12v to 230v inverter circuit diagram

 12v dc to 230v inverter circuit diagram;

12v to 230v inverter circuit diagram

 Main Sections of the Circuit

1: Power Input Section

The circuit is powered by +12V DC (U1 Power In).

Resistors R1 (1kΩ) provide biasing for the transistor stage.

A diode is connected for protection and proper signal direction.

2: Oscillator Stage (Switching Signal Generator)

Transistors Q2 and Q3 (2SC1815) form an oscillator circuit.

Resistors R2, R3 (220Ω) help in feedback and timing control.

This section generates alternating switching pulses that turn the MOSFETs ON and OFF alternately.

3: Driver Stage

Resistors R4 (330Ω) and R6 (220Ω) limit the gate current of the MOSFETs.

These resistors ensure safe and stable switching operation.

4: Power Switching Stage

Power MOSFETs Q1 and Q4 (IRFZ44) act as high-current switches.

They alternately switch the 12V supply to each half of the transformer primary winding.

R5 (330Ω) provides proper gate biasing and stability.

5: Transformer Output Section

A center-tap transformer (U4) is used.

The center tap is connected to +12V.

The MOSFETs switch the two ends of the primary winding to ground alternately.

This produces an alternating magnetic field in the transformer, stepping up 12V to approximately 230V AC at the secondary.

⚡ Working Principle

The oscillator section produces alternating pulses.

These pulses drive the MOSFET gates.

The MOSFETs switch ON and OFF alternately.

The transformer converts low-voltage DC switching into high-voltage AC output.

🔎 Key Features

Simple inverter design

Uses commonly available components

Suitable for small loads (depending on transformer and MOSFET rating)

Output is typically square wave AC, not pure sine wave.

Chahat✍

Location: Ramala, Uttar Pradesh 250623, India

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