Patent ID: 7804305
Filing Date: 2010-09-28
Classification: G01R,H01L,H02M

Abstract:
1. An integrated control circuit for a power supply, comprising: a terminal to be coupled to a capacitor of a feedback loop of the power supply; a threshold detect and timing circuit coupled to the terminal to determine a capacitance value of the capacitor during a time period; a parameter/mode selection circuit coupled to the threshold detect and timing circuit to determine one of a plurality of parameters/modes of the integrated control circuit during the time period in response to the capacitance value, wherein the integrated control circuit receives a feedback loop compensation at the terminal from the capacitor after the time period has ended; and a drive signal generator to be coupled to control switching of a switch included in the power supply in response to a feedback signal received at the terminal to regulate a transfer of energy from an input of the power supply to an output of the power supply.