Patent ID: 9705404
Date: 2017-07-11
CPC Classifications: H02M,H05B,Y02B

Claim:
1. A controller configured to control a switched-mode power converter, being a converter stage of a multi-stage converter, comprising: a control pin for controlling a the state of a power switch of the switched-mode power converter using a control signal; and a sensing pin for receiving a sensed current signal, wherein the sensed current signal is indicative of a current through the power switch; and wherein the controller is configured to detect a break-through situation based on the state of the power switch and the sensed current signal; wherein the controller is configured to control a multi-stage converter comprising a first converter stage providing an input voltage to the switched-mode power converter; and wherein the controller is configured to control the first converter stage to reduce the input voltage subsequent to detecting a break-through situation of the power switch.