Beware of really high starting currents in the motor - it starts out
stalled and the current can rise to the locked rotor value, possibly
dropping the power supply voltage too low for the picchip.


Jattie van der Linde - ITEC x4181 wrote:
>
> I'm using a PIC16C84 with PWM control in software to control the
> direction and switching of a DC motor. All the controls are working just
> fine but as soon as I ad te motor it starts buggering around. I've added
> filters and diodes and at this stage I'm considdering a career change.
> Please help. I'm using a mosfet to switch the motor to ground with my
> PWM control bits. I think that the motor generates some noise on my
> powersupply on the pic and I've added capasiots across vcc and vdd. What
> else can I do. I've also added PI filters to the motor outputs.
>
> Any advice will be greatly appreciated.
>
> Best regards
>
> Jattie van der Linde