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3 way latching swich

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Englewood

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latching switch

Hello Guys,

Its been awhile since I've been on here but I got great help last time :)

Is there a latched switch I could possibly use.

That will stay latched (Closed) when pressed at one end then when pressed at the other end unlatch (open), I need the switch to be small and a push button mechanism

??

Cheers
 

Re: latching switch

Englewood said:
That will stay latched (Closed) when pressed at one end then when pressed at the other end unlatch (open), I need the switch to be small and a push button mechanism
Click to expand...
Do you want to control a switch with push button or a simple S-R latch fits ?
 

Well I have a moving part that when it gets to a certain position it hits a push button switch and stays latched then when the part moves back to its original position I want the push button to unlatch, I don't have much room to play with either about 25mm.

So push button would be good if possible

- - - Updated - - -

A all in one make/break switch.

Make when one end is pressed , break when the other end is pressed.
 

Make when one end is pressed , break when the other end is pressed.
Click to expand...
So there are 2 push buttons or you want with a single button to be pressed twice during a cycle?
 

A single button would be better (yes)

That's correct twice during cycle one time to press the button to latch and then to unlatch.

But I need a button at each end, one to latch one to unlatch. (All in 1 - 2 end button)
 

Do you want to control something or you just want a part name ?
 

Basically just the part name, as long as it latches/delatches :)

I could get away with two buttons and a IC. (Other Option)
 

Explain this please.. First you say 1 button.
Englewood said:
A single button would be better (yes)
Click to expand...
Then you say a button at each end, which means 2 buttons ?
But I need a button at each end, one to latch one to unlatch. (All in 1 - 2 end button)
Click to expand...


If 1 button => JK latch
If 2 buttons => SR latch (my picture there uses a relay which not fits into 2,5 cm..)
 
Yes sorry to confuse you, I want 2 buttons in one switch.

- - - Updated - - -

Untitled.jpg

See attached image
 

I don't have room for a relay, two buttons and a SR latch would fit.
 

after I posted that link, I realised that particular relay is not the latching type.
But they are available.

The idea behind a latching relay is that they are like a child's see saw, with two stable states held in either state by small permanent magnet. There are two solenoid coils, and pulsing either one very briefly will make the relay change state.

Its really like a mechanical flip flop.
The advantage is that the contacts can be used to switch reasonable amount of power.

Just use each of your momentary switches to pulse the two relay coils, and the relay will latch and stay in one condition until the other switch pulses the other coil.
 
Cheers,

This is latching :)

**broken link removed**
 

Okay, so I'm going to run this of a 5V supply will I need a resistor?

What pins are +/- as i cant find the answer :thinker:
 

Yeah i have the datasheet just cant find the pin outs
 

I thnik page 3 right side should say something but do not know how to interpret that :roll:
 

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