Flyback power supply with forced primary regulation

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

2011-01-25

2011-01-25

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S021160, C363S021170

Reexamination Certificate

active

07876583

ABSTRACT:
A flyback converter with forced primary regulation is disclosed. An example flyback converter includes a coupled inductor including a first winding, a second winding, and a third winding. The first winding is coupled to an input voltage and the second winding is coupled to an output of the power converter. A switched element is coupled to the second winding. A secondary control circuit is coupled to the switched element and the second winding. The secondary control circuit is coupled to switch the switched element in response to a difference between a desired output value and an actual output value to force a current in the third winding that is representative of the difference between the desired output value and the actual output value. A primary switch is coupled to the first winding. A primary control circuit is coupled to the primary switch and the third winding. The primary control circuit is coupled to switch the primary switch to regulate the output of the power converter 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.
“TOP221-227: TOPSwitch®-II Family—Three-terminal Off-line PWM Switch,” Power Integrations, Inc., Revision D, Jul. 2001, pp. 1-20.
“TL431, TL431A, TL431 B, 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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