Patent ID: 6842356

Claim:
A FireWire/USB based charger comprising: a plug seat comprising a casing inside which a shunting/regulating circuit board is fixed, the circuit board further comprising: a pair of cigarette-lighting receptacle connecting wires, having a cigarette-lighting plug at one end for plugging into an on-vehicle cigarette-lighting receptacle of an automotive; and the other end connected with the circuit board for input of current from electrical system of the automotive, a USB bus cable comprising a first end forming a USB jack for selective connection with a first electronic device having a USB interface and a second end for connection with the circuit board to convert the input power and supplying the converted power to the USB interface, and a FireWire bus cable comprising a third end forming a FireWire jack for selectively receiving a second electronic device having a FireWire interface and a fourth end for connection with the circuit board to convert the input power and supplying the converted power to the FireWire interface; and the casing forming three receptacles for sleeve-jointing with the plug, USB jack, and FireWire jack respectively.