Summary of Peaktech 6225A review
The Peaktech 6225A power supply offers good value with high display resolution and low noise. Testing confirms precision is reliable above 1% of full scale for both voltage (0.2V+) and current (50mA+). Under load, it consumes minimal power when idle or at 25V no-load, and the fan activates during stress tests at 30V and 5A.
Parts used in the Peaktech 6225A Review:
- Peaktech 6225A power supply
- Calibrated multimeter
- PSU burner
I got a Peaktech 6225A power supply to power some things, as it seemed like a good deal, going beyond what one might find normally in these types of supplies: more display resolution and supposedly, lower noise. For this price, this supply is a good deal compared to other similar ones on the market. Let’s see how it performs.
You can even grab one on Amazon.de or Amazon.frthrough affiliate links which helps me support this website, while offering you the same low price.
Voltage and current set
For the first test, I have checked if the supply is really delivering on that 1mA / 10mV precision, using a calibrated multimeter. The results are below: for the voltage setting, the power supply seems to hold on pretty well from about 0.2V and higher, below which it is not that much control. On the current side, things are similar, current cannot be very accurately set below about 50mA. In both cases, the precision starts to be there from about 1% of the full scale and I think it is perfectly fine for this kind of product.
Burn test
First off, the power consumption test: the power supply burns 4.2W while on and with the output turned OFF. If the output is turned ON and set to 25V and no load, it consumes 5.2W, which I think is decent.
Of course, I had to grab my PSU burner to start stressing this guy out. I set the supply for 30V and 5A load and let it run for half an hour. The fan quickly started.
for more detail: Peaktech 6225A review
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Does the Peaktech 6225A maintain precision at low settings?
No, precision starts being effective from about 1% of full scale, with voltage control below 0.2V and current below 50mA being less accurate. -
How much power does the supply consume while on but unloaded?
The unit burns 4.2W while on with the output turned OFF. -
What is the power consumption at 25V with no load?
It consumes 5.2W when set to 25V with no load connected. -
Does the fan activate during stress testing?
Yes, the fan quickly started when the supply was stressed at 30V and a 5A load. -
Can I accurately set the current below 50mA?
No, current cannot be very accurately set below approximately 50mA. -
Is the voltage setting precise down to 0V?
The supply holds well from about 0.2V and higher, but has limited control below that threshold.
