Electric automobile power supply unit and motor vehicle

The utility model discloses an electric automobile power supply unit and motor vehicle, be provided with bridge type rectifier circuit including the power input end, bridge type rectifier circuit's output is established ties and is had first resistance, zener diode, second resistance and first electric capacity, zener diode is connected to the grid that a MOS managed with the tie point of second resistance, the drain electrode of MOS pipe is passed through between third ohmic connection to first resistance and the zener diode, the source electrode of MOS pipe passes through the grid of fourth ohmic connection to the 2nd MOS pipe, the drain electrode of the 2nd MOS pipe is through the drain electrode of the 5th ohmic connection to MOS pipe, the source electrode of the 2nd MOS pipe is through the 2nd capacitance connection to bridge type rectifier circuit, connect in parallel and have super capacitor in the both ends of zener diode, second resistance and first electric capacity. The utility model discloses can improve the not enough of prior art, not only realize the power supply function of electric automobile under no electric wire netting or power supply environment, improve charging source's stability in addition.