| 摘要 |
An uninterruptable power supply device for vehicles is provided to operate by the voltage of a secondary battery once the vehicle starts. An uninterruptable power supply device for vehicles comprises a no-contact switching device. The no-contact switching device performs as a diode(103) or a function similar to the diode. The no-contact switching device supplies the non-stop power source to the device from two or more power sources using a non-contact switching element. If the vehicles start after a cigar jack plug(102) is inserted into a socket(101), the diode is conducted through the forward direction and a LED(104) is turned on. The diode supplies the power source while preventing the electricity from flowing to main battery from the secondary battery.
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