Patent ID: 8686707

Claim:
A voltage regulator, comprising: a reference voltage generator; a voltage conversion module, coupled to the reference voltage generator, and generating a pulse voltage; a first switch unit, coupled to the voltage conversion module, and having a first terminal receiving the pulse voltage; a regulating unit, coupled to a second terminal of the first switch unit, and converting the pulse voltage into a continuous voltage; a power output unit, coupled to the first switch unit and the regulating unit, and receiving the continuous voltage to output a voltage power through a power output terminal; and an intermittent signal generating module, coupled to the reference voltage generator, the voltage conversion module and the first switch unit, and periodically generating an intermittent signal according to a predetermined period, wherein when the intermittent signal is enabled, the reference voltage generator generates a reference voltage according to an input voltage, the voltage conversion module converts the reference voltage to output the pulse voltage, and the first switch unit conducts the first terminal and the second terminal thereof.