In the conventional start/stop relay circuit, an additional ("holding") contact is connected in parallel to the start push button.
But what do we do when there is no such an additional contact? Or if there is no contact at all (for example, instead of a relay there is a solenoid)? Can we still make a "relay latch" with simple means?
These are different types of magnetic latching relay that can be used for this aim.
Yes... it could be used... but this solution is too staightforward... This question needs more tricky answer.
yes quite simply using a push-to-hold button (or a spst switch). Pardon my joke but I could not contain the joy ..
Well, then we can remove the relay:)
The trick here is to make the relay self-hold. I think it has such an ability... if only we put it in the proper mode...
In an attempt to awaken interest in great simple ideas, I argue that I can make the ordinary electromagnetic relay memorize in three possible ways - mechanical, electrical, magnetic... still without using an additional contact or electronic latch...
A small correction - without "mechanical" (it is not a complete way:)
No, not with a typical relay. You can use a remanence relay which is set with a one-shot signal, but you will need an additional signal to reset it.
Interesting... I have learned another unfamiliar word - "remanence":)
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