Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2009-04-22
2010-10-12
Behm, Harry (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C323S902000, C323S907000
Reexamination Certificate
active
07813150
ABSTRACT:
Techniques to compensate for parameter variations in a feedback circuit are disclosed. In one embodiment, a regulator circuit includes an energy source coupled to output a generated current in response to a control current. A feedback resistor is coupled to an output of the regulator circuit. The feedback resistor is coupled to conduct a feedback current responsive to the output of the regulator circuit. A current amplifier is coupled to the feedback resistor to generate the control current in response to the feedback current. A compensation network is coupled to the current amplifier to adjust the control current in response to an extrinsic parameter of the regulator circuit. The compensation network includes a transistor and first, second and third resistors. The first resistor is coupled between the feedback resistor and a collector of the transistor. The second resistor coupled between the collector and the base of the transistor. The third resistor coupled between the base and an emitter of the transistor.
REFERENCES:
patent: 4749889 (1988-06-01), Lagoni et al.
patent: 4801980 (1989-01-01), Arai et al.
patent: 4847547 (1989-07-01), Eng, Jr.
patent: 5408402 (1995-04-01), Nonnenmacher
patent: 5515263 (1996-05-01), Otake et al.
patent: 5675485 (1997-10-01), Seong
patent: 5786685 (1998-07-01), Lange et al.
patent: 5933334 (1999-08-01), Sula
patent: 5995384 (1999-11-01), Majid et al.
patent: 6023185 (2000-02-01), Galipeau et al.
patent: 6300818 (2001-10-01), Mao
patent: 6344770 (2002-02-01), Zha et al.
patent: 7034618 (2006-04-01), Barabash
patent: 2003/0021129 (2003-01-01), Balakrishnan et al.
patent: 42 10 785 (1993-09-01), None
patent: 52-057791 (1977-05-01), None
patent: 60187869 (1985-09-01), None
patent: 62-239865 (1987-10-01), None
patent: 08080037 (1996-03-01), None
patent: 2002-136123 (2002-05-01), None
European Search Report—Application No. EP 05 25 4366, dated Jan. 6, 2006.
European Examination Report—Application No. EP 05 25 4366, dated May 7, 2008.
European Search Report—Application No. EP 07 02 4070, dated Mar. 28, 2008.
Cuadra Jason E.
Odell Arthur B.
Polivka William M.
Behm Harry
Blakely , Sokoloff, Taylor & Zafman LLP
Power Integrations, Inc.
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