bravo1234
Newbie level 5
I want to write a code for a system which detects the absence of AC signal ,received after the digital filter (sampled @ 200khz).
My ideas
1. level detector - If level is zero - no ac signal.(I liked it the most but struggling to come up with logic:bang
2. Continuously measure frequency of signal,but would need to increment counter for 1 second ,then if the signal disappears I should be able to detect it immediately and not wait for one second to be over.
3. Peak to peak voltage - No Ac signal means zero P-P voltage.
4. edge detect the rise and fall - No edge will mean no ac signal but it will falsely detect during the time between edges.
5. Use a DAC and analog circuit for detection.bored
My ideas
1. level detector - If level is zero - no ac signal.(I liked it the most but struggling to come up with logic:bang
2. Continuously measure frequency of signal,but would need to increment counter for 1 second ,then if the signal disappears I should be able to detect it immediately and not wait for one second to be over.
3. Peak to peak voltage - No Ac signal means zero P-P voltage.
4. edge detect the rise and fall - No edge will mean no ac signal but it will falsely detect during the time between edges.
5. Use a DAC and analog circuit for detection.bored