MikeHS
Electrical
- Jun 13, 2010
- 5
Hello,
Need to design or come up with a 10 to 20 second delay timer that auto-resets each time a +12 to 24VDC is applied.
The timer source voltage (Vcc) can be a separate input, say +5V, or the same +12 to 24V. The one shot output needs to be a positive pulse to drive an SCR gate terminal...but only after 10 to 20 seconds of STEADY 12 to 24V input. Short bursts of +12 to 24VDC need to be ignored.
I would appreciate any help, ideas or suggestions.
Thanks for thoughts.
Mike....mwh87120@yahoo.com
Need to design or come up with a 10 to 20 second delay timer that auto-resets each time a +12 to 24VDC is applied.
The timer source voltage (Vcc) can be a separate input, say +5V, or the same +12 to 24V. The one shot output needs to be a positive pulse to drive an SCR gate terminal...but only after 10 to 20 seconds of STEADY 12 to 24V input. Short bursts of +12 to 24VDC need to be ignored.
I would appreciate any help, ideas or suggestions.
Thanks for thoughts.
Mike....mwh87120@yahoo.com