In seller specification is PWM frequency 20kHz, but real pwm frequency is 26 Hz !!!! (measured on dig. oscilloscope and two motor speed controllers). For many application with DC motor is 26Hz sufficient.
In seller specification is PWM frequency 20kHz, but real pwm frequency is 26 Hz !!!! (measured on dig. oscilloscope and two motor speed controllers). For many application with DC motor is 26Hz sufficient.