I want to use the 555 time to control the timing on the power pulse of a spot-welder using a foot switch.
I have seen a few 555 mono-stable circuits, but am having trouble finding the values of the resistors and capacitors in order to get times below 1 second.
Also, I want to connect this circuit to a spot welder in a safe way, because of power difference. My spot welder is made of a MOT, and have a pedal switch to do the switching.
How should I connect these parts together? What kind of pot/cap combo for sub 1 second timing with a 555 timer?
I wanted to add the image at the bottom of the page, but didn't know how. So, i have to put over here. Please let me know any modifications that i should do with the connections. Also, i would like to add a POT in the 555 timer circuit in order to adjust the timing. Where should i put it? Thank you for any help...