BATTERY PROTECTION CIRCUIT FOR LITHIUM CABON MONOFLUORIDE BATTERY
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United States of America Patent
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Issued Date -
Oct 2, 2008
app pub date -
Mar 27, 2008
filing date -
Mar 27, 2007
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Abandoned
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Abstract
A protection circuit for a primary battery pack provides the battery pack with reverse charge protection. The protection circuit features a metal oxide semiconductor field effect transistor (MOSFET) with a steady state source to drain voltage. The source to drain voltage is controlled through a feedback loop that includes an operational amplifier. The MOSFET is configured in series with one or more battery cells allowing current to flow from the cells and preventing current from flowing to the cells. The MOSFET provides reverse charge protection with a small forward voltage drop and a small reverse charge leakage current.
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