PORTABLE POWER SUPPLY APPARATUS CAPABLE OF RECEIVING AC OR DC INPUT POWER
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United States of America Patent
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Issued Date -
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app pub date -
Jan 8, 2008
filing date -
Dec 6, 2006
priority date (Note) -
Abandoned
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Abstract
A portable power supply apparatus is provided. The portable power supply apparatus includes an AC-to-DC power adapter, a DC power connector, a DC-to-DC power adapter and an extension power cable. The AC-to-DC power adapter is employed for receiving AC power. The DC power connector is employed for receiving DC power. The DC-to-DC power adapter includes a first DC power input portion, a DC-to-DC power converting circuit and a first DC power output portion. The first DC power input portion is selectively connected to the AC-to-DC power adapter or the DC power connector for receiving a first input DC voltage from the AC-to-DC power adapter or a second input DC voltage from the DC power connector. The DC-to-DC power converting circuit is electrically connected to the first DC power input portion for converting the first input DC voltage or the second input DC voltage into a first DC output voltage. The first DC power output portion is electrically connected to the DC-to-DC power converting circuit for receiving and outputting the first DC output voltage. The extension power cable is connected between the AC-to-DC power adapter and the DC-to-DC power adapter and/or connected to the AC-to-DC power adapter.
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