Electricity: battery or capacitor charging or discharging – Cell or battery charger structure
Reexamination Certificate
2006-03-21
2008-12-30
Ullah, Akm E (Department: 2838)
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
C307S066000
Reexamination Certificate
active
07471061
ABSTRACT:
A technique is disclosed for more fully utilizing the full voltage range of a battery driven battery output voltage when the battery output voltage is provided through voltage regulation circuitry. More particularly, when the battery output voltage drops to a level that is insufficient to support the desired output of the voltage regulation circuitry, the battery output voltage may be coupled to the voltage output in a manner bypassing at least a portion of the voltage regulation circuitry. In this manner additional voltage range of the battery output voltage may be utilized while still maintaining an output voltage within a desired output voltage range. In one embodiment, such a technique may be utilized in an uninterruptible power supply system.
REFERENCES:
patent: 3489915 (1970-01-01), Engelhardt
patent: 4709202 (1987-11-01), Koenck et al.
patent: 5477124 (1995-12-01), Tamai
patent: 5523671 (1996-06-01), Stewart
patent: 5547775 (1996-08-01), Eguchi et al.
patent: 5576609 (1996-11-01), Brown et al.
patent: 5594320 (1997-01-01), Pacholok et al.
patent: 5598041 (1997-01-01), Willis
patent: 5621301 (1997-04-01), Allen et al.
patent: 5629602 (1997-05-01), Makino
patent: 5652499 (1997-07-01), Morita et al.
patent: 5731686 (1998-03-01), Malhi
patent: 5867007 (1999-02-01), Kim
patent: 5905361 (1999-05-01), Saeki et al.
patent: 5929538 (1999-07-01), O'Sullivan et al.
patent: 5982142 (1999-11-01), Sullivan et al.
patent: 6031356 (2000-02-01), Harada et al.
patent: 6037756 (2000-03-01), Pong
patent: 6137265 (2000-10-01), Cummings et al.
patent: 6153947 (2000-11-01), Rockow et al.
patent: 6163086 (2000-12-01), Choo
patent: 6452362 (2002-09-01), Choo
patent: 6518731 (2003-02-01), Thomas et al.
patent: 6608403 (2003-08-01), Liu et al.
patent: 7327119 (2008-02-01), Stephenson, III
patent: 2002/0030412 (2002-03-01), Lucas et al.
patent: 2004/0195996 (2004-10-01), Nishida
Co-pending Application Entitled “AC-DC Adapter And Battery Charger Integration Scheme”, U.S. Appl. No. 10/628,921, filed Jul. 29, 2003, 25 pgs.
Co-Pending Application Entitled “Systems And Methods For Regulating Pre-Charge Current In A Battery System”, U.S. Appl. No. 11/034,624, filed Jan. 13, 2005, 26 pgs.
Microchip, Pic12F629/675 Data Sheet, 8-Pin Flash-Based 8-Bit CMOS Microcontrollers, 2003, 132 pgs.
Max1935, “500mA, Low-Voltage Linear Regulator in Tiny QFN”, http://www.maxim-ic.com/quick—view2.cfm/qv—pk/3630; printed from Internet on Feb. 4, 2006; 2 pgs.
Micrel, MIC5235, “Ultra-Low Quiescent Current, 150mA, μCap LDO Regulator”, Feb. 2005, 1-9 pps.
Maxim Integrated Products, “500mA, Low-Voltage Linear Regulator in Tiny QFN”, MAX1935, Oct. 2002, 1-10 pps.
Webopedia, “What is UPS?”, http://www.webopedia.com/term/u/ups.html; Printed from the Internet on Feb. 4, 2006, 1 pg.
Dallas Semiconductor Maxim, “Electrical Engineering Glossary Definition For LDO”, http://www.maxim-ic.com/glossary.index.cfm/ac/v/id/194/tm/Ido/in/en; Printed from the Internet on Oct. 21, 2005, 1 pg.
Hijazi Mohammed
Luo Shiguo
Shah Shreya M.
Dell Products L.P.
Diao M'Baye
O'Keefe, Egan Peterman & Enders LLP
Ullah Akm E
LandOfFree
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