Laurens-wuyts wrote:You could use an opamp at 1 gain.
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Laurens

This is a great idea! I just wish I thought of it. Thanks

If that is just a simple on off control valve then all you need is a simple relay or transistor circuit. Give a link to the data sheet of the valve. Unfortunately it's a proportional control valve, so I need the analog signal. These things open to varying amounts based off the input. Here is the da...

I am trying to drive a control valve from my raspberry pi with an analog output. This load requires a DC analog signal of 4.7-6 VDC, at average dc currents of 100mA. I have a DAC, the MCP4725, that I have been using for other applications, but the chip can only output 25mA as far as I know. Basicall...