Driving device and driving voltage regulation method

The invention relates to a driving device. The driving device is used for driving a plurality of loads to work and comprises a voltage regulation unit and a plurality of sensing units, wherein the voltage regulation unit is used for receiving direct current (DC) voltage to be electrified to work so as to output a driving voltage to the plurality of loads; the plurality of sensing units are used for sensing the total forward voltage of the plurality of corresponding loads respectively to generate a plurality of corresponding sensing voltages and comparing the plurality of sensing voltages with a preset first reference voltage respectively, and the corresponding sensing unit generates a first feedback signal when one sensing voltage is lower than the first reference voltage; and the voltage regulation unit increases the driving voltage based on the first feedback signal.