How to prevent relay chatter
Mark Hanchey email (remove spam text)
I have a pic project that uses relays on several pins, none of the pins are programming pins. The problem I having is that anytime I program the chip, 18F46K80 , the relays switch on and off rapidly, this causes a lot of power spiking in the outputs connected and also doesn't do the relay life span any good either. Anyone faced this problem before ? I thought maybe raising the resistor value on the transistors driving the relays might work but wanted to get some input first.
Are there pins on the pic that are less susceptible to having their inputs change while being programmed ? Currently it sounds like the relay is switching about 5 or 6 times during programming.
In reply to: <CAJLb5+Qqsa0-jxq0h=390_6mZvy73FYE0bsEaNhq+M3em1X0CQ@mail.gmail.com>
See also: massmind.org/techref/microchip/ios.htm?key=relay