@inproceedings{
 title = {Parametrized Modelling of a Hybrid Electromagnetic System with Magnetic Modulation},
 type = {inproceedings},
 year = {2019},
 identifiers = {[object Object]},
 pages = {1-4},
 websites = {https://ieeexplore.ieee.org/document/8771468/},
 publisher = {IEEE},
 city = {Varna},
 id = {10cdc813-82ce-3dea-b0cd-828ecec28c0d},
 created = {2019-09-02T20:48:29.591Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.362Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Iatcheva2019},
 country = {Bulgaria},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Iatcheva, Ilona and Balabozov, Iosko and Yankulova, Elena and Kirilov, Ludmil},
 booktitle = {2019 16th Conference on Electrical Machines, Drives and Power Systems (ELMA)},
 keywords = {Conference Proceedings}
}

@inproceedings{
 title = {Experimental and Numerical Analysis of the Thermal Field in a High Power Low Voltage Fuse},
 type = {inproceedings},
 year = {2019},
 identifiers = {[object Object]},
 pages = {1-5},
 websites = {https://ieeexplore.ieee.org/document/8771553/},
 month = {6},
 publisher = {IEEE},
 city = {Varna},
 id = {95fd9320-3269-35d7-8403-0d00a3b049d0},
 created = {2019-09-02T20:50:11.774Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.503Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Hadzhiev2019},
 country = {Bulgaria},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Hadzhiev, Ivan and Malamov, Dian and Balabozov, Iosko and Yatchev, Ivan},
 booktitle = {2019 16th Conference on Electrical Machines, Drives and Power Systems (ELMA)},
 keywords = {Conference Proceedings}
}

@inproceedings{
 title = {Computer Modeling and Experimental Verification of a Hybrid Electromagnetic System with Magnetic Flux Modulation},
 type = {inproceedings},
 year = {2019},
 identifiers = {[object Object]},
 keywords = {Conference Proceedings},
 pages = {1-5},
 websites = {https://ieeexplore.ieee.org/document/8771639/},
 publisher = {IEEE},
 city = {Varna},
 id = {e32f76d2-7b53-3d54-b097-d0e024ae526a},
 created = {2019-09-02T20:50:30.655Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-09-17T23:07:25.170Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2019},
 country = {Bulgaria},
 private_publication = {false},
 abstract = {Finite element analysis of a hybrid electromagnetic system with magnetic flux modulation is carried out. The main idea is to build computer model for studying the main parameters of devices of this type. To ensure reliability of achieved results from the computer model, an experimental prototype of the modelled device is built. Specially designed control and measurement circuits are assembled. The obtained results are compared and analysed.},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Balabozov, Iosko and Brauer, Hartmut and Gueorgiev, Vultchan},
 booktitle = {2019 16th Conference on Electrical Machines, Drives and Power Systems (ELMA)}
}

Finite element analysis of a hybrid electromagnetic system with magnetic flux modulation is carried out. The main idea is to build computer model for studying the main parameters of devices of this type. To ensure reliability of achieved results from the computer model, an experimental prototype of the modelled device is built. Specially designed control and measurement circuits are assembled. The obtained results are compared and analysed.

@article{
 title = {Analysis of the influence of some factors on the contact resistance of bolted busbar connections},
 type = {article},
 year = {2019},
 identifiers = {[object Object]},
 volume = {618},
 websites = {https://iopscience.iop.org/article/10.1088/1757-899X/618/1/012025/pdf},
 id = {0b794655-8514-3892-a8f7-7c75e1772e3f},
 created = {2019-11-13T12:31:07.326Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2020-04-01T16:09:20.294Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Hadzhiev2019},
 private_publication = {false},
 abstract = {The paper presents an experimental setup and a method for determining the contact resistance between busbars at a given contact force. Experiments have been conducted by means of an experimental setup, developed for the purpose of studying the influence of the contact force on the contact resistance between busbars with cross-sectional area of 60x6 mm. The study has been performed for two types of bolted connections, complying with DIN 43673, which have been studied for both copper and aluminum busbars.},
 bibtype = {article},
 author = {Hadzhiev, Ivan and Malamov, Dian and Balabozov, Iosko and Yatchev, Ivan},
 journal = {IOP Conference Series: Materials Science and Engineering},
 number = {1}
}

The paper presents an experimental setup and a method for determining the contact resistance between busbars at a given contact force. Experiments have been conducted by means of an experimental setup, developed for the purpose of studying the influence of the contact force on the contact resistance between busbars with cross-sectional area of 60x6 mm. The study has been performed for two types of bolted connections, complying with DIN 43673, which have been studied for both copper and aluminum busbars.

