Elimination of multiple power supplies:
We require three MOSFET switches and Isolated gate drives to control the motor as shown in the sketch. Each gate driver has to be provided with separate power supply (Vcc2) to maintain isolation. Please do suggest a solution to eliminate multiple power supplies.
Power on issue:
At power up, on reset of micro-controller, by default a logic high state glitch at the input (IN+) of gate drivers switching on the motor momentarily. It needs to be avoided. Please do suggest.
Gate driver damage:
Motor rated voltage - 110V DC, Split field series, rated current - 5A, peak current - 8A.
PWM frequency to drive the motor - 10KHz with a duty cycle resolution of 2% and step interval - 100ms. Approx 4.5sec is the duration to reach 100% duty cycle.
470uF/100V capacitor is placed across 110V supply to suppress the noise.
When start driving the motor with PWM we have observed high current is drawn by the VCC2 power supply. Later came to know that Gate drivers (I1 and I2) have been damaged. Investigating the issue. Please do suggest.