Title :
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
fDate :
Sept. 28 1991-Oct. 4 1991
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;
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
DOI :
10.1109/IAS.1991.178050
