Title :
A partial-resonant tapped-inductor converter with an auxiliary switch
Author :
Nishijima, Kimihiro ; Inoue, Takafumi ; Harada, Koosuke ; Nagao, Michihiko ; Nabeshima, Takashi ; Sato, Terukazu
Author_Institution :
Oita Univ., Oita, Japan
Abstract :
A partial-resonant tapped-inductor converter with an auxiliary switch is proposed. The circuit construction is the same as a conventional tapped-inductor converter with active clamp circuit, but the drive timing for the auxiliary switch is different from the conventional one. As a result the output stability is improved as compared with the conventional active clamp one. Furthermore, zero current switching is achieved by a partial resonant with an auxiliary capacitor and the leakage inductance of the tapped-inductor during the on period of the auxiliary switch. The operating and performance of the proposed approach were verified experimentally by a laboratory prototype of 24 V input to 1.0 V output at 600 kHz. As a result, 2% improvement of efficiency is achieved.
Keywords :
active networks; inductors; power convertors; switches; zero current switching; active clamp circuit; auxiliary capacitor; auxiliary switch; drive timing; frequency 600 kHz; leakage inductance; partial-resonant tapped-inductor converter; voltage 24 V to 1.0 V; zero current switching; Capacitors; Circuit stability; Clamps; Inductance; Resonance; Switches; Switching circuits; Switching converters; Timing; Zero current switching; DC power supply; Resonant converter; Soft switching; ZCS converters;
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
