Electric power conversion systems – Current conversion – With means to selectively provide d.c. of either polarity
Reexamination Certificate
2005-03-09
2009-11-10
Berhane, Adolf (Department: 2838)
Electric power conversion systems
Current conversion
With means to selectively provide d.c. of either polarity
C363S056030, C363S132000
Reexamination Certificate
active
07616462
ABSTRACT:
A control circuit for a switching power supply reacts to an over current condition in the switching power supply to bring its operating point to a safe condition. The control circuit senses both the direction and the magnitude of the load current in the switching power supply, and then uses this sensed information to control the active power switches in the switching power supply. In an over current condition, the switches are controlled to actively drive the load current toward zero, even if the sensed information is delayed or heavily filtered, or the switch signals from the control circuit are delayed in reaching the switches. The resulting operation of the switching power supply is more resistant to abnormal load conditions and is maintained in the presence of transient short circuits or arcs. The switching power supply hardware is also better protected.
REFERENCES:
patent: 4562386 (1985-12-01), Goff et al.
patent: 4633358 (1986-12-01), Nagano
patent: 5245523 (1993-09-01), Juzswik
patent: 5303139 (1994-04-01), Mark
patent: 5309347 (1994-05-01), Poma et al.
patent: 5428522 (1995-06-01), Millner et al.
patent: 5773991 (1998-06-01), Chen
patent: 6119046 (2000-09-01), Sporer
patent: 6150628 (2000-11-01), Smith et al.
patent: 6329801 (2001-12-01), Zuniga et al.
patent: 6351359 (2002-02-01), Jaeger
patent: 6552296 (2003-04-01), Smith et al.
patent: 6735099 (2004-05-01), Mark
patent: 6815633 (2004-11-01), Chen et al.
patent: 6856119 (2005-02-01), Crawford
patent: 6859087 (2005-02-01), Galli et al.
patent: 7031124 (2006-04-01), Takahashi
patent: 2004/0109276 (2004-06-01), Mendenhall
patent: 2004/0125620 (2004-07-01), Yamashita
patent: 2004/0201937 (2004-10-01), Yoshida
patent: 2004/0227498 (2004-11-01), Okada
patent: 0 259 005 (1988-03-01), None
patent: 04 281342 (1992-10-01), None
Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration of International Patent Application No. PCT/US2005/007892, (Nov. 7, 2005).
L. H. Dixon, Jr., “Switching Power Supply Topology Review,” Unitrode Corporation and Texas Instruments Inc., Copyright 2001, 14 pages.
Bystryak Ilya
Millner Alan Roy
Behm Harry
Berhane Adolf
MKS Instruments Inc.
Proskauer Rose LLP
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