Transistor Output Converter Help

[raykur]

Thanks for the reply. I've tried it but the it stays 24 volts all the way. Even when it trigger or the set point is reached. It should go to zero. I am using the same power supply.

Any advice ?

 

[raykur]

Hi Dan,

Can I use a transistor instead of a relay ? If yes do you know the type of transistor to drive the solenoid valve. 24 volts, 1A solenoid valve.

I am trying it right now, but it did not work with the solenod attached to it.

It works fine without the solenoid.