Here I show how to make the Power stage of an homemade inverter. I’m using the following,
- Old UPS transformer
- 2x Alluminium Heatsink
- 2x N-MOSFET (IRF540N, P55NF06, B150NF55 etc)
- Screws, spade terminals, wires, etc
First we need to place the MOSFETs in the heatsinks in appropriate place so that the heat tab i.e, metal part of the MOSFET body is as close to the mid area of the heatsink. This way more heat will be dissipated by the heatsink.
Now this is ready to be connected to a battery and the connector can be connected to an inverter oscillator board like 74LS112 Inverter Oscillator.