Title :
Measurement of instantaneous losses in switching power devices
Author :
Locci, N. ; Mocci, F. ; Tosi, M.
Author_Institution :
Inst. of Electrotech., Cagliari Univ., Italy
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;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1988. IMTC-88. Conference Record., 5th IEEE
Conference_Location :
San Diego, CA
DOI :
10.1109/IMTC.1988.10874
