Electronic device having a charging voltage regulation circuit
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United States of America Patent
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Jun 5, 2018
Issued Date -
N/A
app pub date -
Aug 1, 2016
filing date -
May 31, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An electronic device includes a battery module, a first switch circuit, a connector, a voltage stabilizer and a controller circuit. The controller circuit is coupled to the connector and the first switch circuit. A configuration channel is implemented between the controller circuit and the connector. When a voltage of the battery module is lower than a threshold voltage and is only connected to a first power source, the first power source provides an activating voltage to the controller circuit through the voltage stabilizer, so as to enable the controller circuit. The connector sends a first detection signal to the controller circuit through the configuration channel. The controller circuit sends a first control signal to turn on the first switch circuit according to the first detection signal, so that the first power source charges the battery module through the first switch circuit.
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