0-10v lighting control

JustinW

Hi,
I'm looking to control some 0-10v lighting circuits. Is there any devices that I could connect and program with a basic stamp module that will allow me to control resistance of a circuit and therefore control a 0-10v output.

Cheers

Phil Pilgrim (PhiPi)

How much current does the 0-10V output have to produce? IOW, does it have to drive the lights directly, or is it just a control input for the light driver?

-Phil

JustinW

It's only to signal the lighting control gear and uses relatively minimal power max 5 mA. The lighting itself will be powered from a separate supply.

Phil Pilgrim (PhiPi)

Here's a circuit that will give you a 0-10V output from a BASIC Stamp:



Use the Stamp's PWM output to charge the cap to a 0-5V value. The op amp will double that voltage to give you the required 0-10V range. Be sure to mount all of this stuff close to the lighting controller. The LM358 is not designed to drive a long cable. Also, with a voltage output circuit, resistive losses in a cable would limit the top end of your voltage range.

-Phil

JustinW

Thanks so much for this I will give it a go.

JustinW

Thanks so much for this I will give it a go.

Phil Pilgrim (PhiPi)

I didn't show filter or bypass caps on the +15V supply, but don't forget to add them: at least 10uF at the +15V input to the board and 0.1uF at the op-amp's supply pins. Good luck, and let us know how it works out!

-Phil

Spiral_72

Yes, thank you [noparse]:)[/noparse] That's a good circuit to have!

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"puff"...... Smile, there went another one.