4-volt simple inverter: In mini electronic projects, conversion of DC voltage to AC voltage is a very interesting and common problem. In most circuits, we observe that almost all designs of circuits take the AC input and give DC output. But, as we want to change the circuit from DC to AC, a DC-to-AC converter circuit is used. The converter/inverter is required for this purpose. So, to convert the DC to AC, a converter circuit is used.
In this mini electronics project, I am going to make a very simple but very, very interesting circuit. This circuit is 4 volts DC to 220 volts AC.I have used very simple and scraped components to build this circuit. These components are found in mobile chargers and also in the CFL circuits.
4-volt simple inverter circuit diagram
Components Required: 4-volt simple inverter
- Transformer from old mobile charger circuit
- a 10- to 110-ohm resistor
- 13005 or equivalent Transistor
- 4.5 µF capacitor from old CFL circuit
- 4-volt batteries
- some pieces of Wires
MJE 13005 Transistor Point
Transformer (from mobile phone charger or equivalent)
In this circuit, we can use a mobile phone charger transformer. Keep in mind all mobile phone charger circuits have a different structure of the transformer. So you must check the transformer structure before using it in this mini 4 to 220 V inverter.
Measurement of This type of transformer
You can measure this transformer by using a multimeter. We must use the maximum ohm coil of the transformer for output.
If it does not work through this connection, then just make a little change. The resistor connection is replaced with point no. 6 to point no. 5. The jumper of + changes from point no. 5 to 6. The circuit diagram is given below.
Alternate Circuit Diagram for 4v inverter
If the above circuit does not work, then change the connections like the given below circuit diagram; it will work 100 percent. It is a very simple 4-volt simple inverter. That is why its power is very low, so it uses a minimum number of watts as output to get the result.
Note: Because it is a developed transformer for the mobile charger, it is a very low-power transformer. You can make your own transformer for better results from this inverter.Because it’s very short with few components, the power inverter, which is a transistor, may heat up. So use a heat sink with a transistor.