Single floating battery cell voltage level translator circuitry

Details Single floating battery cell voltage level translator circuitry Single floating battery cell voltage level translator circuitry

2011-08-16

2011-08-16

Tso, Edward (Department: 2858)

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

C324S433000, C324S435000, C320S112000, C320S118000, C320S120000, C320S124000, C320S125000

Reexamination Certificate

active

07999554

ABSTRACT:
Voltage translator circuitry may include a path including a first resistor, a current controlling device, and a second resistor coupled in series. The voltage translator circuitry may further include an operational amplifier having a positive supply terminal to accept a positive supply voltage and a negative supply terminal to accept a negative supply voltage, neither the positive or negative supply voltage at ground voltage. The first resistor may further be coupled to a positive terminal of the battery cell to be monitored. The operational amplifier may have an input coupled to a negative terminal of the battery cell to be monitored. The voltage translator circuitry may further include an output terminal coupled to a node of the path between the current controlling device and the second resistor. The output terminal may be configured to provide the ground referenced cell voltage for the battery cell.

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