@inproceedings{
 title = {Transition of E-Core Transformer to Hybrid Electromagnetic System with Magnetic Flux Modulation},
 type = {inproceedings},
 year = {2019},
 identifiers = {[object Object]},
 keywords = {FEM modelling,hybrid electromagnetic system,magnetic flux modulation},
 websites = {https://doi.org/10.1109/BulEF48056.2019.9030783},
 publisher = {IEEE},
 city = {Varna},
 id = {a17ef595-9026-3d39-ba31-f7287d370b22},
 created = {2020-07-19T08:40:59.125Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2020-07-19T08:40:59.125Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 private_publication = {false},
 abstract = {Efficiency of two electromagnetic systems is compared - E-core transformer and hybrid electromagnetic system with magnetic modulation. The latter is created by adding permanent magnet to the construction of the E-core transformer. Coupled electric circuit - electromagnetic field analysis is carried out using FEM based software. The results show higher efficiency of the hybrid system.},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Balabozov, Iosko},
 booktitle = {2019 11th Electrical Engineering Faculty Conference (BulEF)}
}

Efficiency of two electromagnetic systems is compared - E-core transformer and hybrid electromagnetic system with magnetic modulation. The latter is created by adding permanent magnet to the construction of the E-core transformer. Coupled electric circuit - electromagnetic field analysis is carried out using FEM based software. The results show higher efficiency of the hybrid system.

@inproceedings{
 title = {Modelling of Hybrid System with Magnetic Flux Modulation with Different Input Coils},
 type = {inproceedings},
 year = {2019},
 identifiers = {[object Object]},
 keywords = {Project HEMSMM},
 websites = {https://doi.org/10.1109/ISEF45929.2019.9097089},
 publisher = {IEEE Xplore},
 city = {Nancy},
 id = {b47cfb6f-d090-3ba2-bda9-56105cde0ee7},
 created = {2020-07-19T11:15:43.279Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2020-07-19T11:15:43.279Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 private_publication = {false},
 abstract = {In the present work, computer modelling of hybrid electromagnetic system with magnetic flux modulation is carried out. The influence of different types of control coils on the operation of the device has been investigated. The modelling has been performed using the finite element method by solving coupled electromagnetic field ' electric circuit problem. Results for electromagnetic field and input / output characteristics of the studied system have been obtained. Comparison of the results for different control coils is made.},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Balabozov, Iosko and Hadzhiev, Ivan},
 booktitle = {2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF)}
}

In the present work, computer modelling of hybrid electromagnetic system with magnetic flux modulation is carried out. The influence of different types of control coils on the operation of the device has been investigated. The modelling has been performed using the finite element method by solving coupled electromagnetic field ' electric circuit problem. Results for electromagnetic field and input / output characteristics of the studied system have been obtained. Comparison of the results for different control coils is made.

@inproceedings{
 title = {Computer modeling and experimental verification of a hybrid electromagnetic system with magnetic flux modulation},
 type = {inproceedings},
 year = {2019},
 identifiers = {[object Object]},
 keywords = {Computer modelling,Experimental tests,Hybrid electromagnetic system,Magnetic flux modulation},
 id = {4638a79d-6328-3da6-9609-c55a90a1ed2b},
 created = {2019-08-17T23:59:00.000Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2021-01-07T09:31:10.744Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {false},
 hidden = {false},
 private_publication = {false},
 abstract = {© 2019 IEEE. Finite element analysis of a hybrid electromagnetic system with magnetic flux modulation is carried out. The main idea is to build computer model for studying the main parameters of devices of this type. To ensure reliability of achieved results from the computer model, an experimental prototype of the modelled device is built. Specially designed control and measurement circuits are assembled. The obtained results are compared and analysed.},
 bibtype = {inproceedings},
 author = {Yatchev, I. and Balabozov, I. and Brauer, H. and Gueorgiev, V.},
 booktitle = {2019 16th Conference on Electrical Machines, Drives and Power Systems, ELMA 2019 - Proceedings}
}

© 2019 IEEE. Finite element analysis of a hybrid electromagnetic system with magnetic flux modulation is carried out. The main idea is to build computer model for studying the main parameters of devices of this type. To ensure reliability of achieved results from the computer model, an experimental prototype of the modelled device is built. Specially designed control and measurement circuits are assembled. The obtained results are compared and analysed.

@article{
 title = {Modelling of a Hall Effect-Based Current Sensor with an Open Core Magnetic Concentrator},
 type = {article},
 year = {2018},
 identifiers = {[object Object]},
 keywords = {Journal Article},
 volume = {18},
 websites = {https://www.mdpi.com/1424-8220/18/4/1260/htm},
 id = {89ab8f63-6aa8-3e13-a699-bc35ff2d254f},
 created = {2018-05-03T01:55:17.786Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-09-17T23:07:24.640Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2018b},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 abstract = {© 2018 by the authors. Licensee MDPI, Basel, Switzerland. The present paper deals with the modelling of a Hall effect current sensor with open core magnetic concentrator. 3D magnetic field modelling is carried out using the finite element method (FEM) and Comsol Multiphysics software. Two rectangular core constructions are considered. Different geometric parameters of the magnetic concentrator are varied and their influence on the sensor characteristic is studied, with the aim of reducing the dependence on the output signal on the distance to the conductor. Of the studied parameters, core window length leads to the most significant change in the sensor characteristic. Future work can include the optimization of the sensor construction.},
 bibtype = {article},
 author = {Yatchev, Ivan and Sen, Mehmet and Balabozov, Iosko and Kostov, Ivan},
 journal = {Sensors (Switzerland)},
 number = {4}
}

