Patent ID: 9407147
Filing Date: 2016-08-02
CPC Classification: H02M

Claim Text:
1. A multiphase converter controller with current balance, adapted to control a plural converting circuits and commonly supplying an output voltage, comprising: a feedback circuit, detecting the output voltage for generating a feedback control signal; a fixed on-time circuit, generating an on-time signal according to the feedback control signal, wherein the fixed on-time circuit only has a single timer, and a pulse width of the on-time signal is determined according to the single timer; and a multiphase logical circuit, generating a phase signal according to a sequence of the feedback control signal to choose a corresponding converting circuit among the plural converting circuits, and controlling the corresponding converting circuit according to the on-time signal; wherein the fixed on-time circuit receives a plurality of current detecting signals respectively indicating currents flowed through the plural converting circuits, and wherein the fixed on-time circuit determines correction values of the plural converting circuits according to the current detecting signals and the phase signal, and accordingly correct the pulse width of the on-time signal of the corresponding converting circuit, so that the multiphase logic circuit generates a corresponding control signal for controlling the corresponding converting circuit according to the corrected on-time signal.