flyback diode question - Electronic Circuits Projects Diagrams Free

paul_ma7 · 29th May 2009, 09:54 PM

if i have inductors in an ac circuit, should i install two flyback diodes for every inductor,
to protect the other components from the kickback?

Mike2545 · 29th May 2009, 10:50 PM

What type of circuit? If its DC you need only one as you cant put one on an AC inductor.

Sceadwian · 29th May 2009, 11:58 PM

Inductors only have the 'kick back' effect when they're suddenly switch off from normal conduction, in AC circuits this is very uncommon, basically you'd have to turn the switch off as the device was at it's maximum conduction, diode's can't protect both ways, though back to back Zeners or other transient suppression devices would work, you'd need to share your schematic or explain exactly where the inductor is in the circuit to figure out if a supression method is even required.

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29th May 2009, 09:54 PM	#1
paul_ma7	flyback diode question if i have inductors in an ac circuit, should i install two flyback diodes for every inductor, to protect the other components from the kickback?

29th May 2009, 10:50 PM	#2
Mike2545	What type of circuit? If its DC you need only one as you cant put one on an AC inductor. __________________ Mike2545

29th May 2009, 11:58 PM	#3
Sceadwian	Inductors only have the 'kick back' effect when they're suddenly switch off from normal conduction, in AC circuits this is very uncommon, basically you'd have to turn the switch off as the device was at it's maximum conduction, diode's can't protect both ways, though back to back Zeners or other transient suppression devices would work, you'd need to share your schematic or explain exactly where the inductor is in the circuit to figure out if a supression method is even required. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."