Title :
A novel minimum-voltage active-clamping PFC controller
Author :
Song, Qin ; Xiaobo, Wu ; Xiaolang, Yan
Author_Institution :
Inst. of VLSI Design, Zhejiang Univ., China
Abstract :
A novel minimum-voltage active-clamping (MVAC) PFC controller was developed, which is capable of providing effective control scheme to the MVAC PFC converter to suppress the reverse-recovery current of the boost diode and minimize the voltage stress on switch devices. The corresponding control strategy was proposed and implemented in its design. To reduce the ripple currents in output capacitor, the leading-edge modulation was employed. And programmable turn-on delay time was adopted to realize zero-voltage-switching (ZVS) operation. The IC was designed and simulated in 1.5 μm BCD (bipolar-CMOS-DMOS) process. The simulation results showed that the expected specifications were achieved.
Keywords :
CMOS integrated circuits; bipolar integrated circuits; integrated circuit design; power convertors; power factor correction; zero voltage switching; 1.5 micron; BCD process; MVAC PFC converter; bipolar-CMOS-DMOS process; boost diode; leading-edge modulation; minimum-voltage active-clamping PFC controller; output capacitor; programmable turn-on delay time; reverse-recovery current; ripple currents; switch devices; voltage stress; zero-voltage-switching operation; Control systems; Delay effects; Diodes; Pulse width modulation; Resonance; Stress control; Switches; Switching circuits; Voltage control; Zero voltage switching; Active-clamping; Leading-edge modulation; PFC controller; Reverse-recovery; ZVS;
Conference_Titel :
ASIC, 2005. ASICON 2005. 6th International Conference On
Print_ISBN :
0-7803-9210-8
DOI :
10.1109/ICASIC.2005.1611327
