Resonance type switching power source

Details Resonance type switching power source Resonance type switching power source

1999-04-01

2000-03-28

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 25, 363 98, 363134, H02M 3335

Patent

active

060439939

ABSTRACT:
In a switching power source, by alternately turning on first and second MOS transistors, a switching current flows to a primary winding of a transformer, and an alternate current is transferred to a secondary side. The alternate voltage caused in a secondary winding is full-wave rectified by first and second diodes. Resonance elements (capacitor and coil) are connected to a tertiary winding coupled to an isolation transfer, thereby enabling the primary side to be set into a resonated state and to be set to a current resonance type switching power source. Since a leakage inductance of the transformer is not set to a resonance element, an interval between the windings of the isolation transformer can be closely coupled. Since a resonance current is not directly turned on/off, a peak value of the primary current is decreased and switching loss and loss due to an on-resistance can be decreased. The efficiency of a current resonance type switching power source is thus improved.

REFERENCES:
patent: 4187458 (1980-02-01), Milberger et al.
patent: 4631652 (1986-12-01), Wendt
patent: 4796173 (1989-01-01), Steigerwald
patent: 5151852 (1992-09-01), Jacobson et al.
patent: 5159541 (1992-10-01), Jain
patent: 5177675 (1993-01-01), Archer
patent: 5729444 (1998-03-01), Perol

Affiliated with

Also associated with

Rating

Resonance type switching power source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Resonance type switching power source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonance type switching power source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1331609