Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Reexamination Certificate
2004-09-01
2009-02-17
Ullah, Akm E (Department: 2838)
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
C324S426000, C320S116000, C320S118000
Reexamination Certificate
active
07492160
ABSTRACT:
A device and method enable measuring individual cell voltages of cells in a cell stack of an energy accumulator. To this end, a series circuit formed of two diodes is connected in parallel to each cell, the nodes between these diodes are connected to a changeover switch via a respective capacitor and to a differential amplifier via the changeover switch, and an alternating current of a specified frequency and amplitude is fed into these capacitors while generating an alternating voltage corresponding to the cell voltage. This alternating voltage, after rectifying, becomes a direct voltage to ground value for the cell voltage.
REFERENCES:
patent: 4079303 (1978-03-01), Cox
patent: 5063340 (1991-11-01), Kalenowsky
patent: 5545933 (1996-08-01), Okamura et al.
patent: 0 432 639 (1991-06-01), None
patent: 0 657 745 (1995-06-01), None
patent: 9 236624 (1997-09-01), None
patent: 10 312829 (1998-11-01), None
“An Op Amp Transfer Circuit to Measure Voltages in Battery Strings”, (Wang, et al.), Journal of Power Sources 109, dated Jan. 14, 2002, pp. 253-261.
Greenberg Laurence A.
Locher Ralph E.
Muralidar Richard V
Siemens Aktiengesellschaft
Stemer Werner H.
LandOfFree
Device and method for measuring individual cell voltages in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for measuring individual cell voltages in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for measuring individual cell voltages in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4074643