Circuit To Count Fast Voltage Presence...

[Mhz1]

Hi, I'm Interested In designing a circuit that is capable of reading (Counting) voltage presence for a dc ground reference that will be shuting off and on...

I dont believe the lowest point of voltage reference will fall to zero, but anywhere from 100 millivolts to 12v.

any Reference or Ideas of such a circuit? Thanks for any help.

 

[ante1]

Hi Mhz,

More details please. Like current and if you need it to be separated (isolated) from the supervised object and so on

 

[Mhz1]

Hello Ante, once again.. .. Yes, the circuit tester I am interested in designing will be used for checking Pulse-Type Voltage from an Automotive Ignition Control Module.. I do understand that it's easier to go buy one, but I want to design My own...

My knowledge is that The Voltage that sends the Signal to the Coil Pack from the Module, is a Negative Voltage. I am designing this project to check for faulty Control modules (Pulsating or Not). As far as Amperage Draw, I belive for these 'Auto' devices, it should possibly be anywhere from 2 amps and up.. I'll have to measure and check..

Anyhow, thanks for the response and let me know of any help you can provide, thanks...

 

[Mhz1]

by the way Ante, or any other helper, the circuit doesn't have to be a counter, but anything that will allow me to capture the results without me looking at it. That is why I suggested a Counter..

Sometimes it's hard to monitor the tester while cranking the engine etc...

 

[ante1]

Hi Mhz,

If I understand this, you just what to know if there is a pulsetrain or not? You don

 

[Mhz1]

Yes Ante, that's correct.. Just something to verify the Pulstrain of the Module, and preferably a circuit that will hold the data to show me that there is a Pulse comming from the Module.

 

[ante1]

Mhz,

Maybe you could use something like this: http://www.uoguelph.ca/~antoon/circ/probe2.htm or if you can

 

[Mhz1]

Great References Ante, Now I will have to somehow convert the actual Module unstable voltages and current into a definable output for the Circuits You Referenced me to, since they are sensitive digital type circuits... But This IS GREAT! Thanks Alot Once Again... 8)