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DIY Remote controlled Power box
- Thread starter MOPAR3
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MOPAR3
Super Member
I ordered this relay http://www.grainger.com/Grainger/items/5Z538 I'm wondering if I should put a cap or diode across the coil to absorb any inductive spike when the coil field colapses. Does a ac coil have an induced voltage when turned off like a dc relay? Does it matter?
markn2wae
Mark T N2WAE
Can't use a diode on AC coil.
You can't use a standard diode on an AC powered relay coil, (MAYBE back to back Zieners?) a capacitor\resistor series combination may work.
The diode is usually used on a DC coil driven by an IC or transistor, the diode kills the reverse spike and prevents destruction of the IC or transistor driving the relay coil.
Mark T.
You can't use a standard diode on an AC powered relay coil, (MAYBE back to back Zieners?) a capacitor\resistor series combination may work.
The diode is usually used on a DC coil driven by an IC or transistor, the diode kills the reverse spike and prevents destruction of the IC or transistor driving the relay coil.
Mark T.
MOPAR3
Super Member
This ac relay is actually going to be driven by another relay in the preamp. I don't want to send anything back into the preamp or tuner that I have hooked up to another of the switched outlets. Would an x cap be enough? I could have bought a Furman relay box and a trigger box to plug into the pre but that would have cost 150.00 or so. I figured I could do it better and cheaper and put it in a nice oak case.
signal-dude
Just one good watt.......
"Any thoughts or suggestions. Cautions or ways to avoid any problems."
"I figured I could do it better and cheaper and put it in a nice oak case."
To avoid a fire risk put it all in a aluminum BUD box or chassis and then attach some nice oak panels to it. You don't want to have to explain your creation to the insurance company.
"I figured I could do it better and cheaper and put it in a nice oak case."
To avoid a fire risk put it all in a aluminum BUD box or chassis and then attach some nice oak panels to it. You don't want to have to explain your creation to the insurance company.
