I am going to be controlling a relay with a reed switch. The behavior I am looking for is to have the relay switch on immediately (or as quickly as possible) when the reed switch is closed but when the reed switch is opened again, a few moments goes by before the relay is shut off... Just in case there is interference in the magnetic field of the switch. So if the reed switch were to turn off and on again for a second or so, the transistor would remain saturated.
However I am unsure of exactly how to get a capacitor to act this way. Most things I find on google talk about ramping up the voltage slowely, rather than trying to sustain it and having it drop slowly.
However I am unsure of exactly how to get a capacitor to act this way. Most things I find on google talk about ramping up the voltage slowely, rather than trying to sustain it and having it drop slowly.
Attachments
-
23.6 KB Views: 26