Title :
Analysis and design of a novel nondissipative active clamp for forward converters
Author :
Karvelis, G.A. ; Manolarou, M.D. ; Malatestas, P. ; Manias, S.N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
A novel active clamp topology for forward converters is presented and analyzed in detail in this paper. The proposed circuit overcomes the drawbacks of the already existing reset techniques, since it utilizes the magnetizing energy that was formerly being dissipated in the clamp resistor. The stored energy supplies a second auxiliary output but can also be driven to the main output, thus increasing the efficiency of the converter
Keywords :
DC-DC power convertors; active networks; equivalent circuits; field effect transistor switches; magnetisation; power MOSFET; power semiconductor switches; resistors; switching circuits; clamp resistor magnetizing energy; efficiency improvement; forward power converters; nondissipative active clamp design; reset techniques; second auxiliary output; Circuit topology; Clamps; Equations; Flyback transformers; Magnetic circuits; Power semiconductor switches; Semiconductor diodes; Switched capacitor circuits; Switching circuits; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual
Conference_Location :
Galway
Print_ISBN :
0-7803-5692-6
DOI :
10.1109/PESC.2000.879926
