12V to 220V Simple Inverter based on the STM32 (Noise problem )

[azadfalah]

Hi friends

In a 12V to 220V Simple Inverter based on the STM32 when the inverter goes under load the STM32 interrupt pin is activated despite jumping to VCC (this pin is Time1 Break and sets Active low)
Despite the jump of the interrupt pin to the VCC, the interrupt is still generated due to noise.

A Simple Buck Converter with STM32
12V -> 320V DC -> 220V AC (No Isolation)
Power = 500Watt


The focus of this question is on solving the noise on MCU
GND of MCU is common with GND Battery and GND DC BUS 320V

GND are highlighted

Thanks

 

[Easy peasy]

likely your issues are to do with overly aggressive gate drive ..... but need to see schematic ......

also why is there no proper de-coupling near the fets ?

 

[azadfalah]

likely your issues are to do with overly aggressive gate drive ..... but need to see schematic ......

also why is there no proper de-coupling near the fets ?

thank you for your answer

MOSFETs Gate Driver is TC4427
de-coupling capacitor show in image
Which part of the schematic should I send for review?