Here is a simple 12 V inverter for using a small soldering iron (25W, 35W, etc) in the absence of mains supply. It uses eight transistors and a few resistors and capacitors. Transistors T1 and T2 ...

Power inverters are an essential tool for folks who need to power up their gadgets while on the go. Be it during camping, traveling, or just needing to charge your mobile in your car; a power inverter ...