Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Reexamination Certificate
2008-04-01
2008-04-01
Sterrett, Jeffrey (Department: 2838)
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
C320S116000, C320S120000, C320S122000, C320S132000, C320S134000, C320S136000
Reexamination Certificate
active
07352155
ABSTRACT:
An apparatus and method for detecting battery pack voltage is disclosed. The voltage detection apparatus includes a plurality of selectors for providing a cell voltage of a predetermined cell, a detector buffer for receiving the cell voltage of the predetermined cell and supplying an intermediate voltage, a data process circuit for processing the intermediate voltage to acquire a voltage value indicative of the cell voltage of the predetermined cell, wherein each selector includes a plurality of switches and a plurality of level shifters, each switch being controlled by one of the plurality of level shifters to operate with a safe gate-source voltage, source-bulk voltage and reverse-biased body diode.
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Li Guoxing
Wang Wei
Hansen Stuart
O2Micro International Ltd.
Sterrett Jeffrey
Wang Li K.
Wang Law Firm, Inc.
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