blackhope121
New Member
I have designed a circuit that will open an exhaust cutout based upon rpm of the cars engine.
Once the frequency (tach signal ) reaches a designated point, the circuit will open a relay.
My problem is that valve is controlled by a momentary switch. Pretty much you have to hold the button to close it or hold it to open it.
I built my circuit hoping that it was a simple on and off switch. The manufacturer said that they did not use an on/off switch because eventually the motor will blow out since its trying to continually open or close the motor past a physical boundary.
My question is does anyone know about a device that will control the motor (open, close) but then stop it once its reached a physical barrier
Notes
- the valve motor operates between 11- 16v
- the valve motor uses 22mA to open or close
- once the valve has reached its physical stopper (when i hold the button down too long) the current greatly increases and the voltage drops to about 8v
- Im using a frequency to voltage converter lm2917n connected to a relay to operate the circuit.
here is the the valve that I am using
**broken link removed**
Once the frequency (tach signal ) reaches a designated point, the circuit will open a relay.
My problem is that valve is controlled by a momentary switch. Pretty much you have to hold the button to close it or hold it to open it.
I built my circuit hoping that it was a simple on and off switch. The manufacturer said that they did not use an on/off switch because eventually the motor will blow out since its trying to continually open or close the motor past a physical boundary.
My question is does anyone know about a device that will control the motor (open, close) but then stop it once its reached a physical barrier
Notes
- the valve motor operates between 11- 16v
- the valve motor uses 22mA to open or close
- once the valve has reached its physical stopper (when i hold the button down too long) the current greatly increases and the voltage drops to about 8v
- Im using a frequency to voltage converter lm2917n connected to a relay to operate the circuit.
here is the the valve that I am using
**broken link removed**