Title :
A PWM method for reduction of switching loss in a full-bridge inverter
Author :
Lai, Ray-Shyang ; Ngo, Khai D T
Author_Institution :
Dept. of Electr. Eng., Florida Univ., Gainesville, FL, USA
fDate :
5/1/1995 12:00:00 AM
Abstract :
This paper presents the “hybrid pulsewidth modulation” (HPWM) method which requires only two of the four switches in a full-bridge inverter to be pulsewidth-modulated at high frequency, thus significantly reducing the switching losses in the other two switches. For triangular carriers, HPWM has the same frequency spectrum and switching losses as the conventional unipolar PWM (UPWM). A low-frequency model for a fast-switching HPWM full-bridge inverter with high-quality output is described, and is substantiated by experimental data
Keywords :
PWM invertors; bridge circuits; losses; switching circuits; PWM method; fast-switching; full-bridge inverter; high frequency; high-quality output; hybrid pulsewidth modulation; low-frequency model; switches; switching loss reduction; triangular carriers; unipolar PWM; Active filters; Frequency modulation; Power harmonic filters; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Switches; Switching frequency; Switching loss; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
