Title :
Charge control for zero-voltage-switching multiresonant converter
Author :
Tang, Wei ; Leu, Ching-Shan ; Lee, Fred C.
Author_Institution :
AT&T Bell Labs., Mesquite, TX, USA
fDate :
3/1/1996 12:00:00 AM
Abstract :
The operation of zero-voltage-switching multi-resonant power converters (ZVSMRCs) limits the use of peak current-mode control. The charge control technique is found applicable to ZVSMRCs for improving dynamic performance. Charge control compares the total charge of the switch current to the control voltage to modulate the switching frequency. Since the charge of the switch current of the forward ZVSMRCs is proportional to the input voltage, charge control provides a fast inner loop and offers excellent transient response. Charge control also provides the possibility to achieve current sharing for ZVSMRC parallel applications
Keywords :
control system analysis; control system synthesis; electric current control; resonant power convertors; switching circuits; transient response; ZVS; charge control technique; control design; control voltage; current sharing; dynamic performance; fast inner loop; multi-resonant power converter; parallel applications; peak current-mode control; switch current total charge; switching frequency modulation; transient response; zero-voltage-switching; Circuits; Filters; Frequency modulation; Inductors; Pulse amplifiers; Pulse width modulation converters; Switches; Switching converters; Voltage control; Voltage-controlled oscillators;
Journal_Title :
Power Electronics, IEEE Transactions on