© 2018 by the authors. Licensee MDPI, Basel, Switzerland. The present paper deals with the modelling of a Hall effect current sensor with open core magnetic concentrator. 3D magnetic field modelling is carried out using the finite element method (FEM) and Comsol Multiphysics software. Two rectangular core constructions are considered. Different geometric parameters of the magnetic concentrator are varied and their influence on the sensor characteristic is studied, with the aim of reducing the dependence on the output signal on the distance to the conductor. Of the studied parameters, core window length leads to the most significant change in the sensor characteristic. Future work can include the optimization of the sensor construction.

@inproceedings{
 title = {Experimental Research with Microcontroller System for Defining of Joule Integral of Fuse},
 type = {inproceedings},
 year = {2018},
 identifiers = {[object Object]},
 keywords = {Conference Proceedings},
 pages = {1-4},
 websites = {https://ieeexplore.ieee.org/document/8646930/},
 publisher = {IEEE},
 city = {Sozopol},
 id = {4ff5942c-f641-3804-a083-8c87916b7f5e},
 created = {2019-09-02T20:50:48.855Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2020-04-01T21:45:33.114Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2018b},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,c940c7da-28ff-4d14-afd1-fb4bf9d69514},
 private_publication = {false},
 abstract = {In the present work a system using a microcontroller electronic platform in the realization of an experimental determination of a Joule integral of a fuse is presented. An algorithm is proposed based on which software has been developed and a working prototype of a microcontroller system is established.},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko},
 booktitle = {2018 10th Electrical Engineering Faculty Conference (BulEF)}
}

In the present work a system using a microcontroller electronic platform in the realization of an experimental determination of a Joule integral of a fuse is presented. An algorithm is proposed based on which software has been developed and a working prototype of a microcontroller system is established.

@inproceedings{
 title = {Development of Energy Efficient Control System for Polarized Electromagnets},
 type = {inproceedings},
 year = {2018},
 identifiers = {[object Object]},
 pages = {1-3},
 websites = {https://ieeexplore.ieee.org/document/8646919/},
 month = {9},
 publisher = {IEEE},
 city = {Sozopol},
 id = {654a8cf7-e956-3c3e-a90b-5addcc1fb8d1},
 created = {2019-09-02T20:51:14.358Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.365Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2018},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,c940c7da-28ff-4d14-afd1-fb4bf9d69514},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko},
 booktitle = {2018 10th Electrical Engineering Faculty Conference (BulEF)},
 keywords = {Conference Proceedings}
}

@inproceedings{
 title = {Prototype of a Microcontroller System for Defining Joule Integral of Fuse},
 type = {inproceedings},
 year = {2018},
 identifiers = {[object Object]},
 pages = {1-3},
 websites = {https://ieeexplore.ieee.org/document/8646920/},
 month = {9},
 publisher = {IEEE},
 city = {Sozopol},
 id = {ff664bb1-4887-39d5-aab1-2cbaa9ad2ab8},
 created = {2019-09-02T20:51:32.301Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.372Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2018a},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,c940c7da-28ff-4d14-afd1-fb4bf9d69514},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko},
 booktitle = {2018 10th Electrical Engineering Faculty Conference (BulEF)},
 keywords = {Conference Proceedings}
}

@inproceedings{
 title = {Experimental Research with Energy Efficient Control System for Polarized Electromagnets},
 type = {inproceedings},
 year = {2018},
 identifiers = {[object Object]},
 pages = {1-4},
 websites = {https://ieeexplore.ieee.org/document/8646948/},
 month = {9},
 publisher = {IEEE},
 city = {Sozopol},
 id = {dfe7c725-acbf-315f-b3d0-628346727bcd},
 created = {2019-09-02T20:51:56.744Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.244Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2018c},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,c940c7da-28ff-4d14-afd1-fb4bf9d69514},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko and Hinov, Krastyo},
 booktitle = {2018 10th Electrical Engineering Faculty Conference (BulEF)},
 keywords = {Conference Proceedings}
}

@inproceedings{
 title = {Obtaining Resonance Frequency and Corresponding Circuit Parameters in an Induction Heating System},
 type = {inproceedings},
 year = {2018},
 identifiers = {[object Object]},
 keywords = {Conference Proceedings},
 pages = {1-4},
 websites = {https://ieeexplore.ieee.org/document/8447177/},
 publisher = {IEEE},
 city = {Bourgas},
 id = {91236185-8900-3942-910a-18d900348176},
 created = {2019-09-02T20:52:51.746Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.359Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2018d},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 abstract = {The high efficiency of the systems based on induction heating can be achieved if resonant frequency is provided. In the present paper, an approach employing the finite element method is proposed for determination of the main parameters of LC circuit, necessary to reach the resonance frequency.},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko and Yatchev, Ivan and Brauer, Hartmut},
 booktitle = {2018 20th International Symposium on Electrical Apparatus and Technologies (SIELA)}
}

The high efficiency of the systems based on induction heating can be achieved if resonant frequency is provided. In the present paper, an approach employing the finite element method is proposed for determination of the main parameters of LC circuit, necessary to reach the resonance frequency.

