Products > Test Equipment
Benchtop Variable AC Power Supply Recommendation?
ralphrmartin:
While there seem to be endless choices of benchtop DC power supplies, I'm having a hard time finding a benchtop variable AC power supply that will provide say up to 30V at 1A or similar, preferably with current limiting. I'm looking for a budget item, not a high-precision device.
Can anyone recommend such an item, or better still, point me at where to purchase one in the UK?
bdunham7:
Do you mean mains-derived single frequency (50Hz for you) output or variable frequency output?
ralphrmartin:
Mains frequency was what I had in mind (as presumably that will be cheaper, and I have no specific need for a variable frequency).
bdunham7:
The traditional solution is a variac and perhaps a step-down transformer. More sophisticated AC power supplies that would resemble common DC types as far as voltage and current regulation, digital display, etc are not common and not inexpensive. I use a BK 1655 AC Power Supply with an appropriate step-down transformer as needed. There isn't any adjustable current limiting and load regulation is done manually. You can use a large transformer with a small fuse or breaker if you need a stiffer supply with current protection.
electr_peter:
There are some laboratory AC power supplies from PeakTech and other manufacturers on Reichelt site. Maybe they ship to UK. For example, PEAKTECH 5995 AC/DC power supply unit for current and voltage
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