Hello,
I am looking for the simple way of doing impulse switching. One impulse must switch on power (220Vac, 1A) and another must switch it off. One push button will be used.
At first I thought I need a latching relay, but it turned out to be not suitable as 1 coil latching relay requires to switch polarity for it to switch and 2 coils latching relay requires two buttons.
Then I looked for small two steps relay, but I could not find anything like that.
I think that I need some kind of simple IC which would decode impulses into high/low state of one output and use a simple power relay. The question is, what IC will do the job? I would also prefer it to have a memory (when power goes on, output switches to its last state). I have found NTE754, but its datasheet does not specify whether it has memory or not, and - what is the most important - it is very hard to get one where I live.
Please do not offer to use PICs or anything like that - it is not a simple way of handling my problem.
I am looking for the simple way of doing impulse switching. One impulse must switch on power (220Vac, 1A) and another must switch it off. One push button will be used.
At first I thought I need a latching relay, but it turned out to be not suitable as 1 coil latching relay requires to switch polarity for it to switch and 2 coils latching relay requires two buttons.
Then I looked for small two steps relay, but I could not find anything like that.
I think that I need some kind of simple IC which would decode impulses into high/low state of one output and use a simple power relay. The question is, what IC will do the job? I would also prefer it to have a memory (when power goes on, output switches to its last state). I have found NTE754, but its datasheet does not specify whether it has memory or not, and - what is the most important - it is very hard to get one where I live.
Please do not offer to use PICs or anything like that - it is not a simple way of handling my problem.