I am using schematic to controll a bldc motor without sensors.
As gate drivers I am using IR2101 and also I added some diodes in anti-parallel with gate resistors (not shown in the schematic)
I am trying to drive the motor in the start sequence like a stepper motor. At this moment I am testing this with an arduino uno.
The motor control works fine but the MOSFETS get too hot.
For a phase (B) I have the gate signals like in this picture, but the motor is not powered. (Yellow - high side, green - low side)
When I connect the motor it spins well, but the MOSFETS get too hot. And the signal present at the gates for phase B is like this. (Yellow - high side, green - low side)
The motor is a 36V,250W bldc motor.
Does anyone know what could be wrong ?