@inproceedings{
 title = {Implementation of a DC Current Sensing Transformer with H-bridge MOSFET Rectifier in a Resonant LLC Converter},
 type = {inproceedings},
 year = {2018},
 identifiers = {[object Object]},
 pages = {1-4},
 websites = {https://ieeexplore.ieee.org/document/8447120/},
 month = {6},
 publisher = {IEEE},
 city = {Bourgas},
 id = {ae18a2db-3022-39ca-a586-6fee7fa9edb5},
 created = {2019-09-02T20:53:16.862Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.493Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Dimitrov2018},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Dimitrov, Borislav and Sharkh, Suleiman and Cruden, Andrew and Balabozov, Iosko},
 booktitle = {2018 20th International Symposium on Electrical Apparatus and Technologies (SIELA)},
 keywords = {Conference Proceedings}
}

@inproceedings{
 title = {Electromagnetic Field Analysis of a Hybrid Electromagnetic System with Magnetic Flux Modulation with One Permanent Magnet and Two Collecting Coils},
 type = {inproceedings},
 year = {2018},
 identifiers = {[object Object]},
 pages = {1-4},
 websites = {https://ieeexplore.ieee.org/document/8447108/},
 month = {6},
 publisher = {IEEE},
 city = {Bourgas},
 id = {b46ad9eb-8375-3acb-ad01-07c5b14cd221},
 created = {2019-09-02T20:53:35.531Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-04T18:12:37.898Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2018a},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Balabozov, Iosko and Hinov, Krastyo and Minchev, Mincho and Gueorgiev, Vultchan},
 booktitle = {2018 20th International Symposium on Electrical Apparatus and Technologies (SIELA)},
 keywords = {Conference Proceedings}
}

@article{
 title = {Influence of Magnetic Concentrator on Hall Effect Based Current Sensor},
 type = {article},
 year = {2018},
 identifiers = {[object Object]},
 pages = {1481-1488},
 volume = {37},
 websites = {https://www.emeraldinsight.com/doi/10.1108/COMPEL-08-2017-0367},
 month = {7},
 day = {2},
 id = {16e2aae5-6cc3-37b1-8cbc-d20f5ab27fbb},
 created = {2019-09-02T20:54:13.446Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.362Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2018c},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 bibtype = {article},
 author = {Yatchev, Ivan and Sen, Mehmet and Balabozov, Iosko and Kostov, Ivan},
 journal = {COMPEL - The international journal for computation and mathematics in electrical and electronic engineering},
 number = {4},
 keywords = {Journal Article}
}

@article{
 title = {Разработване на експериментална система за автоматизирано изследване на електромагнити},
 type = {article},
 year = {2018},
 identifiers = {[object Object]},
 pages = {255-262},
 volume = {68},
 id = {0bb3b620-4bc9-3eda-8c82-0ff3271b25e7},
 created = {2019-09-06T19:56:38.861Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.635Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {2018},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d942b59e-bdac-44c2-91db-ee8544e721be},
 private_publication = {false},
 bibtype = {article},
 author = {Балабозов, Йоско and Хинов, Кръстьо and Стаменов, Виктор and Ячев, Иван},
 journal = {Годишник на Технически Университет - София},
 number = {1},
 keywords = {Journal Article - Not Indexed}
}

@article{
 title = {Експериментално изследване на токови сензори базирани на ефекта на Хол},
 type = {article},
 year = {2018},
 identifiers = {[object Object]},
 pages = {249-254},
 volume = {68},
 id = {85345f6b-7423-3b15-b3bb-c0540a5c488e},
 created = {2019-09-06T19:59:03.363Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.517Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {2018a},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d942b59e-bdac-44c2-91db-ee8544e721be},
 private_publication = {false},
 bibtype = {article},
 author = {Шен, Мехмет and Балабозов, Йоско and Хинов, Кръстьо and Иванов, Боян and Ячев, Иван},
 journal = {Годишник на Технически Университет - София},
 number = {1},
 keywords = {Journal Article - Not Indexed}
}

