| Electronics > Beginners |
| Soft push button using latching switch |
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| jiko:
Hi, I am planning to convert my wall switches to push buttons so I can use them in my smart-home system. I came across to EEVblog #262 - World's Simplest Soft Latching Power Switch Circuit, but I need to do the opposite. Is there a schematic that uses passive only components to convert a simple SPDT to a momentary push button? Thank you for any input. Edit: Every time the switch changes position an active high pulse of 3V and duration ~500 ms should be fired. |
| mikerj:
You need to describe how you want this to work, e.g. do you want a pulse of fixed duration every time the switch position is change changed, a pulse when moved to one position but not the other, do you want active low or active high pulse, what voltage etc.. |
| sokoloff:
Why restrict yourself to passives only? That rules out a whole bunch of solutions that may be beneficial. |
| KL27x:
Sounds like a homework assignment. |
| jiko:
--- Quote from: mikerj on July 08, 2019, 09:09:34 am ---You need to describe how you want this to work, e.g. do you want a pulse of fixed duration every time the switch position is change changed, a pulse when moved to one position but not the other, do you want active low or active high pulse, what voltage etc.. --- End quote --- Hi mikerj, Thank you for your reply. Every time the switch changes position an active high pulse of 3V and duration ~500 ms should be fired. Thanks |
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