Ah the curse of the Chinese Electronics strikes again. These large DC-DC boost converters have become very common on the likes of AliExpress & eBay, and this time my order has arrived DOA… On applying power, the output LED lights up dimly, and no matter how I twiddle the adjustment
Continue readingChinese “1200W” DC-DC Boost Converter DOA Fix
My other monitors are a different model, and have a slightly different main PCB inside, but the process is mostly the same for converting these to 12v supply. In this monitor type, there is only a single board, with all the PSU & logic, instead of separate boards for each
The original LM2577 based regulators I designed into my mobile battery pack turned out to be insufficient for requirements, therefore they have been replaced with higher capacity regulators. The 12v regulator (left) is a muRata UQQ-12/8-Q12P-C SEPIC converter, providing a max of 8A at 12.1v DC. The 12v rail is