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BMS 限流板电池包外部PACK端给充电电流后TL494 占空比一直在调节，无法限流，测试ref脚可能受到干扰。
Hi
将电路放上来看看。
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当加到11A电流时候，mos GS的pwm波在不断的调节，同时ref 波形出现很大的毛刺，PWM波对应的也有这种干扰。ref和PWM波的干扰都是同步的。
看起来是layout的影响。
