Bill,

 Why is this too slow to use a PIC pin to drive an oscillator?
 Just curious about your reasoning.

                                           Regards,

                                              Jim






On Wed, 27 October 1999, Bill Kichman wrote:

>
> Has anybody got an easy to implement circuit to power an lcd EL backlight?
> I guess I need about 110V at around 400 Hertz.  Too slow a frequency to use
> a PIC pin to drive an oscillator, and too much increase for a charge pump
> circuit...want to avoid special DC-DC converters and such, and the available
> little pcb inverters are really expensive, if you can find them.
> Any suggestions??
> Thanks
> Bill Kichman, P.E.
> Cornwall, PA

jim@jpes.com