@inproceedings{
 title = {Influence of the Air Gap of Hybrid Systems with Magnetic Flux Modulation},
 type = {inproceedings},
 year = {2018},
 identifiers = {[object Object]},
 keywords = {Conference Proceedings},
 pages = {1-4},
 websites = {https://ieeexplore.ieee.org/document/8742445/},
 month = {11},
 publisher = {IEEE},
 city = {Bucharest},
 id = {190ce356-0771-31bd-9e6c-ee51016a2bac},
 created = {2019-09-06T23:44:07.429Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.609Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2018},
 country = {Romania},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d942b59e-bdac-44c2-91db-ee8544e721be},
 private_publication = {false},
 abstract = {Influence of air gap in the main magnetic path is studied in a hybrid system with magnetic flux modulation. The constant magnetic flux is generated by permanent magnets and additional magnetic field is applied to the system by externally power supplied coils.},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Balabozov, Iosko and Hinov, Krastyo and Hadzhiev, Ivan},
 booktitle = {2018 International Symposium on Fundamentals of Electrical Engineering, ISFEE 2018}
}

Influence of air gap in the main magnetic path is studied in a hybrid system with magnetic flux modulation. The constant magnetic flux is generated by permanent magnets and additional magnetic field is applied to the system by externally power supplied coils.

@inproceedings{
 title = {Modelling of Magnetic Concentrators in Induction Heating Systems},
 type = {inproceedings},
 year = {2017},
 identifiers = {[object Object]},
 keywords = {Conference Proceedings},
 websites = {https://ieeexplore.ieee.org/document/7955484},
 publisher = {IEEE},
 city = {Sofia},
 id = {53570783-c81e-38c6-a7a1-6a86651a8ce1},
 created = {2017-12-20T05:12:25.688Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-09-17T23:07:24.836Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2017},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 abstract = {© 2017 IEEE. The efficiency of the induction heating systems is essential in the modern productions. In the present paper, through FEM modelling, the influence of magnetic concentrators on the efficiency of such system is studied.},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko and Brauer, Hartmut and Yatchev, Ivan},
 booktitle = {2017 15th International Conference on Electrical Machines, Drives and Power Systems (ELMA)}
}

© 2017 IEEE. The efficiency of the induction heating systems is essential in the modern productions. In the present paper, through FEM modelling, the influence of magnetic concentrators on the efficiency of such system is studied.

@inproceedings{
 title = {Modelling of Current Sensor Based on Hall Effect},
 type = {inproceedings},
 year = {2017},
 identifiers = {[object Object]},
 keywords = {Conference Proceedings},
 websites = {https://ieeexplore.ieee.org/document/7955485},
 publisher = {IEEE},
 city = {Sofia},
 id = {66da5915-0209-3f4f-8bb7-5bce95dea76d},
 created = {2017-12-20T05:12:25.751Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-09-17T23:07:24.765Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Sen2017},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 abstract = {© 2017 IEEE. In this article, computer models for Hall effect-based current sensors are developed. The main objective is to obtain models, with which the output characteristics of such sensors is studied, as well as to determine various factors that affect their sensitivity.},
 bibtype = {inproceedings},
 author = {Sen, Mehmet and Balabozov, Iosko and Yatchev, Ivan and Ivanov, Ratcho},
 booktitle = {2017 15th International Conference on Electrical Machines, Drives and Power Systems (ELMA)}
}

© 2017 IEEE. In this article, computer models for Hall effect-based current sensors are developed. The main objective is to obtain models, with which the output characteristics of such sensors is studied, as well as to determine various factors that affect their sensitivity.

@article{
 title = {Автоматизирана система за изследване на динамичните характеристики на електромагнити},
 type = {article},
 year = {2017},
 identifiers = {[object Object]},
 pages = {381-387},
 volume = {67},
 id = {1b73e597-d955-3880-a801-eb2a7c5d7957},
 created = {2019-09-06T20:02:16.825Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.509Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {2017},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d942b59e-bdac-44c2-91db-ee8544e721be},
 private_publication = {false},
 bibtype = {article},
 author = {Балабозов, Йоско and Хинов, Кръстьо and Венков, Данчо and Ячев, Иван},
 journal = {Годишник на Технически Университет - София},
 number = {1},
 keywords = {Journal Article - Not Indexed}
}

@inbook{
 type = {inbook},
 year = {2016},
 identifiers = {[object Object]},
 keywords = {Book Section},
 volume = {648},
 websites = {https://link.springer.com/chapter/10.1007/978-3-319-32207-0_14},
 publisher = {Springer, Cham},
 id = {47ee3de0-6844-381b-a0d4-7e1fb87cfa69},
 created = {2017-07-06T10:00:55.356Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-09-17T23:07:24.722Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Karastoyanov2016},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 abstract = {© Springer International Publishing Switzerland 2016.The graphical interfaces based on visual representation and direct manipulation of objects made the adequate use of computers quite difficult for people with reduced sight. Within the European Union, the problem with the access of blind people to computer resources is quite pressing. A new type graphical Braille screen is developed. The Braille screen is a matrix with linear electromagnetic micro drives and non magnetic needles, passing trough the axes of the electromagnets. Over the electromagnets is mounted a grid with holes. The needles go through the holes and move up pimples. The visually impaired peoples feel them tactile way and can adopt symbols and graphics. Permanent magnet linear actuator intended for driving a needle in Braille screen has been proposed and optimized. Finite element analysis, response surface methodology and design of experiments have been employed for the optimization. The influence of different parameters of the construction of the developed permanent magnet linear electromagnetic actuator for driving a needle in a Braille screen is also studied. Static force characteristics of the actuator for driving a needle in Braille screen are presented. Using the graphical Braille screen, we can present symbols and simple graphics—Windows icons for example. The results of experiments for high speed moving of Braille needles using linear electromagnetic micro drive are presented. The experiments were conducted in the laboratory “Smart lab” with using of high speed camera NAC Memrecam. The international for Bulgarian patent application is presented as follows: Braille Screen—WIPO Patent Application, No P C T/B G 2014/000038, October 24, 2014; Braille Screen—Bulgarian Patent Application, No 111638, November 29, 2013.},
 bibtype = {inbook},
 author = {Karastoyanov, Dimitar and Yatchev, Ivan and Balabozov, Iosko},
 chapter = {Innovative Graphical Braille Screen for Visually Impaired People},
 title = {Studies in Computational Intelligence}
}

