🚀 go-pugleaf

Rob wrote...
>
> Lyndon wrote ...

>> This system is all part of a feedback pedal design that will
>> provide more resitance the further you push in the pedal.  We have
>> a potentiometer measuring pedal displacement and this goes into a
>> microcontroller, through a simple transfer function and produces
>> the output signal which will drive the solenoid.  ...

> Lyndon - have you considered using a PWM motor controller? For a
> quick test Dick Smith do a $20, 20A controller which I think is
> PWMable. Perhaps others may be able to expand on this approach.

 I wonder if Lyndon wouldn't be better off with a geared-down motor
 i torque mode rather than a solenoid.  They have rather poor force
 vs. displacement characteristics, whereas motors are excellent.

 Thanks,
    - Win

 whill_at_picovolt-dot-com  (use hill_at_rowland-dot-org for now)