500W low cost 12V to 220V inverter

Using this circuit you can convert the 12V dc into the 220V AC. In this circuit, 4047 is used to generate the square wave of 50Hz and amplify the current and then amplify the voltage by using the step transformer.

The described circuit functions as a DC to AC inverter, specifically designed to convert a 12V DC input into a 220V AC output. The core component of this inverter is the 4047 integrated circuit (IC), which is utilized to generate a square wave signal at a frequency of 50Hz. This frequency is standard for many AC applications, particularly in regions where the mains supply operates at this frequency.

The operation begins with the 4047 IC, which can be configured in either astable or monostable mode. In this application, it is set in astable mode to produce a continuous square wave output. The frequency and duty cycle of the output waveform can be adjusted by selecting appropriate resistor and capacitor values connected to the 4047, ensuring that the output waveform closely matches the characteristics of the desired AC signal.

Following the generation of the square wave, the output from the 4047 is then fed into a transistor amplifier stage. This stage is crucial as it increases the current capacity of the square wave signal, allowing it to drive the subsequent transformer effectively. Commonly, power transistors or MOSFETs are used in this amplification stage, configured in a push-pull arrangement to ensure that both halves of the square wave are utilized efficiently.

After amplification, the high-frequency square wave is fed into a step-up transformer. The transformer is designed to increase the voltage from the amplified square wave to the desired 220V AC level. The turns ratio of the transformer is a critical parameter; it must be chosen based on the required output voltage and the input voltage to ensure proper operation. The transformer also provides electrical isolation between the low-voltage DC side and the high-voltage AC output, enhancing safety.

The output from the transformer will be a square wave AC signal at 220V. It is important to note that this output is not a pure sine wave, which may be necessary for some applications. However, for many inductive loads, the square wave output can be sufficient, and additional filtering or wave shaping may be applied if needed.

In summary, this circuit effectively converts 12V DC to 220V AC using the 4047 IC for waveform generation, a transistor stage for current amplification, and a transformer for voltage amplification and isolation. Proper component selection and circuit design are essential for ensuring reliable operation and safety in the application of this inverter circuit.Using this circuit you can convert the 12V dc in to the 220V Ac. In this circuit 4047 is use to generate the square wave of 50hz and amplify the current and then amplify the voltage by using the step transformer. 🔗 External reference