Title :
Efficiency improvement by frequency modulation depending on load current for inductor commutation soft-switched PWM inverter
Author :
Nagao, Michihiko ; Fujisawa, Yusuke ; Harada, Koosuke
Author_Institution :
Energy Electron. Lab., Sojo Univ., Kumamoto, Japan
Abstract :
Efficiency of inductor commutation soft-switched PWM inverter is improved by frequency modulation of the carrier signal. In this paper we propose a novel FM technique for more improvement of the efficiency and analyze the loss and efficiency of the inverter. These results are verified experimentally and the effectiveness of FM is shown.
Keywords :
PWM invertors; frequency modulation; power inductors; switching convertors; carrier signal; frequency modulation; inductor commutation; inverter loss; load current; soft-switched PWM inverter efficiency; Circuit noise; Commutation; Filters; Frequency modulation; Inductors; Pulse width modulation inverters; Switched capacitor circuits; Switches; Switching circuits; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
Print_ISBN :
0-7803-8399-0
DOI :
10.1109/PESC.2004.1355172
