18w converter 12 to 220V

An 18W converter (12V DC to 220V AC) is a DC to AC power inverter that steps up a low voltage DC input (12 volts)—commonly from a battery or solar panel—to a high voltage AC output (220 volts), suitable for powering small household or electronic appliances.

Here’s a detailed description:

🔌 18W 12V to 220V Converter (Inverter)

✅ Function:

Converts 12V DC (Direct Current) input to 220V AC (Alternating Current) output, delivering up to 18 watts of power.

📦 Specifications:

• Input Voltage: 12V DC

• Output Voltage: 220V AC (sine wave or modified sine wave)

• Output Power: Up to 18W

• Frequency: 50Hz (standard for most countries using 220V)

• Conversion Efficiency: Typically 80-90%

• Cooling: Passive (heatsinks) or active (small fan)

• Protection Features:

  • Overload protection

  • Short-circuit protection

  • Over-voltage/under-voltage protection

  • Thermal shutdown

⚙️ Basic Working Principle:

1. DC Input Stage:

   • A 12V DC source (like a battery) feeds the circuit.

2. Oscillator Circuit:

   • Converts DC into a high-frequency AC using transistors or MOSFETs.

3. Step-up Transformer:

   • Boosts the voltage from 12V AC (high-frequency) to about 220V AC.

4. Output Filtering & Regulation:

   • Rectification and shaping stages filter the waveform to produce a cleaner sine or modified sine wave.

🛠️ Common Applications:

• Small fans

• LED bulbs

• Chargers

• Radios

• Low-wattage household electronics

• DIY solar projects