Tag: failure trace

Micro usb male to female 1 to 2 Splitter Phone sync data charge Cord Y Splitter (WHL #23)

Uuuh, I’m lazy today. Let’s review an USB cable :mrgreen:

Well, it’s not one of your standard A to B cables. It’s a splitter extension cable for Micro USB, basically violating all USB specs :cool: . I bought it as I’ve been using two phones in parallel for quite a while now – I can’t let go of my N900 with the nice QWERTZ hardware keyboard and full system access, but I’m also running a Galaxy S5 for all that modern Android rubbish (including BLE support for my GoFar). So this cable acts as a Y splitter from Micro USB (female) to two Micro USB males, effectively saving me the standby power (and socket space) of one charger. […]


250W DC-DC Boost Converter Adjustable 10A Step Up Constant Current Power Supply Module Led Driver For Arduino (WHL #21)

What do you do when none of your existing power supplies can provide enough power for some decent LED module? Yeah, right, you buy a bigger one!

So I did. I had some 100W/150W DC-DC converters laying around, but most of them cap at around 36V. And with the very nice Toshiba E-Core 92W LED module that wants 40V or more, that’s just not good enough (same goes for the popular 25W/50W/100W LED modules!). So the new one in my collection is this:

Some more shots:

I bought it on AliExpress back in mid-January for 4.31€ including shipping.

Tech specs are, according to the seller: 250W total output power (boost = step-up only), non-isolated output, input current 8A or 10A with additional heat sinking. […]