Measurement of instantaneous losses in switching power devices

Author

Locci, N. ; Mocci, F. ; Tosi, M.

Author_Institution

Inst. of Electrotech., Cagliari Univ., Italy

fYear

1988

fDate

20-22 Apr 1988

Firstpage

314

Lastpage

318

Abstract

A technique is described for measuring instantaneous power losses in electronic-switching power devices. The losses are characterized over the different intervals of a switching cycle (turn-on delay, rise-time, on-state, turn-off delay, fall-time, off-state). A system for measuring voltages and currents is used that is based on sampling at 200 Ms/s for data acquisition. These data are then transferred to a PC and conditioned and processed in order to obtain the instantaneous and average values of power losses for any duty cycle or single impulse

Keywords

computerised instrumentation; electric current measurement; loss measurement; microcomputer applications; power measurement; power supplies to apparatus; power supply circuits; voltage measurement; PC; average values; computerised instrumentation; data acquisition; electric current measurement; fall-time; instantaneous losses; off-state; on-state; power losses; power measurement; rise-time; switching cycle; switching power; turn-off delay; turn-on delay; voltage measurement; Current measurement; Delay effects; Frequency; Loss measurement; Power measurement; Power semiconductor switches; Switching circuits; Switching loss; Temperature; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1988. IMTC-88. Conference Record., 5th IEEE

Conference_Location

San Diego, CA

Type

conf

DOI

10.1109/IMTC.1988.10874

Filename

10874