| 摘要 |
A switched-mode power supply controller circuit 300 comprises oscillation circuitry 310, compensation circuitry 320 arranged to provide a compensated control signal to the oscillation circuitry 310, and power converter circuitry 330 operably coupled to an output of the oscillation circuitry 310. The power supply controller circuit 300 further comprises switching frequency controller logic 340 operably coupled to the compensation circuitry 320 and arranged to control a switching frequency of the power supply controller circuit 300 based on at least a switching frequency feedback signal from an output of the oscillation circuitry 310. Varying output ripple voltage is substantially alleviated whilst providing increased control loop bandwidth. |
