Patent ID: 7719243

Claim:
A system for soft-start in a power converter comprising: an error amplifier having a first input terminal and a second input terminal, the error amplifier receiving a feedback signal indicative of the output voltage of the power system at the first input terminal, the error amplifier receiving a reference voltage at the second input terminal, the error amplifier operable to compare the feedback signal against the reference voltage to generate a control signal for regulating an output voltage of the power converter; a soft-start capacitor coupled to the second input terminal of the error amplifier and operable to be charged for establishing the reference voltage; and an adjustable current source operable to provide a current to charge the soft-start capacitor for establishing the reference voltage, the adjustable current source receiving the control signal from the error amplifier, the adjustable current source adjusting the current in response to the control signal so that the error amplifier is prevented from saturation.