Electronics and technology blog    /    Reviews    /    Power Supplies    /    Page 12

<!--image_begin:https://www.kirich.blog/uploads/posts/2015-04/1428184680_12-volt-6-8-amper-blok-pitaniya-kotoryy-priyatno-udivil.jpg|left|12 Volt, 6–8 Amp power supply that pleasantly surprised me.--><!--image_end--> In one of my reviews, I showed how to build a decent power supply yourself and complained about how rarely good power supplies are available for sale. I liked the look of this one right away, but since pictures can be deceiving, I decided to take a closer look and put it to the test. The review includes a description, photos, tests, and an analysis of a small design flaw. Read on after the jump.

Recently, single-board mini computers such as Cubie, Raspberry Pi, and the like have become quite popular (in certain circles). But sometimes enthusiasts use these devices to build NAS storage, torrent downloaders, or something similar. These applications usually use high-capacity 3.5-inch hard drives, which in turn require two supply voltages: 12 V and 5 V. This power supply was intended for just such an application.

I got a similar power supply, and naturally I wanted to see what they have in common and what’s different. I’ll also share my own power supply design. If you’re interested, read on.

Many of you probably remember my saga of building a DIY bench power supply. But I've been asked more than once for something similar, only simpler and cheaper. In this review, I decided to show an alternative version of a simple adjustable power supply. Come on in—I hope you'll find it interesting.

I often use various power supplies in my work, mainly to power video surveillance systems. I mostly use products from a well-known brand, but they’re quite expensive these days, so I wanted to try (and test) an alternative high-power 12 V power supply. Read on for the description, photos, and conclusions.

I had a small homemade power supply that I used to test and power various little projects. But I built it a long time ago, and it had become outdated both mentally and physically. At first I wanted to buy a ready-made replacement, but “that’s not how we do things,” so I decided to build one myself again.

I spotted this power supply on the ChinaBay website and wanted to take a closer look. Since they ended up providing it to me for free, it would have been sacrilege not to experiment with it. Anyway, more after the jump.

I got so into experimenting with LED lighting and modifying light fixtures that when I was offered a product to test, I couldn't resist and decided to try a factory-made LED driver. If you're interested, read on to see how the idea developed.