Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2006-12-07
2009-11-10
Han, Jessica (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S041000
Reexamination Certificate
active
07616459
ABSTRACT:
A primary side controlled power converter having a voltage sensing means coupled to a transformer of the power converter and configured to provide a voltage feedback waveform representative of an output of the transformer is provided. A primary switching circuit operates to control energy storage of a primary side of the transformer. The primary switching circuit is operable during an on time and inoperable during an off time. The on and off time is switched at a system frequency. A feedback amplifier generates an error signal indicative of a difference between the voltage feedback waveform and a reference voltage. A sample and hold circuit samples the error signal at a periodic frequency during the off time. An error signal amplifier is configured to provide the sampled value to the primary switching circuit wherein the primary switching circuit controls the transformer and thereby regulates an output of the power converter.
REFERENCES:
patent: 5438499 (1995-08-01), Bonte et al.
patent: 5901051 (1999-05-01), Takahashi et al.
patent: 6249876 (2001-06-01), Balakrishnan et al.
patent: 6636084 (2003-10-01), Sarraj
patent: 7102899 (2006-09-01), Reinhard et al.
patent: 7199745 (2007-04-01), Tachibana et al.
patent: 7307390 (2007-12-01), Huynh et al.
patent: 7388764 (2008-06-01), Huynh et al.
Chen Mingliang
Huynh Steven
Yu Mingfan
Active-Semi, Inc.
Han Jessica
Imperium Patent Works
Spano Joseph S.
LandOfFree
System and method for a primary feedback switched mode power... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for a primary feedback switched mode power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for a primary feedback switched mode power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4128956