Zero-current transition PWM converters

Details Zero-current transition PWM converters Zero-current transition PWM converters

1994-06-17

1996-01-23

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

363 21, 363 16, 323282, H02M 3335

Patent

active

054867525

ABSTRACT:
A zero-current transition pulse-width modulated (ZCT-PWM) d.c.-d.c. converter allows minority-carrier semiconductor devices such as, for example, bipolar junction transistors (BJTs), insulated gate bipolar transistors (IGBTs), MOSFET controlled thyristors (MCTs), and gate turn-off thyristors (GTOs), to be used as switches for high-power, high frequency applications. The ZCT-PWM converter comprises a shunt resonant branch inserted into a conventional PWM converter circuit. The resonant branch comprises a resonant inductor (Lr), a resonant capacitor (Cr), an auxiliary switch (S1), and an auxiliary diode (D1). The resonant branch is only active during a relatively short switching time in order to create a zero-current switch condition for the main pulse-modulating switch (S) without substantially increasing voltage or current stresses.

REFERENCES:
patent: 4857822 (1994-08-01), Tabisz et al.
patent: 5262930 (1993-11-01), Hua et al.
patent: 5287261 (1994-02-01), Ehsani

Affiliated with

Also associated with

Rating

Zero-current transition PWM converters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zero-current transition PWM converters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zero-current transition PWM converters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1506834