Flyback power supply with forced primary regulation

Details Flyback power supply with forced primary regulation Flyback power supply with forced primary regulation

2011-08-16

2011-08-16

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S021160, C363S021170

Reexamination Certificate

active

08000115

ABSTRACT:
A flyback converter controller with forced primary regulation is disclosed. An example flyback converter controller includes a secondary control circuit to be coupled to a switched element coupled to a second winding of a coupled inductor of a flyback converter. The secondary control circuit is to be coupled across an output of the second winding to switch the switched element in response to a difference between an actual output value at the output of the second winding and a desired output value to force a current in a third winding of the coupled inductor that is representative of the difference between the actual output value at the output of the second winding and the desired output value. A primary control circuit is also included and is to be coupled to a primary switch coupled to a first winding of the coupled inductor. The primary control circuit is to be coupled to receive the current forced in the third winding by the secondary control circuit. The primary control circuit is coupled to switch the primary switch to regulate an output of the flyback converter coupled to the output of the second winding in response to the forced current.

REFERENCES:
patent: 4996638 (1991-02-01), Orr
patent: 5757627 (1998-05-01), Faulk
patent: 5973945 (1999-10-01), Balakrishnan et al.
patent: 6366480 (2002-04-01), Hosotani et al.
patent: 6532159 (2003-03-01), Nishida et al.
patent: 7518885 (2009-04-01), Baurle et al.
“TOP221-227: TOPSwitch®-II Family—Three-terminal Off-line PWM Switch,” Power Integrations, Inc., Revision D, Jul. 2001, pp. 1-20.
“TL431, TL431A, TL431B, TL432, TL432A, TL432B—Adjustable Precision Shunt Regulators,” Texas Instruments Incorporated, Version SLVS543J, Aug. 2004, Revised Dec. 2005, pp. 1-65.
“DPA422-426: DPA-Switch® Family—Highly Integrated DC-DC converter ICs for Power over Ethernet & Telecom Applications,” Power Integrations, Inc., Revision R, Feb. 2007, pp. 1-36.
“TOP252-262: TOPSwitch®-HX Family—Enhanced EcoSmart®, Integrated Off-line Switcher with Advanced Feature Set and Extended Power Range,” Power Integrations, Inc., Revision E, Oct. 2008, pp. 1-48.

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