Invention Grant
US09537405B2 Power converter with power foldback 有权
电源转换器,带功率折返

Power converter with power foldback
Abstract:
A controller for use in a power converter includes a drive circuit coupled to control switching of a power switch of the power converter to regulate the output of the power converter. A limit sense circuit is coupled to output a limit sense signal in response to a condition of the power converter. The drive circuit is coupled to operate in a first operation mode if there is a no limit condition. The first operation mode includes regulating the output of the power converter with a regulated output voltage and a first maximum output current. The drive circuit is coupled to operate in a second operation mode if there is a limit condition. The second operation mode regulating the output of the power converter with the regulated output voltage and a second maximum output current wherein the second maximum output current is less than the first maximum output current.
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