Hello all,
I'm building a three phase motor controller, I've designed the circuit on a PCB and I'm trying to test the inverter and it is not working.
I'm using an IR2104 to drive the mosfets, the LO is fine but the HO is a noisy dc signal for some reason. I'm driving it with a 64khz PWM signals from an Arduino due.
I made sure the low mosfets are on first (to charge the capacitor).
attached is the schematic and the PCB layout. Originally I used am IRS2186 but I changed it to IR2104 with the appropriate connections made.
I'm building a three phase motor controller, I've designed the circuit on a PCB and I'm trying to test the inverter and it is not working.
I'm using an IR2104 to drive the mosfets, the LO is fine but the HO is a noisy dc signal for some reason. I'm driving it with a 64khz PWM signals from an Arduino due.
I made sure the low mosfets are on first (to charge the capacitor).
attached is the schematic and the PCB layout. Originally I used am IRS2186 but I changed it to IR2104 with the appropriate connections made.