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When I send 50% duty cycle, 500KHz complementary pulse signal to the hi and Li of lmg1210, and add epc8010 chip to the back end, the continuous pulse waveform will be output and flicker. How to solve this problem
This is my schematic diagram. I have spent much time.but I don't find any problem. Can you help me .Thanks you!
HI
从电路上看你用了很多变阻器,你是要做测试电路吗?
驱动上的电阻不可以打的,10ohm一般就很大了。 电路建议你参照datasheet,或者一些评估版。
HI
首先Vin电容layout尽量靠近Vin脚,测试BST电压正常, 接着使用的是肖特基二极管, 检查chargupump电容是否异常?
然后就是正常的PWM输入,这个是被动器件,不应该出现这样的输出驱动信号?
(使用的MOS Qg尽量选小一点)