© Springer International Publishing Switzerland 2016.The graphical interfaces based on visual representation and direct manipulation of objects made the adequate use of computers quite difficult for people with reduced sight. Within the European Union, the problem with the access of blind people to computer resources is quite pressing. A new type graphical Braille screen is developed. The Braille screen is a matrix with linear electromagnetic micro drives and non magnetic needles, passing trough the axes of the electromagnets. Over the electromagnets is mounted a grid with holes. The needles go through the holes and move up pimples. The visually impaired peoples feel them tactile way and can adopt symbols and graphics. Permanent magnet linear actuator intended for driving a needle in Braille screen has been proposed and optimized. Finite element analysis, response surface methodology and design of experiments have been employed for the optimization. The influence of different parameters of the construction of the developed permanent magnet linear electromagnetic actuator for driving a needle in a Braille screen is also studied. Static force characteristics of the actuator for driving a needle in Braille screen are presented. Using the graphical Braille screen, we can present symbols and simple graphics—Windows icons for example. The results of experiments for high speed moving of Braille needles using linear electromagnetic micro drive are presented. The experiments were conducted in the laboratory “Smart lab” with using of high speed camera NAC Memrecam. The international for Bulgarian patent application is presented as follows: Braille Screen—WIPO Patent Application, No P C T/B G 2014/000038, October 24, 2014; Braille Screen—Bulgarian Patent Application, No 111638, November 29, 2013.

@inproceedings{
 title = {Study of Electromagnetic Field Distribution and Force Characteristics of a DC Electromagnetic Actuator with T-shaped Armature},
 type = {inproceedings},
 year = {2016},
 identifiers = {[object Object]},
 keywords = {Conference Proceedings},
 websites = {https://ieeexplore.ieee.org/document/7543011},
 publisher = {IEEE},
 city = {Bourgas},
 id = {f342b11e-c177-3c29-9a8f-7b239baff256},
 created = {2017-07-06T10:00:55.454Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-09-17T23:07:24.737Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Hadzhiev2016},
 country = {Bulgaria},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 abstract = {© 2016 IEEE.This paper studies a solenoid DC electromagnetic actuator with T-shaped armature. Using the finite element method, a computer model has been developed in the software product Comsol Multiphysics for studying the 3D magnetic field and the force characteristics of the actuator. Comparison has been made with results, obtained for an actuator with E-shaped core and flat armature and with experiment.},
 bibtype = {inproceedings},
 author = {Hadzhiev, Ivan and Malamov, Dean and Balabozov, Iosko and Yatchev, Ivan},
 booktitle = {2016 19th International Symposium on Electrical Apparatus and Technologies, SIELA 2016}
}

© 2016 IEEE.This paper studies a solenoid DC electromagnetic actuator with T-shaped armature. Using the finite element method, a computer model has been developed in the software product Comsol Multiphysics for studying the 3D magnetic field and the force characteristics of the actuator. Comparison has been made with results, obtained for an actuator with E-shaped core and flat armature and with experiment.

@article{
 title = {Изследване на движението на електромагнит за Брайлов екран чрез високоскоростна камера},
 type = {article},
 year = {2016},
 identifiers = {[object Object]},
 pages = {541-547},
 volume = {66},
 id = {555184a1-6fb9-3b68-9bf1-8a1afafa7ff4},
 created = {2019-09-06T20:06:41.455Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.596Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {2016},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d942b59e-bdac-44c2-91db-ee8544e721be},
 private_publication = {false},
 bibtype = {article},
 author = {Балабозов, Йоско and Хинов, Кръстьо and Стоименов, Николай and Гьошев, Станислав and Карастоянов, Димитър},
 journal = {Годишник на Технически Университет - София},
 number = {1},
 keywords = {Journal Article - Not Indexed}
}

