Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2009-01-28
2011-12-27
Zhang, Jue (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S021150
Reexamination Certificate
active
08085558
ABSTRACT:
A resonant converter includes a square wave generator including a first switch and a second switch, and generating a first square wave corresponding to an input voltage by alternately turning on/off the first and second switches; a resonator including a first coil of a primary coil of a transformer, and generating a resonance waveform corresponding to the first square wave; and an output unit including a second coil of a secondary coil of the transformer, and outputting a voltage corresponding to a current generated in the second coil corresponding to the resonance waveform. The square wave generator includes a pulse frequency modulation controller for turning on/off the first and second switches, comparing a first voltage linearly increased while the second switch maintains the turn-on state and a second voltage corresponding to an integration value on the time of the current flowing to the second switch when the second switch is turned off, and changing on/off drive frequencies of the first and second switches according to a comparison result. Therefore, a resonant converter driven with safety is realized.
REFERENCES:
patent: 6018467 (2000-01-01), Majid et al.
patent: 6087782 (2000-07-01), Majid et al.
Fairchild Semiconductor, Application Note AN-4151, Half-Bridge LLC Resonant Converter Design using FSFR-Series Fairchild Power Switch (FPS), Oct. 2007, 1.0.0, pp. 1-17.
Fairchild Korea Semiconductor Ltd.
Sidley Austin LLP
Zhang Jue
LandOfFree
Resonant converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resonant converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4256464