05-01-2005, 09:24 PM | #1 (permalink) |
Insane
Location: Dayton, NV
|
I need a part but dont know wtf its called...
I need something like a relay that has 2 positions...
when circuit #1 is connected the switch will be to position #1 even after its disconnected. when #2 is connected it will switch and stay same as before...any idea where i could aquire this device? and wtf it is called?
__________________
Raoul Duke: "I wouldn't dare go to sleep with you wandering around with a head full of acid, wanting to slice me up with that goddamn knife." Dr. Gonzo: "Who said anything about slicing you up, man. I just wanted to cut a little Z in your forehead." |
05-01-2005, 09:24 PM | #2 (permalink) |
Insane
Location: Dayton, NV
|
or how to build one?
__________________
Raoul Duke: "I wouldn't dare go to sleep with you wandering around with a head full of acid, wanting to slice me up with that goddamn knife." Dr. Gonzo: "Who said anything about slicing you up, man. I just wanted to cut a little Z in your forehead." |
05-02-2005, 07:59 PM | #4 (permalink) |
Insane
Location: Austin, TX
|
I think flat5 is right on both accounts. If you're dealing with high-current, 12V-ish signals, then you want a latching relay circuit. If you're dealing with digital stuff (CMOS, TTL logic, etc) then you want a bistable flip flop circuit.
Here's a latching relay circuit I whipped up...this is probably what you're looking for: <a href="http://www.djskaven.com/~skaven/yatta/latching.jpg"><img src="http://www.djskaven.com/~skaven/yatta/latching_t.jpg"></a> Clicky for bigness Last edited by skaven; 05-02-2005 at 08:26 PM.. |
05-02-2005, 08:29 PM | #5 (permalink) |
Insane
Location: Austin, TX
|
Note that my circuit assumes that you always have power. If you were in "circuit #2" mode and power to the coil was lost, the system switches back to "circuit #1". If you're looking for something that switches permanently even after power loss...I'm sure there's something out there that does that, but I can't think of one off the top of my head. I can imagine how to construct one out of a flap of steel and a couple electromagnets though...
|
05-03-2005, 02:02 AM | #6 (permalink) |
Very Insignificant Pawn
Location: Amsterdam, NL
|
Yes Skaven, I too had the impression that some latching relays are mechanically bi-stable.
Maybe have a magnet and and two electro-magnets? or a 2 spring system? Or your bent metal idea. Perhaps I'm dreaming :-) Last edited by flat5; 05-03-2005 at 02:05 AM.. |
06-12-2005, 11:55 PM | #7 (permalink) |
Insane
Location: Dayton, NV
|
Latching Relay did the trick, Thanks guys
__________________
Raoul Duke: "I wouldn't dare go to sleep with you wandering around with a head full of acid, wanting to slice me up with that goddamn knife." Dr. Gonzo: "Who said anything about slicing you up, man. I just wanted to cut a little Z in your forehead." |
Tags |
called, part, wtf |
|
|