@inproceedings{
 title = {Computer Modeling and Experimental Verification of Dynamic Characteristics of Permanent Magnet Linear Actuator for Braille Screen},
 type = {inproceedings},
 year = {2014},
 identifiers = {[object Object]},
 keywords = {Conference Proceedings},
 websites = {https://ieeexplore.ieee.org/document/6972600},
 publisher = {IEEE},
 city = {Craiova, Romania},
 id = {8a1f2d06-339f-3dc0-bcbb-30c8c83e3d74},
 created = {2017-07-06T10:00:55.267Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-09-17T23:07:24.639Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2014},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d966f72b-633a-4beb-ad3e-fb23038c9f21},
 private_publication = {false},
 abstract = {© 2014 IEEE.This paper presents coupled dynamic model of permanent magnet actuator for Braille screen. For modelling of the problem, finite element method and Comsol Multiphysics software are used. An experimental study was also provided over several prototype modules of the studied actuator. The comparison between computed and experimental results shows good agreement.},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko and Yatchev, Ivan and Hinov, Krastyo},
 booktitle = {2014 International Conference on Applied and Theoretical Electricity (ICATE)}
}

© 2014 IEEE.This paper presents coupled dynamic model of permanent magnet actuator for Braille screen. For modelling of the problem, finite element method and Comsol Multiphysics software are used. An experimental study was also provided over several prototype modules of the studied actuator. The comparison between computed and experimental results shows good agreement.

@article{
 title = {Изследване на електромагнит за Брайлов екран с подобрени характеристики},
 type = {article},
 year = {2014},
 identifiers = {[object Object]},
 pages = {135-141},
 volume = {64},
 id = {e671423d-5378-30d8-8a60-0404c854b8ce},
 created = {2019-09-06T20:12:11.452Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.251Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {2014},
 folder_uuids = {8ccd7323-81f7-4d99-97b7-f045800146b6,d942b59e-bdac-44c2-91db-ee8544e721be},
 private_publication = {false},
 bibtype = {article},
 author = {Хинов, Кръстьо and Балабозов, Йоско and Ячев, Иван},
 journal = {Годишник на Технически Университет - София},
 number = {4},
 keywords = {Journal Article - Not Indexed}
}

@inproceedings{
 title = {Optimization of Ferromagnetic Discs in Permanent Magnet Linear Actuator for Braille Screen},
 type = {inproceedings},
 year = {2013},
 identifiers = {[object Object]},
 city = {Nis},
 id = {cd4b773b-5ef3-3ca2-b390-33f812b0e6e4},
 created = {2019-09-06T19:21:31.300Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.635Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2013},
 country = {Serbia},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko},
 booktitle = {7-th International PhD Seminar on Computational electromagnetics and bioeffects of electromagnetic fields – CEMBEF 2013},
 keywords = {Conference Proceedings - Not Indexed}
}

@inproceedings{
 title = {Influence of Different Geometric Parameters on the Static Force Characteristics of an Electromagnetic Actuator for Braille Screen},
 type = {inproceedings},
 year = {2013},
 city = {Pilsen, Czech Republic},
 id = {46de5b4a-d703-3a44-b643-6d16dbf0b8a1},
 created = {2019-09-06T19:29:59.190Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:14:47.507Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2013},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Balabozov, Iosko and Hinov, Krastyo and Gueorgiev, Vultchan and Karastoyanov, Dimitar},
 booktitle = {International Symposium on Theoretical Electrical Engineering – ISTET 2013},
 keywords = {Conference Proceedings - Not Indexed}
}

@article{
 title = {Влияние на несиметрии в конструкцията върху задвижващата сила на електромагнит за Брайлов дисплей},
 type = {article},
 year = {2013},
 identifiers = {[object Object]},
 pages = {17-22},
 volume = {63},
 id = {e4767143-c538-3dfd-9f35-088e322904b5},
 created = {2019-09-06T20:14:08.649Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:37:38.426Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {2013},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {article},
 author = {Хинов, Кръстьо and Балабозов, Йоско and Ячев, Иван},
 journal = {Годишник на Технически Университет - София},
 number = {6},
 keywords = {Journal Article - Not Indexed}
}

@inproceedings{
 title = {Optimization of Permanent Magnet Linear Actuator for Braille Screen},
 type = {inproceedings},
 year = {2012},
 city = {Graz},
 id = {a233ef99-5ef8-3cb0-95c7-a567199add6b},
 created = {2019-09-06T19:38:43.010Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:37:38.438Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2012},
 country = {Austria},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Balabozov, Iosko and Hinov, Krastyo and Gueorgiev, Vultchan and Karastoyanov, Dimitar},
 booktitle = {15-th International IGTE Symposium on Numerical Field Calculation in Electrical Engineering},
 keywords = {Conference Proceedings - Not Indexed}
}

@inproceedings{
 title = {Influence of the Pole Angle on the Static Force Characteristics of a Permanent Magnet Actuator for Braille Screen},
 type = {inproceedings},
 year = {2012},
 identifiers = {[object Object]},
 city = {Novi Sad},
 id = {1ef7f444-260a-35bb-bd05-21e481ab1a9f},
 created = {2019-09-06T19:40:53.420Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:37:38.317Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2012},
 country = {Serbia},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko},
 booktitle = {6-th International PhD Seminar on Computational electromagnetics and bioeffects of electromagnetic fields – CEMBEF 2012},
 keywords = {Conference Proceedings - Not Indexed}
}

