Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Reexamination Certificate
2006-07-04
2006-07-04
Berhane, Adolf Deneke (Department: 2838)
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
C320S145000, C320S161000
Reexamination Certificate
active
07071698
ABSTRACT:
A power supply apparatus according to the present invention includes a battery and a voltage detection circuit for detecting the voltage of the battery. The voltage detection circuit includes a differential amplifier which has a first input terminal for receiving a voltage based on the voltage of the battery and a second input terminal for receiving a predetermined triangular wave and outputs a rectangular wave with a pulse width modulated according to the voltage based on the voltage of the battery and a predetermined offset voltage, and an offset circuit which supplies the offset voltage to one of the first input terminal and the second input terminal so that the differential amplifier outputs a particular rectangular wave according to the offset voltage even when the voltage based on the voltage of the battery which is supplied to the first input terminal is 0.
REFERENCES:
patent: 4187536 (1980-02-01), Govaert et al.
patent: 4275344 (1981-06-01), Mori et al.
patent: 4742296 (1988-05-01), Petr et al.
patent: 6411098 (2002-06-01), Laletin
patent: 6486635 (2002-11-01), Matsuda et al.
patent: 6803766 (2004-10-01), Kobayashi et al.
patent: 2001-330653 (2001-11-01), None
Furukawa Kimihiko
Seo Kazuhiro
Takahashi Yoshiaki
Berhane Adolf Deneke
McDermott Will & Emery LLP
Piggush Aaron
Sany Electric Co., Ltd.
LandOfFree
Power supply apparatus for detecting battery voltage and the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power supply apparatus for detecting battery voltage and the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply apparatus for detecting battery voltage and the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3550758