I need help trying to figure out the best way to setup an "on-the-fly" adjustable voltage trigger (sensitive down to .02V) 12V relay.
I have setup many 12v trigger relays including low voltage trigger setups (sensitive .2V) , but never one that had to be adjustable or as sensitive.
For those of you wondering, I have to tap into a car TPS (Throttle Position Sensor) to handle other car events based on pedal position.
Specifically, a valve in the exhaust that would open and closed depending on TPS voltages.
Any relay or circuit used would be diode isolated to prevent feedback back into the car system.
I need help with finding the easiest way to implement this. Please remember that the low-voltage trigger will have to be adjustable on the fly and is a constant voltage.
EDIT: This might be a 2 part problem because:
1) 12V Triggered Valve would open with TPS voltage greater than set adjustable threshold
2) 12V Triggered Valve would close with TPS voltage less than set adjustable threshold.
I have setup many 12v trigger relays including low voltage trigger setups (sensitive .2V) , but never one that had to be adjustable or as sensitive.
For those of you wondering, I have to tap into a car TPS (Throttle Position Sensor) to handle other car events based on pedal position.
Specifically, a valve in the exhaust that would open and closed depending on TPS voltages.
Any relay or circuit used would be diode isolated to prevent feedback back into the car system.
I need help with finding the easiest way to implement this. Please remember that the low-voltage trigger will have to be adjustable on the fly and is a constant voltage.
EDIT: This might be a 2 part problem because:
1) 12V Triggered Valve would open with TPS voltage greater than set adjustable threshold
2) 12V Triggered Valve would close with TPS voltage less than set adjustable threshold.
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