Battery pack and electric device
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Feb 28, 2014
filing date -
Mar 22, 2013
priority date (Note) -
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Abstract
The present invention reduces or shuts off output electric power of a battery pack, which is connected to an electric device, depending on an abnormality. According to the present invention, a battery pack is detachably connected to an electric-device main body having a switch, and includes a first electric-power control circuit that outputs a first signal to the electric-device main body when the switch is operated, the first signal for allowing supply of electric power to the electric-device main body, a second switching element provided on an electric-power supply path that supplies electric power to the electric-device main body, and a second electric-power control circuit that outputs a second signal to the second switching element if an abnormality occurs in the battery pack, the second signal for reducing or shutting off the electric power supplied to the electric-device main body.
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