Patent ID: 9019728
Filing Date: 2015-04-28
Classification: H02M

Abstract:
1. A secondary control circuit for use in a power converter, comprising: a voltage regulator circuit to be coupled to an output of the power converter coupled to provide power to an output load coupled to the output of the power converter, the voltage regulator circuit coupled to provide a regulated power supply of the secondary control circuit; one or more switched loads coupled between a first terminal and an output ground terminal of the power converter, wherein the first terminal is to be coupled to the output of the power converter, wherein each one of the one or more switched loads is coupled to switch a respective current from a load current from the output the power converter to provide additional loading on the output of the power converter; and one or more comparator circuits coupled to a second terminal, the second terminal coupled to receive an output sense signal representative of an output of the power converter, wherein each one of the one or more comparator circuits is coupled to receive a respective one of one or more reference signals, wherein each respective one of the one or more reference signals is a scaled representation of a first one of the one or more reference signals, and wherein each one of the one or more switched loads is coupled to be switched in response to an output of a respective one of the one or more comparator circuits to switch the respective current from the load current of the power converter to provide the additional loading on the output of the power converter.