Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-04-02
2010-11-09
Patel, Rajnikant B (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C363S021040
Reexamination Certificate
active
07830130
ABSTRACT:
This invention relates to control techniques and controllers for resonant discontinuous forward power converters (RDFCs).A method of controlling a resonant discontinuous forward converter (RDFC), said converter including a transformer with primary and secondary matched polarity windings and a switch to, in operation, cyclically switch DC power to said primary winding of said transformer, said converter further having a DC output coupled to said secondary winding of said converter, said method comprising: sensing a primary winding signal during an on period of said switch, said primary winding signal representing a current in said primary winding; comparing said sensed primary winding signal with a threshold value; and controlling one or both of an on and off duration of said switch in response to said comparison.
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de Silva Devarahandi Indika Mahesh
Garner David M.
Jacques Russell
Lalithambika Vinod A.
McKay Catriona
Cambridge Semiconductor Limited
Patel Rajnikant B
Schwegman Lundberg & Woessner, P.A.
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