| 摘要 |
A battery charger comprises charging circuitry for providing a battery charging voltage responsive to an input voltage. First circuitry provides both over-voltage protection and an input voltage bypass signal responsive to the input voltage. The first circuitry includes a low impedance switch having a resistance of at least 500 mOmega for connecting the input voltage to an output voltage node. The first circuit also includes a higher impedance switch having a resistance of at least 1000 mOmega for providing the input voltage as a voltage bypass signal.
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