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TPS92692-Q1: 外部PWM输入时电感啸叫

Part Number: TPS92692-Q1


输入电压:13V

输出电压:24V/30W

RAMP引脚接249K电阻,使用外部PWM控制,频率200Hz

对于以下啸叫问题如何解决?

谢谢!

占空比100%时,没有啸叫

占空比不为0或100%时会产生啸叫