Patent ID: 8629670

Claim:
A switching adapter control apparatus for adaptive mobile power systems comprising a reference current generator, a current mode error compensator, a controllable constant turn-off timer, a PWM generator and a driver; wherein the reference current generator generates a corresponding reference current, according to the detected output voltage Vo and the preset output voltage Vref; the current mode error compensator is used to amplify and compensate the error between the detected output current and the corresponding reference current to output the control signal for the PWM generator; the PWM generator outputs PWM turn-on signal based on the control signal; the PWM generator outputs PWM turn-off signal based on the controllable constant turn-off timer; the controllable constant turn-off timer is controlled with the corresponding reference current and Izero triggering signal; the lzero triggering signal can come from the PWM generator, that is, PWM turn-off instant or inductor current drop to zero instant; the driver receives the PWM control signal and switches a power switch on and off.