Is it possible to put a capacitor across the coil of a relay to delay the relay switching on for about 2 seconds?
I have a circuit that needs to switch on a relay if two other relays are switched on, the problem is relay 1 switches off, I then press a button if I want my relay to come on, after a set period relay 1 switches on and relay 2 switches off (both could be on for a fraction of a second) when relay 2 switches back on I want my relay to also go on.
If I could delay my relays switch on for, say, 2 seconds this would solve the problem of seeing both 1 and 2 on for a moment.
Is it possible to do this with a capacitor and resistor?
I have a choice of 24v relay with a coil resistance of 660 ohms or a 12v coil with a resistance of 160 ohms both would have a resistor in series with the coil so that the relay could be turned on/off at points a and b - see attachment.
The power supply is 24volts.
Thanks,
Bob.
I have a circuit that needs to switch on a relay if two other relays are switched on, the problem is relay 1 switches off, I then press a button if I want my relay to come on, after a set period relay 1 switches on and relay 2 switches off (both could be on for a fraction of a second) when relay 2 switches back on I want my relay to also go on.
If I could delay my relays switch on for, say, 2 seconds this would solve the problem of seeing both 1 and 2 on for a moment.
Is it possible to do this with a capacitor and resistor?
I have a choice of 24v relay with a coil resistance of 660 ohms or a 12v coil with a resistance of 160 ohms both would have a resistor in series with the coil so that the relay could be turned on/off at points a and b - see attachment.
The power supply is 24volts.
Thanks,
Bob.
Attachments
-
5.2 KB Views: 72