| 摘要 |
A charger includes a direct current (DC) converter and an alternating current (AC) converter. The DC converter includes a DC input port, a conversion circuit, a transmission port for inputting a second voltage, an output port, and a switch for selectively outputting the first voltage or the second voltage. The AC converter has an AC input port, an AC conversion circuit for transforming an AC power source to the second voltage, and a power port corresponding to the transmission port for outputting the second voltage to the transmission port. The DC converter and the AC converter are capable of engaging with each other such that the power port is connected to the transmission port, and the charger can provide power via the output port provided by the AC power source or the DC power source.
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