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Switch mode power supply system with dual ramp compensation associated controller and method
Switch mode power supply system with dual ramp compensation associated controller and method
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机译:具有双斜坡补偿相关控制器的开关电源系统和方法
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摘要
A switch mode power supply system has a constant on-time signal generator, a logic circuit, a feedback circuit, a first ramp signal generator, a second ramp signal generator, a switch circuit having a power switch, and a comparator. A feedback signal from the feedback circuit is compensated by the first ramp signal generator, and a reference signal is compensated by the second ramp signal generator. The comparator compares the compensated feedback signal with the compensated reference signal to indicate an off time of the power switch while the constant on-time signal generator decides the on-time of the power switch.
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