Patent ID: 8467157
Filing Date: 2013-06-18
Classification: H02H,H02M

Abstract:
1. A controller for regulating a power converter, the controller comprising: a first terminal operable to receive a feedback signal, wherein the first terminal is adjacent to a second terminal and a third terminal; feedback circuitry coupled to the first terminal and operable to receive the feedback signal; driver circuitry operable to generate a drive signal configured to switch a power switch between an ON state and an OFF state to regulate the output of the power converter, wherein the drive signal is generated based at least in part on the feedback signal; fault detection circuitry coupled to the first terminal, the fault detection circuitry operable to detect a fault condition in response to a fault detection current flowing in the first terminal being greater than an upper threshold current or less than a lower threshold current; and offset and clamp circuitry coupled to the second terminal and to the third terminal, wherein the offset and clamp circuitry is operable to: