Title :
Design of RCD snubbers based upon approximations to the switching characteristics. I. Theoretical development
Author :
Hossain, Zia ; Olejniczak, K.J. ; Burgers, K.C. ; Balda, J.C.
Author_Institution :
Dept. of Electr. Eng., Arkansas Univ., Fayetteville, AR, USA
Abstract :
New optimal RCD snubber design equations for use with BJT-, GTO-, IGBT- and MCT-based switch-mode power converters are presented which specifically incorporate the transient stress effects due to circuit stray inductance. Based on these optimal design equations, analytical expressions for turn-off energy losses are obtained. The analysis presented in this paper is applicable for any power device; the MCT has been chosen here for demonstration
Keywords :
MOS-controlled thyristors; bipolar transistor switches; circuit optimisation; insulated gate bipolar transistors; power bipolar transistors; power semiconductor switches; residual current devices; snubbers; switched mode power supplies; switching circuits; thyristor convertors; BJT; GTO; IGBT; MCT; RCD snubbers design; circuit stray inductance; optimal design equations; power semiconductor switch protection; switch-mode power converters; switching characteristics; transient stress effects; turn-off energy losses; Capacitance; Capacitors; Circuits; Inductance; Snubbers; Stress; Switches; Switching loss; Tail; Voltage;
Conference_Titel :
Electric Machines and Drives Conference Record, 1997. IEEE International
Conference_Location :
Milwaukee, WI
Print_ISBN :
0-7803-3946-0
DOI :
10.1109/IEMDC.1997.604205
