# on-off-on soft latch transistor switch

I need to build a soft latching on-off-on switch that latch with momentary push buttons for use in on a 220v AC power line.
I mean a switch that have three momentary push buttons (2 buttons for on state and one for off state).
Is there a schematic for this?

Thanks

• Why two "On" buttons? Do you need to be able to distinguish which one was used? – Dave Tweed Oct 14 '13 at 14:45
• @DaveTweed: two on buttons for two separated outputs; I actually need to activate two devices (both off or one of them on - selectable) - I just need to be able to use each of them to select output line ( like an SPDT switch) or turn off both; actually I need a soft latching version of three position on-off-on SPDT switch – RYN Oct 14 '13 at 14:54
• what is soft latching? – Andy aka Oct 14 '13 at 15:06
• It isn't clear what you mean by "soft latching" in this context. You can purchase three-position SPDT swiches that latch in neither "on" position, one "on" position or both "on" positions. What do you need that this doesn't cover? – Dave Tweed Oct 14 '13 at 15:31
• Ah, I think I see ... you want the functionality of a three-position toggle switch, but you want to do it with momentary pushbuttons instead. I assume this means that if one device is on and someone pushes the other "on" button, the first device should turn off first. – Dave Tweed Oct 14 '13 at 15:50