Battery charger with thermal runaway protection
Patent
·
OSTI ID:6550509
A battery charging circuit is described comprising: a power input for accepting an AC energy source; a power output connected to a battery to be charged and supplying the regulated voltage to the battery; and a rectifier charging circuit for supplying current at the regulated voltage to the power output, and including a regulation control for controlling the voltage; a temperature sensing device located proximate to the battery; scaling circuitry for converting a value of the temperature sensing device to a voltage magnitude; a voltage output of the scaling circuitry connected to the regulation control; wherein the improvement comprises; voltage sensing leads connected to terminals of the battery being charged and to the rectifier charging circuit; circuitry included in series with one of the voltage sensing leads for injecting a voltage into a path of the voltage sensing leads; whereby the voltage injected into the path of the voltage sensing leads alters the charging voltage supplied by the rectifier charging circuit to the battery to compensate for a temperature sensed by the temperature sensing device.
- Assignee:
- AT and T Bell Laboratories, Murray Hill, NJ (United States)
- Patent Number(s):
- A; US 5214370
- Application Number:
- PPN: US 7-759357
- OSTI ID:
- 6550509
- Country of Publication:
- United States
- Language:
- English
Similar Records
Battery charger and power supply circuitry
Battery charger
Battery charger
Patent
·
Mon Mar 22 23:00:00 EST 1982
·
OSTI ID:5388760
Battery charger
Patent
·
Tue Aug 19 00:00:00 EDT 1986
·
OSTI ID:5287734
Battery charger
Patent
·
Mon Mar 02 23:00:00 EST 1987
·
OSTI ID:6740985