| 摘要 |
A frequency locking method for a buck converter in a hysteresis mode, the method comprising: respectively converting a reference frequency and a system sampling frequency to obtain voltage parameters respectively corresponding to the reference frequency and the system sampling frequency (101); according to the voltage parameter corresponding to the reference frequency and the voltage parameter corresponding to the system sampling frequency, calculating to obtain a differential current signal (102); and according to the differential current signal, controlling a slope of a voltage Vramp formed according to a feedback voltage Vfb (103). |
