| Title: | MOS-FET as a current sensor in power electronics converters |
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| Authors: | ID Pajer, Rok (Author)
ID Milanovič, Miro (Author)
ID Premzel, Branko (Author)
ID Rodič, Miran (Author) |
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| Files: |  Sensors_2015_Pajer_et_al._MOS-FET_as_a_Current_Sensor_in_Power_Electronics_Converters.pdf (1,32 MB)
MD5: 89E7A6DAB8F2C73BFC8A4C83661CAE30
 http://www.mdpi.com/1424-8220/15/8/18061/
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FERI - Faculty of Electrical Engineering and Computer Science
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| Abstract: | This paper presents a current sensing principle appropriate for use in power electronics’ converters. This current measurement principle has been developed for metal oxide semiconductor field effect transistor (MOS-FET) and is based on UDS voltage measurement. In practice, shunt resistors and Hall effect sensors are usually used for these purposes, but the presented principle has many advantages. There is no need for additional circuit elements within high current paths, causing parasitic inductances and increased production complexity. The temperature dependence of MOS-FETs conductive resistance RDS−ON is considered in order to achieve the appropriate measurement accuracy. The “MOS-FET sensor” is also accompanied by a signal acquisition electronics circuit with an appropriate frequency bandwidth. The obtained analogue signal is therefore interposed to an A-D converter for further data acquisition. In order to achieve sufficient accuracy, a temperature compensation and appropriate approximation is used (RDS−ON = RDS−ON(Vj)). The MOS-FET sensor is calibrated according to a reference sensor based on the Hall-effect principle. The program algorithm is executed on 32-bit ARM M4 MCU, STM32F407. |
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| Keywords: | power electronics, converters, MOS-FET, current measurement, thermal model |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2015 |
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| Number of pages: | str. 18061-18079 |
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| Numbering: | Letn. 15, št. 8 |
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| PID: | 20.500.12556/DKUM-60161  |
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| ISSN: | 1424-8220 |
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| UDC: | 681.5 |
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| ISSN on article: | 1424-8220 |
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| COBISS.SI-ID: | 18853910 |
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| DOI: | 10.3390/s150818061 |
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| NUK URN: | URN:SI:UM:DK:H8AQLBFG |
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| Publication date in DKUM: | 22.06.2017 |
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| Views: | 1662 |
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| Downloads: | 384 |
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| Metadata: |    |
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| Categories: | Misc.
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