Patent ID: 9231574
Filing Date: 2016-01-05
CPC Classification: H02M,H03K

Claim Text:
1. A power converter, comprising: an input port configured to receive an input voltage; an output port configured to provide an output voltage; a switch module comprising a main switch configured to switch on and off in response to a pulse width modulated signal to convert the input voltage into the output voltage; and a control module having a first control input terminal, a second control input terminal, a third control input terminal and a first control output terminal, wherein the first control input terminal is configured to receive a first feedback signal indicative of the output voltage, and wherein the second control input terminal is configured to receive a second feedback signal indicative of a switching current flowing through the switch module, and wherein the third control input terminal is configured to receive a reference signal indicative of a desired value of the output voltage, and wherein the control module is configured to provide an off trigger signal based on the first feedback signal, the second feedback signal and the reference signal; and wherein the control module is further configured to monitor a deviation of the output voltage from the desired value of the output voltage, and to compare the deviation with a first predetermined threshold window to generate a clock control signal, wherein the clock control signal is configured to control the generation of a clock signal, and wherein the control module is further configured to provide the pulse width modulated signal based on the off trigger signal and the clock signal, wherein the pulse width modulated signal is configured to drive the main switch to switch on in response to the clock signal, and wherein the pulse width modulated signal is configured to drive the main switch to switch off in response to the off trigger signal.