Electricity: battery or capacitor charging or discharging – Capacitor charging or discharging – For large capacitance
Reexamination Certificate
2006-09-19
2006-09-19
Easthom, Karl (Department: 2838)
Electricity: battery or capacitor charging or discharging
Capacitor charging or discharging
For large capacitance
C320S166000, C307S109000, C318S376000, C318S375000, C318S377000, C318S362000
Reexamination Certificate
active
07109686
ABSTRACT:
This invention is a system and a method that uses the braking resistor, commonly used and available in electrically or hybrid-electrically propelled vehicles, to limit the precharge current during the startup of a high power ultracapacitor pack energy storage device and/or safely and rapidly discharge an ultracapacitor pack for maintenance work or storage to lengthen the life of the individual ultracapacitor cells and, correspondingly, the whole pack. The use of the braking resistor for precharging an ultracapacitor energy storage pack is an effective and less expensive method compared to other methods such as a separate DC-to-DC converter. This method includes the control logic sequence to activate and deactivate switching devices that perform the connections for the charging and discharging current paths.
REFERENCES:
patent: 5914542 (1999-06-01), Weimer et al.
patent: 6317343 (2001-11-01), Okamura et al.
patent: 6615118 (2003-09-01), Kumar
patent: 6714391 (2004-03-01), Wilk et al.
patent: 6737847 (2004-05-01), Watanabe et al.
patent: 6777909 (2004-08-01), Aberle et al.
patent: 6844704 (2005-01-01), Wilk et al.
patent: 2002/0195821 (2002-12-01), Wacknov
patent: 2004/0080165 (2004-04-01), Geis et al.
patent: 2005/0041370 (2005-02-01), Wilk et al.
Holl Eugen
Ruppert Swen O.
Schulte Juergen J.
Beuerle Stephen C.
Boateng Alexis
Easthom Karl
ISE Corporation
Procopio Cory Hargreaves & Savitch LLP
LandOfFree
System and method for precharging and discharging a high... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for precharging and discharging a high..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for precharging and discharging a high... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3591919