Title :
Soft-switching of IGBTs with the help of MOSFETs in bridge-type converters
Author :
Jiang, Yimin ; Hua, Guichao ; Yang, Eric ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
For high power switching power converters, IGBTs are more attractive than MOSFETs due to the lower conduction losses and lower cost. However, the slow turn-on and turn-off characteristics, especially the turn-off current tail of the IGBTs, cause severe switching losses, thus limiting the switching frequency. Several bridge-type converters which achieve soft-switching of IGBTs with the help of the fast-switching MOSFETs are proposed. Experimental results have verified the effectiveness of this scheme
Keywords :
bridge circuits; field effect transistor switches; insulated gate bipolar transistors; losses; power convertors; power semiconductor switches; switching circuits; IGBT; MOSFET; bridge-type converters; high power switching power converters; lower conduction losses; slow turn-on; soft switching; soft-switching; switching losses; turn-off current tail; Capacitors; Costs; Insulated gate bipolar transistors; MOSFET circuits; Power electronics; Switches; Switching converters; Switching frequency; Switching loss; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-1243-0
DOI :
10.1109/PESC.1993.471918
