Patent ID: 8188724

Claim:
A feedback circuit for use in a power supply regulator, comprising: a voltage regulation circuit coupled to sense an output voltage of the power supply regulator, wherein the voltage regulation circuit is coupled to generate a first regulation signal to regulate an output of the power supply regulator if an output current of the power supply is less than a first transition current; a current regulation circuit coupled to sense an output current of the power supply regulator, wherein the current regulation circuit is coupled to generate a second regulation signal to regulate the output of the power supply regulator if the output voltage of the power supply is less than a second transition voltage; and a transition region regulation circuit coupled to sense the output voltage and the output current of the power supply regulator, wherein the transition region regulation circuit is coupled to generate a third regulation signal to regulate the output of the power supply regulator if the output current of the power supply is between the first transition current and a second transition current, wherein the feedback circuit is coupled to generate a feedback signal output in response to the first, second and third regulation signals.