Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2008-03-27
2010-11-09
Vu, Bao Q (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S016000, C363S021030, C363S021120
Reexamination Certificate
active
07830676
ABSTRACT:
A power supply apparatus and method of regulating is provided. A converter circuit includes a primary switching element and an auxiliary switching element. The auxiliary switching element is for transferring a reflected voltage signal. A transformer includes a primary and a secondary, the primary is coupled with the converter circuit. The primary and the secondary each comprise a single winding. An output rectifier circuit is coupled with the secondary of the transformer. A resonant circuit is included in the converter circuit and is coupled with the primary. The resonant circuit includes one or more resonance capacitors that are configured for providing a transformer resonance. The transformer resonance comprises the reflected voltage signal, the capacitance of the one or more resonance capacitors and a parasitic capacitance of the transformer. The reflected voltage signal is reflected from the secondary to the primary. A current feedback circuit is coupled between the primary and a controller. A virtual output current feedback loop is provided for regulating an output current using the reflected voltage signal.
REFERENCES:
patent: 4051425 (1977-09-01), Smith
patent: 4712160 (1987-12-01), Sato et al.
patent: 4788626 (1988-11-01), Neidig et al.
patent: 4841220 (1989-06-01), Tabisz et al.
patent: 4857822 (1989-08-01), Tabisz et al.
patent: 4866367 (1989-09-01), Ridley et al.
patent: 4893227 (1990-01-01), Gallios et al.
patent: 4899256 (1990-02-01), Sway-Tin
patent: 4975821 (1990-12-01), Lethellier
patent: 5101322 (1992-03-01), Ghaem et al.
patent: 5164657 (1992-11-01), Gulczynski
patent: 5235491 (1993-08-01), Weiss
patent: 5262932 (1993-11-01), Stanley et al.
patent: 5295044 (1994-03-01), Araki et al.
patent: 5490052 (1996-02-01), Yoshida et al.
patent: 5565761 (1996-10-01), Hwang
patent: 5565781 (1996-10-01), Dauge
patent: 5592128 (1997-01-01), Hwang
patent: 5673185 (1997-09-01), Albach et al.
patent: 5712772 (1998-01-01), Telefus et al.
patent: 5742151 (1998-04-01), Hwang
patent: 5747977 (1998-05-01), Hwang
patent: 5798635 (1998-08-01), Hwang et al.
patent: 5804950 (1998-09-01), Hwang et al.
patent: 5811895 (1998-09-01), Suzuki et al.
patent: 5818207 (1998-10-01), Hwang
patent: 5870294 (1999-02-01), Cyr
patent: 5894243 (1999-04-01), Hwang
patent: 5903138 (1999-05-01), Hwang et al.
patent: 5905369 (1999-05-01), Ishii et al.
patent: 5923543 (1999-07-01), Choi
patent: 6058026 (2000-05-01), Rozman
patent: 6069803 (2000-05-01), Cross
patent: 6091233 (2000-07-01), Hwang et al.
patent: 6160725 (2000-12-01), Jansen
patent: 6272015 (2001-08-01), Mangtani
patent: 6282092 (2001-08-01), Okamoto et al.
patent: 6323627 (2001-11-01), Schmiederer et al.
patent: 6344980 (2002-02-01), Hwang et al.
patent: 6366483 (2002-04-01), Ma et al.
patent: 6396277 (2002-05-01), Fong et al.
patent: 6407514 (2002-06-01), Glaser et al.
patent: 6469914 (2002-10-01), Hwang et al.
patent: 6469980 (2002-10-01), Takemura et al.
patent: 6483281 (2002-11-01), Hwang
patent: 6531854 (2003-03-01), Hwang
patent: 6541944 (2003-04-01), Hwang
patent: 6605930 (2003-08-01), Hwang
patent: 6657417 (2003-12-01), Hwang
patent: 6671189 (2003-12-01), Jansen et al.
patent: 6674272 (2004-01-01), Hwang
patent: 6958920 (2005-10-01), Mednik et al.
patent: 7038406 (2006-05-01), Wilson
patent: 7047059 (2006-05-01), Avrin et al.
patent: 7286376 (2007-10-01), Yang
patent: 7639520 (2009-12-01), Zansky et al.
patent: 2002/0011823 (2002-01-01), Lee
patent: 2003/0035303 (2003-02-01), Balakrishnan et al.
patent: 2004/0228153 (2004-11-01), Cao et al.
patent: 2005/0105224 (2005-05-01), Nishi
patent: 2005/0281425 (2005-12-01), Greuet et al.
The Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration; International Application No. PCT/US2009/065300, International Filing Date Nov. 20, 2009, Authorized Officer Blaine R. Copenheaver, 11 pages.
Notice of Allowability, U.S. Appl. No. 12/079,663, Mark Telefus et al., 1 page.
EE Times.com-“Team Claims Midrange Wireless Energy Transfer”, by R. Colin Johnson, 4 pages, Nov. 6, 2007.
EE Times.com-“Wireless Beacon Could Recharge Consumer Devices”, by R. Colin Johnson, 3 pages, Nov. 6, 2007.
“New Architectures for Radio-Frequency dc/dc Power Conversion”, Juan Rivas et al, Laboratory for Electromagnetic and Electronic Systems, Massachusetts Institute of Technology, Room 10-171 Cambridge, MA 02139, pp. 4074-4084, Jan. 2004.
Scollo, P. Fichera R., “Electronic Transformer for a 12V Halogen Lamp”, Jan. 1999, ST Microelectronics pp. 1-4.
Hang-Seok Choi et al., Novel Zero-Voltage and Zero-Current-Switching (ZVZCS) Full-Bridge PWM Converter Using Coupled Output Inductor, Sep. 2002 IEEE, pp. 641-648.
Office Action; U.S. Appl. No. 12/079,663, Filing Date Mar. 27, 2008, mailed on Feb. 4, 2010, 11 pages.
Office Action; U.S. Appl. No. 12/079,815, Filing Date Mar. 27, 2008, mailed on Jan. 12, 2010, 12 pages.
Notice of Allowance, U.S. Appl. No. 12/079,815, filing date: Mar. 27, 2008, Mark Telefus et al., 10 pages.
Roohparvar Farza Bob
Telefus Mark
Flextronics AP LLC
Haverstock & Owens LLP
Vu Bao Q
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