Replacing Switches (Caution! Nerdy)
Not satisfied with being hip-deep in projects I am looking into replacing the lamp and water-pump switches in Quicksilver with membrane touch switches. They glow orange with about 1.5 ma current, and ...
Forum Discussion
The new switches you want to use are cool looking, but don't handle much current??? So that's why you're looking at using a mosfet?
You'll want a latching flip-flop switch to drive the mosfet. One input pulse turns it on, and it stays on until another input pulse turns it off.
something like this item on the mighty e-bay:
clicky
On board 5 amp mosfet for small loads, or use it to toggle a relay or larger mosfet for big loads.
I'll read up on the mosfet you selected. What your expected max load? Water pump is inductive and mine did not like being switched by a mosfet, I suspect the turn on time is too fast. It was causing a large inrush current spike and causing other items on the dc bus to freak out.
You'll want a latching flip-flop switch to drive the mosfet. One input pulse turns it on, and it stays on until another input pulse turns it off.
something like this item on the mighty e-bay:
clicky
On board 5 amp mosfet for small loads, or use it to toggle a relay or larger mosfet for big loads.
I'll read up on the mosfet you selected. What your expected max load? Water pump is inductive and mine did not like being switched by a mosfet, I suspect the turn on time is too fast. It was causing a large inrush current spike and causing other items on the dc bus to freak out.
