Tuesday, July 20, 2010

A very simple Inverter circuit - 12 volt DC to 120 volt AC

This is a very simple inverter circuit. This Inverter takes 12 volt d.c and steps it up to 120 volt a.c. The wattage depends on which transistors you use for Q1 and Q2, as well as the "Amp Rating" of the transformer you use for T1. This inverter can be constructed to supply anywhere from 1 to 1000 (1 KW) watts. If Q1, Q2 are 2N3055 NPN Transistors and T1 is a 15 A transformer, then the inverter will supply about 300 watts. Larger transformers and more powerful transistors can be substituted for T1, Q1 and Q2 for more power.


Parts List:

C1, C2 --------------------- 68 uf, 25 V Tantalum Capacitor

R1, R2 --------------------- 10 Ohm, 5 Watt Resistor

R3, R4 --------------------- 180 Ohm, 1 Watt Resistor

D1, D2 --------------------- HEP 154 Silicon Diode

Q1, Q2 --------------------- 2N3055 NPN Transistor (see "Notes")

T1 ---------------------------- 24V, Center Tapped Transformer

Others:

Wire, Case, Receptacle (for output)

Fuses, Heatsinks, etc.



Note: Don't try to connect this inverter with loads motors .

Sourch