Title :
An optimum drive and clamp circuit design with controlled switching for a snubberless PWM-VSI-IGBT inverter leg
Author :
Blaabjerg, Frede ; Pedersen, John K.
Author_Institution :
Inst. of Energy Technol., Aalborg Univ., Denmark
fDate :
29 Jun-3 Jul 1992
Abstract :
A drive circuit for an insulated gate bipolar transistor (IGBT) with overcurrent protection and controlled switching has been optimized together with a normal passive clamp in an effort to achieve a robust and reliable snubberless inverter leg. Expressions for the design of the snubberless concept including drive circuit and clamp are given. Measurements show a good agreement with the design expressions. A short-circuit test at different operating temperatures is also performed as well as multiple short-circuits. It is concluded that the drive circuit and the nonactive clamp are a reliable and cheap solution for protecting the inverter leg
Keywords :
driver circuits; insulated gate bipolar transistors; invertors; network synthesis; overcurrent protection; power transistors; pulse width modulation; switching circuits; IGBT; PWM; VSI; clamp circuit; design; drive circuit; insulated gate bipolar transistor; inverter; network synthesis; overcurrent protection; power transistors; short-circuit test; snubberless concept; switching circuits; Circuit synthesis; Circuit testing; Clamps; Insulated gate bipolar transistors; Inverters; Leg; Protection; Robust control; Switching circuits; Temperature;
Conference_Titel :
Power Electronics Specialists Conference, 1992. PESC '92 Record., 23rd Annual IEEE
Conference_Location :
Toledo
Print_ISBN :
0-7803-0695-3
DOI :
10.1109/PESC.1992.254660
