>Better to use the pwm from the low voltage controller to drive a
>higher voltage H Bridge setup of FETs
>
>small pwm generator can be as simple as a 555 chip with some caps
>and resistors driving 4 fets for the H-Bridge
you don't need an H-bridge for a brushed motor unless you need it to
do reverse. Just a single set of low-side mosfets - with that 555 PWM
circuit.
For brushless I have a controller circuit on my web site somewhere.
I'm using dual IRFP3260 s for up to ~40V; adjust to suit.
Craig
http://www.TurquoiseEnergy.com/
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Posted by: Craig Carmichael <craig@saers.com>
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