I have two relays that I want to trigger from the same pulse from another controller. The pulse is a square wave 5V peak 0.10 second in duration (adjustable in 0.10 second increments).
However I want one relay to be delayed slightly, perhaps 0.05 seconds. I connected the controller supplying the pulse to one relay and then connected the same controller output through a 100 ohm resistor in series with a 1000 microfarad electrolytic capacitor (negative side toward the relay input) which should have produced a 0.1 second delay. However I didn't see any delay. I tried a 330 ohm and 510 ohm resistor and still no delay. I don't know the voltage level at which the delayed relay will trigger but it's somewhere under 2.08 volts. What's wrong with this circuit?
If I calculated this correctly, and I assume that the relay triggers at 1.0 volts, a 62 ohm resistor with the 1000 mf capacitor should attain 1.0 volts in 0.1 second (with 5 volt peak).
Thanks in advance.
However I want one relay to be delayed slightly, perhaps 0.05 seconds. I connected the controller supplying the pulse to one relay and then connected the same controller output through a 100 ohm resistor in series with a 1000 microfarad electrolytic capacitor (negative side toward the relay input) which should have produced a 0.1 second delay. However I didn't see any delay. I tried a 330 ohm and 510 ohm resistor and still no delay. I don't know the voltage level at which the delayed relay will trigger but it's somewhere under 2.08 volts. What's wrong with this circuit?
If I calculated this correctly, and I assume that the relay triggers at 1.0 volts, a 62 ohm resistor with the 1000 mf capacitor should attain 1.0 volts in 0.1 second (with 5 volt peak).
Thanks in advance.
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