Speed controller for brushless electric bike motor? Answered
I have obtained a 400W 24V 2800RPM Monophase BLDC motor with related power supply and a 24V 40A-rated pulse width modulator unit, however from what i understand the PWM won't give me full control (if any at all) of the actual speed of a BLDC motor.
I want my motor's torque to remain relatively intact and for it to cover a range of about 50-300 RPM, with no need for exact control.
Are my only choices to build a pulley mechanism or to buy a mechanical gearbox? I'd like to control my motor electronically.