Patent ID: 9735681
Date: 2017-08-15
CPC Classifications: H02M

Claim:
1. A voltage converter generating an output voltage at an output terminal comprising: a compensation circuit generating a first compensation signal according to a loading state of the voltage converter; a first comparator circuit receiving the first compensation signal and a first reference signal and comparing the first compensation signal and the first reference signal to generate a first comparison signal; a first inductor coupled to the output terminal; a first driver circuit generating a first driving voltage to the first inductor according to the first comparison signal; a phase-lag circuit, coupled between the first comparison circuit and the first driver circuit, receiving the first comparison signal, and modifying a duty of the first comparison signal for changing a first inductor current flowing through the first inductor; and a correction circuit generating a first correction signal, according to the first inductor current, to the phase-lag circuit, wherein the phase-lag circuit modifies the duty of the first comparison signal only according to the first correction signal.