I been looking for an off the shelf power supply that can adjust its output voltage to compensate for losses, in my case in transmission line. Searching on DigiKey, I narrowed down my search to power supplies with remote sense feature. For example EMH250PS18 states "Remote Sense Compensates for 0.5 V total voltage drop", another vendor and model MVPS600-1015 state "Output Adjustability +/-3%". In practice I see it adjusting its output to ~5V over nominal 15V. However, adjusted voltage drifts over time, which worries me that it eventually will drop too low for my device to work. At 15V output 0.5V doesn't give me much in terms of current I can deliver to the load. Ideally, I would have larger cable but for now I have to work with what I have which is 24AWG. Anyhow, does anyone know which of the shelf power supply can adjust its output to say +/-5-10V? Is there other ways to compensate for losses in transmission line? Ideally without building custom board.
A straightforward way to compensate for transmission losses is to transmit a higher voltage and then put a DCDC step down converter at the far end. The higher voltage means lower transmission losses, and the regulation on the step down converter automatically compensates for any line loses resulting in a constant voltage regardless of load.
Since you only need 15v at relatively low current, you could buy an inexpensive 24v power supply and Buck converter for a few dollars on digikey, Amazon, etc.