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SWITCHED MODE POWER CONVERTER CONTROLLER WITH RAMP TIME MODULATION WITH JITTER FREQUENCY
SWITCHED MODE POWER CONVERTER CONTROLLER WITH RAMP TIME MODULATION WITH JITTER FREQUENCY
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机译:带有抖动频率的斜坡时间调制的开关模式电源转换器控制器
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摘要
A controller for use in a power converter includes a drive circuit coupled to generate a drive signal to control switching of a power switch to control a transfer of energy from a power converter input to a power converter output. An input is also included to receive an enable signal including enable events responsive to the power converter output. The drive circuit is coupled to turn ON the power switch in response to the enable events, and turn OFF the power switch in response to a power switch current reaching a current limit threshold. A current limit threshold generator is coupled to receive the drive signal from the drive circuit to vary the current limit threshold at a variable rate in response to the enable events of the enable signal.
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