I have a couple of Chinese programmable lab power supplies. Both switch mode power supply (SMPS) systems are rated for 110V-220V AC input. But the UNI-T UTP1306 power supply has an input voltage ...

This DIY 12V to 220V DC to AC converter is built with CMOS 4047 that is the main component of this small voltage converter that transforms a 12VDC into ...