Preventing back EMF, which method?
Preventing back EMF, which method?
(OP)
Hi,
I am seeking some advice on preventing back EMF within a motor.
It is a 10A, 12v motor powered off a PWM power supply. It's 20kHz, with power MOSFETs.
What would be the best way to prevent back EMF into the circuit out of the following?
1. Flywheel diode and resistor
2. Filter circuit (?)
3. Flywheel MOSFET and capacitor
Quick feedback would be greatly appreciated,
Cheer!
Barney
I am seeking some advice on preventing back EMF within a motor.
It is a 10A, 12v motor powered off a PWM power supply. It's 20kHz, with power MOSFETs.
What would be the best way to prevent back EMF into the circuit out of the following?
1. Flywheel diode and resistor
2. Filter circuit (?)
3. Flywheel MOSFET and capacitor
Quick feedback would be greatly appreciated,
Cheer!
Barney





RE: Preventing back EMF, which method?
Given you mention flywheel (do you mean free-wheeling?) diodes and filters, might you instead be concerned about switching losses or eddy current losses or something?
RE: Preventing back EMF, which method?
RE: Preventing back EMF, which method?
http://modularcircuits.tantosonline.com/blog/artic...