R
Rick
- Jan 1, 1970
- 0
I'm trying to design a pulse counter and frequency to voltage
converter, both use the same pulse, which is variable, to determince
when to trigger another circuit that will turn off SSR. This SSR will
be triggered by a momentary switch to turn on & needs to turn off when
either 730 pulses have been received if the pulse train is less than .
8 pulses/second or 10 seconds after the pulse train is pulsing at or
faster than .8 pulses/second (which ever comes first). I've thought of
using a synchronus counter feeding an AND gate for pulse counter The
other a freq to voltage converter that triggers a voltage comparator
that then feeds a 555 10 second timer. This circuit needs to be able
to be stopped with a seperate momentary switch.
I'd like to be able to do it with lots less components like a
microcontroller, but I've never designed & programmed one of these.
Can anyone enlighten on this & the best place to find info?
Thanks,
Rick
converter, both use the same pulse, which is variable, to determince
when to trigger another circuit that will turn off SSR. This SSR will
be triggered by a momentary switch to turn on & needs to turn off when
either 730 pulses have been received if the pulse train is less than .
8 pulses/second or 10 seconds after the pulse train is pulsing at or
faster than .8 pulses/second (which ever comes first). I've thought of
using a synchronus counter feeding an AND gate for pulse counter The
other a freq to voltage converter that triggers a voltage comparator
that then feeds a 555 10 second timer. This circuit needs to be able
to be stopped with a seperate momentary switch.
I'd like to be able to do it with lots less components like a
microcontroller, but I've never designed & programmed one of these.
Can anyone enlighten on this & the best place to find info?
Thanks,
Rick