Tool/software:
Hi Yara,
We have discussed on my customer schematic of using DRV8340 in aux drive system. But some abnormal occurred:
The schematic looks similar to E2E forum except they have optimized the ground connection you recommend.
Abnormal occurred when:
- Duty cycle of MCU output greater than >0.5, the low side half bridge missing pulses.
- For example: Blue waveform is MCU U phase upper output, green is U phase upper driver Vgs. All of them missing pulses when duty cycle is greater than 0.5.
Can you help check what might cause this problem?
