Performance analysis and signal processing in a current sensing power MOSFET (SENSEFET)

Author

Yuvarajan, S. ; Wang, Lu

Author_Institution

North Dakota State Univ., Fargo, ND, USA

fYear

1991

fDate

Sept. 28 1991-Oct. 4 1991

Firstpage

1445

Abstract

Current sensing power MOSFETs (SENSEFETs) provide signals which can be used for current feedback and fast overcurrent protection in converter-fed drives and power supplies. The authors investigate the performance of a SENSEFET used in a DC chopper circuit by obtaining the current sense waveforms. The sense signals contain large switching transients which are to be removed using a special processing circuit. The details of the processing circuit and the waveforms are presented. A current loop is synthesized by feeding back the output of the signal processor.<>

Keywords

choppers (circuits); electric current measurement; electric sensing devices; feedback; insulated gate field effect transistors; power convertors; power transistors; semiconductor device testing; switching circuits; transients; DC chopper; SENSEFET; current feedback; drives; electric sensing devices; fast overcurrent protection; performance; power MOSFET; power convertors; power supplies; signal processing; switching transients; Choppers; Circuit synthesis; Feedback; MOSFETs; Performance analysis; Power supplies; Protection; Signal processing; Signal synthesis; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE

Conference_Location

Dearborn, MI, USA

Print_ISBN

0-7803-0453-5

Type

conf

DOI

10.1109/IAS.1991.178050

Filename

178050