1) The PWM is to control two(2) motors at 18 amps each constant at 50% duty.
2) The unit will use 8-18 VDC Power supply.
3) I want to be able to adjust the frequency from 100Hz to 4KHz.
4) The unit will need a heat sink and small ball bearing cooling fan/s mounted on the heat sink.
Should be able to complete working design, Schematics and board layout with-in 3-weeks.
Looking for designers having experience with PWM (Pulse Width Modulator) designs.