This is a basic and very simple low power inverter to convert 12V DC to 120V AC. How much power this simple inverter can handle the load depends the transformer current value and transistors you use for Q1 and Q2.

Inverter 12V DC to 120V AC Component 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
Misc:
Wire, Case, Receptacle (for output)
Fuses, Heatsinks, etc.

Note: Don’t try to run inductive loads (motors) using this inverter.
More explanation about how its work and the component list about this simple power inverter, visit this page

This inverter 12V DC to 240V DC can be used to power electric razors, stroboscopes and flash tubes, and small fluorescent lamps from a 12 volt car battery. In contrast to the usual feedback oscillator type of inverter, the oscillator of this inverter is separate from the output stage, which allows easy adjustment of the oscillator frequency to suit different applications.

The oscillator circuit consists of a 555 timer connected as an astable multivibrator. The inclusion of D1 ensures that the duty-cycle of the squarewave output is maintained at about 50%. The output of the 555 drives the base of T1 which switches current through one half of the primary of the transformer. T2 is driven from the collector of Tl and thus switches current through the other half of the transformer winding on opposite half cycles of the drive waveform. Zener diodes D4 and D5 protect Tl and T2 from any high-voltage spikes generated by the transformer.

The voltage applied to the transformer primary is stepped up and the required high output voltage appears across the secondary winding. Depending on the application the secondary voltage may or may not be rectified.

Download the full explanation about this inverter 12V DC to 240V DC circuit:

Inverter 12VDC to 240VDC Project

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