Which DC power supply do I need?
Vartech DC power supplies, supplied by CIE Instruments as authorised distributor. Pick a starting point or type your own voltage and current to see the models that fit.
Power Supply Finder
Enter your load, see what fits
Tell us the voltage and current your equipment needs. We check all 37 Vartech models and show the ones that fit, closest fit first.
Tip: choose a model with about 20% spare voltage and current over your load, so it is not running at its limit. Ratings shown are the maximum output of the main variable channel. Check the full specification page before ordering.
Choosing between linear, switch-mode and programmable
Linear supplies are transformer-based. They are heavier but have the lowest ripple and noise, which suits sensitive analogue and audio work.
Switch-mode (SMPS) supplies are light and compact for their power, and the SR series adds a PC interface for higher power loads.
Programmable supplies add memory sets, list mode and software control for repeatable and automated testing.
Want to read more first? See the linear vs SMPS guide or browse the full DC power supply range.
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