Comparison · Converters

UPS-1228-12 or Gandf 50 V 10 A digital linear PSU board

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: In test: UPS-1228-12 (100 W vs. 75); Test current: UPS-1228-12 (10 A vs. 3.8).

Model	UPS-1228-122024Read review →	Gandf 50 V 10 A digital linear PSU board2018Read review →
Voltage, V	28	50
Current, A	8.3	10
In test, W	100	75
Test current, A	10	3.8
Review conclusion	With reservations	With reservations

Only in one review: Power 100 W (UPS-1228-12); Under load 12 V (Gandf 50 V 10 A digital linear PSU board); Ripple 240 mV (UPS-1228-12); Efficiency 98 % (UPS-1228-12); Temperature rise 106 °C (UPS-1228-12); Price 40 $ (UPS-1228-12).

UPS-1228-12: The board showed high efficiency and exceeded its rated power, but it is expensive and has an awkward auto-start behavior.

Gandf 50 V 10 A digital linear PSU board: The board works and is fairly easy to reproduce, but has layout flaws and inaccurate current readings.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.