@inproceedings{
 title = {Influence of Different Factors on the Static Force Characteristics of a Permanent Magnet Linear Actuator for Braille Screen},
 type = {inproceedings},
 year = {2012},
 city = {Bourgas},
 id = {34deb0e3-7173-395e-b3a3-7f734aa32cc0},
 created = {2019-09-06T19:43:32.348Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:37:38.402Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Balabozov2012a},
 country = {Bulgaria},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Balabozov, Iosko and Yatchev, Ivan and Hinov, Krastyo and Karastoyanov, Dimitar},
 booktitle = {XVII-th International Symposium on Electrical Apparatus and Technologies - SIELA 2012},
 keywords = {Conference Proceedings - Not Indexed}
}

@inproceedings{
 title = {Изследване влиянието на някои геометрични фактори върху характеристиките на поляризиран изпълнителен електромагнит за Брайлов екран},
 type = {inproceedings},
 year = {2012},
 pages = {405-411},
 volume = {2},
 city = {Созопол},
 id = {f7105a0f-5da1-32fd-a6b2-e34f4f98b91f},
 created = {2019-09-06T20:17:59.247Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:37:38.488Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {2012a},
 country = {България},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Хинов, Кръстьо and Балабозов, Йоско and Георгиев, Вълчан and Ячев, Иван and Карастоянов, Димитър},
 booktitle = {IV-та Научна конференция ЕФ‘2012},
 keywords = {Conference Proceedings - Not Indexed}
}

@inproceedings{
 title = {Force Characteristics of an Electromagnetic Actuator for Braille Screen},
 type = {inproceedings},
 year = {2011},
 identifiers = {[object Object]},
 city = {Varna},
 id = {6fc2fc9a-60b2-318a-b245-6ce0d3e8b118},
 created = {2019-09-06T19:47:04.794Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:37:38.417Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2011b},
 country = {Bulgaria},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Hinov, Krastyo and Gueorgiev, Vultchan and Karastoyanov, Dimitar and Balabozov, Iosko},
 booktitle = {International Conference - ELMA 2011},
 keywords = {Conference Proceedings - Not Indexed}
}

@inproceedings{
 title = {Finite Element Modeling of Electromagnets for Braille Screen},
 type = {inproceedings},
 year = {2011},
 city = {Nis},
 id = {ddf3c501-d3fa-31bf-8786-d2f0c9e48c77},
 created = {2019-09-06T19:49:10.489Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:37:38.431Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2011},
 country = {Serbia},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 bibtype = {inproceedings},
 author = {Yatchev, Ivan and Hinov, Krastyo and Balabozov, Iosko and Gueorgiev, Vultchan and Karastoyanov, Dimitar},
 booktitle = {10-th International Conference on Applied Electromagnetics - PES 2011},
 keywords = {Conference Proceedings - Not Indexed}
}

@article{
 title = {Static Force Characteristics of Electromagnetic Actuators for Braille Screen},
 type = {article},
 year = {2011},
 identifiers = {[object Object]},
 pages = {157-167},
 volume = {24},
 websites = {http://www.doiserbia.nb.rs/Article.aspx?ID=0353-36701102157Y},
 id = {c4517cc7-7f2e-3dd3-bc09-50f71d0fb277},
 created = {2019-09-06T19:51:56.484Z},
 file_attached = {false},
 profile_id = {53302730-7b0b-3598-84bc-0c824c8d5a8d},
 last_modified = {2019-10-02T06:37:38.341Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Yatchev2011a},
 folder_uuids = {98d53719-b3f8-4bef-871f-69a77b082456},
 private_publication = {false},
 abstract = {Several constructions of electromagnetic actuators with moving permanent magnet for Braille screen are studied. All they are formed from a basic one that consists of two coils, core and moving permanent magnet. The finite element method is used for modelling of the magnetic field and for obtaining the electromagnetic force acting on the mover. The static force-stroke characteristics are obtained for four different constructions of the actuator. The constructions with ferromagnetic disc between the coils ensure greater force than the ones without disc and can reach the required minimum force.},
 bibtype = {article},
 author = {Yatchev, Ivan and Hinov, Krastyo and Balabozov, Iosko and Krasteva, Kristina},
 journal = {Facta universitatis - series: Electronics and Energetics},
 number = {2},
 keywords = {Journal Article - Not Indexed}
}

Several constructions of electromagnetic actuators with moving permanent magnet for Braille screen are studied. All they are formed from a basic one that consists of two coils, core and moving permanent magnet. The finite element method is used for modelling of the magnetic field and for obtaining the electromagnetic force acting on the mover. The static force-stroke characteristics are obtained for four different constructions of the actuator. The constructions with ferromagnetic disc between the coils ensure greater force than the ones without disc and can reach the required minimum force.