Patent ID: 8179112

Claim:
A pulse generator for driving a direct current generator, the direct current generator generating a feedback signal, the pulse generator being coupled with a signal processing unit, and the signal processing unit generating a control signal, the pulse generator comprising: a control circuit comprising a first reference voltage source, wherein the first reference voltage source generates a first reference signal, the control circuit outputs a switching signal based on the control signal of the signal processing unit; a comparator comprising a first input terminal, a second input terminal, and an output terminal, wherein the first input terminal is coupled with the control circuit, the second input terminal is coupled with the first reference voltage source to receive the first reference signal, the output terminal outputs a comparison signal based on the switching signal and the first reference signal; and a pulse output unit coupled with the comparator to receive the comparison signal, wherein the pulse output unit outputs a pulse signal based on the comparison signal and the feedback signal.