Title :
1.5 kW two switch forward ZCZVS converter using primary side clamping
Author :
Ghodke, Dharrnraj V. ; Muralikrishnan, K.
Author_Institution :
Laser Syst. Eng. Div., Centre for Adv. Technol., Indore, India
Abstract :
This paper presents a soft switching two transistor forward converter with a clamping circuit connected in the primary side of the transformer. This clamping circuit will reduce the reverse recovery effects of the output rectifying diodes, increasing the overall efficiency. Moreover the switching devices are turned-on with zero current switching (ZCS) and turned-off with zero voltage switching (ZVS), further increasing efficiency and reducing EMI, and so are suitable for kW power range application. Theoretical analyses of the converter along with experimental results for a 150 V, 10 A, 100 kHz experimental prototype is presented.
Keywords :
electromagnetic interference; interference suppression; power convertors; rectifying circuits; switching circuits; transformers; 1.5 kW; 1.5 kW two switch forward ZCZVS converter; 10 A; 100 kHz; 150 V; EMI reduction; ZCS; ZVS; clamping circuit; efficiency; output rectifying diodes; primary side clamping; reverse recovery effects reduction; soft switching; switching devices; transformer; two transistor forward converter; zero current switching; zero voltage switching; Capacitance; Clamps; Diodes; Inductance; Inductors; Magnetic switching; Power transformers; Switches; Switching circuits; Switching converters;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1022567
