On 4/12/06, Dumitru Stama wrote: > > > Hello guys > I have a strange problem when trying to use the attached circuit as a > small forward-only driver for a DC motor. The Mosfet is an IRF 540 and > the PIC is 18F452. The pin RC2 in set as output from TRISC and i made > a small program in C18 to issue a "zero-logic" for one second and then > "one-logic" (+5v) for another second and so on. > My problem is that the motor starts turning when the 1 is issued on > RC2 but instead of stopping when i issue 0 it just turns a bit > slowly... After 1 second the 1 is sent again on RC2 and the motor > turns again fast. > Can you guys help me with a suggestion ? What should i do ? Did you use the wrong fet in the schematic? You seem to have source and drain reversed. -- > Feel the power of the dark side! Atmel AVR -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist