Auxiliary battery system
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United States of America Patent
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May 29, 2012
Grant Date -
Jan 19, 2012
app pub date -
Jul 19, 2010
filing date -
Jul 19, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An auxiliary power system for an electrical load in a vehicle electrical system includes an auxiliary battery, a thermal transducer in physical contact with the auxiliary battery, a charger circuit for controlling the charging of the battery in response to at least a temperature of the auxiliary battery, and an output power delivery circuit for providing power to an electrical load during normal and emergency conditions. The auxiliary power system is housed in a thermally-conductive enclosure that is in thermal communication with the charger circuit and the power delivered circuit. The power delivery circuit selectively delivers power to the electrical output from both an electrical input terminal and from the battery based on the magnitude of a voltage available on the electrical input terminal.
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