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Circuits Miscellaneous Relay Delay
Description
Partlist
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Circuits Miscellaneous Relay Delay
Relay Delay
This circuit waits for a set time and then activates a relay.
With the cap that is in the schematic you will get about a 6 sec delay till power on. You can change the cap in this circuit to 470uF for about a 20 sec delay.
With the cap that is in the schematic you will get about a 6 sec delay till power on. You can change the cap in this circuit to 470uF for about a 20 sec delay.
Partlist
2 x resistor
3 x transistor
1 x diode
1 x capacitor
1 x relay
Misc some wire, a board, etc.
3 x transistor
1 x diode
1 x capacitor
1 x relay
Misc some wire, a board, etc.
Files
Comments
Oct 18 2007 1:24
Jose Arboleda
que sucede con el colector del transistor 2n3904 que está al aire.
Oct 18 2007 7:45
Jospfh
Can you ask the question in English?
May 23 2008 12:04
Jim
Will this have any delay for turning off? I noticed there are circuits that delay either the on or off state, does this mean that one can not do both?
Thanks
Thanks
Jul 31 2008 17:11
omarrey
can this circuit be triggered after main power is cut? For example when you turn the key in a car to the acc position it gives the radio power. when you turn the car off the radio shuts off. If i had something else in the car running on acc power is there any way to make this switch activate 6 seconds after the key is removed.
Mar 17 2009 16:16
imran
i want 5 minuts delay
Feb 22 2010 9:29
Nadeem
Plz telme any formulated equations through which we can adjust out required time for switching
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