# This is my first post here and my background is ME so go easy on me please. I need to amplify an analog signal that is 0-5V (w/respect to ground) to be 0-24V (two wires out, not referenced to ground) to drive a solenoid coil. The problem is my power suppl

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This is my first post here and my background is ME so go easy on me please. I need to amplify an analog signal that is 0-5V (w/respect to ground) to be 0-24V (two wires out, not referenced to ground) to drive a solenoid coil. The problem is my power supply is + and - 12V. I have two ideas about how to do this:...

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After that long subject, I was expecting more content.

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"I see an optocoupler and darlington transistor in your future..."

Luhan

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This might work.

DNA

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My Genie opened the envelope and 5V (reed?) relay (sample) dropped on the floor.

Have fun

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what is ME (master in electronics ?) Weird question for a master in electronics...:)

Assuming you need an analogic drive (so your solenoid acts proportional as a gas/liquid ventil or something similar) then you need a simple power amplifier.

+12V -(-12V) = 24V so you need a B (or AB) class amplifier. The solenoid must run AC coupled in situation described above, so I guess it must be a smart one. If you want two movement directions for the solenoid core, then you need a DC coupled and +24V and -24V supply with separate ground or a H bridge and +12V/-12V. The solenoid will be connected between amplifier output and the ground or between H bridge outputs.

If you need a digital drive (on or off) then you need a simple level converter from 0V to +12V (that's a NPN followed by a PNP) and solenoid will be mounted between PNP collector an -12V)

First you need to find exactly what do you want and then ask a complete and detailed question as someone mentioned.

greetings, Vasile

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"vasile"

" ... my background is ME so go easy on me... "

** ME = Mechanical Engineering.

........ Phil

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Or "Manufacturing Engineer".

```--
Service to my country? Been there, Done that, and I\'ve got my DD214 to
prove it.```

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