I have noise on my 60Hz PWM output. The PWM output is going to the ESC to control the motor. Below is the signal with 5V per division. The PWM signal is a 60Hz, 10V signal. The duty cycle can be changed.
What I have noticed is that as i increase the duty cycle, the Brushless Motor suddenly increase and decreases; I believe noise on the PWM signal could be the issue. Below is the signal at 1V per division. What capacitor value should I add to decrease the noise?
Below is the signal when the motor suddenly increases or decrease. This time, it went from 4.1Amps to suddenly 8Amps. I hope someone can explain why this is happening. Some findings: when I increase or decrease the scale on the oscilloscope, it affect the motor. I don't understand why that is happening.