Isolating push button switches?
Isolating push button switches?
(OP)
Is there an easy way to make a group of push buttons work only one at a time? I have a group of 4 push buttons and need to make them so they can not be all activated simustaneously, so they don't pull too much power the the main switch and fry it? Thanks





RE: Isolating push button switches?
RE: Isolating push button switches?
When I was not a kid anymore, it was done with logic gates.
Nowadays, mostly, all inputs go to a microcontroller, and all outputs come from it, and the only linkage between a given input and a given output is firmware. Which has the advantage of allowing you to easily add extra functions like lockouts, response to button combinations, etc.
But you didn't tell us enough about what's behind your pushbuttons for us to guess what is 'easy'.
Mike Halloran
Pembroke Pines, FL, USA
RE: Isolating push button switches?
For low voltage DC circuits, there are other options.
By the way, if this is one of these industrial wired remote controls, then the added relays ("contactors") need not necessarily be installed within the remote control box. The relays could be installed at the cabinet at the other end of the cable.
RE: Isolating push button switches?
David Baird
Sr Controls Designer
EET degree.
Journeyman Electrician.
RE: Isolating push button switches?
You may use relays wired to seal in once activated and at the same time interrupt the current to all the push buttons. Depending on the inertia of the relay armature and the contact clearances, some models of relays will work and some won't work. The good news is that if a relay does work in this application, all of the same model relay will probably work.
But that's nostalgia talking.
If I had to do this today, I would ask itsmoked to point me at a suitable micro chip and do it in logic. Smaller, cheaper, and more dependable.
Bill
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"Why not the best?"
Jimmy Carter
RE: Isolating push button switches?
Dan - Owner

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