CD4047 Inverter Circuit

The circuit below is a simple Push Pull CD4047 Inverter circuit diagram which uses only few components. It can output 100W to 150W AC power at 10V to 12V battery and centre taped transformer (12V-0V-12V, 5A).

The Integrated Circuit (IC) CD4047 is wired as an astable multivibrator. The two oscillating outputs are  out of phase, the 50K variable resistor determine the frequencies of the oscillations. The power MOSFETs (IRF3205) amplifies each half of the alternating voltage produced by the oscillator to the output power transformer which steps up the voltage from 12V DC to 230V AC. However, you can increase the output power to up to 1000W or more by adding more power MOSFETs in parallel, greater power transformer, and larger battery power bank.


Below are the values of components on the circuit diagram

  • Fixed Resistors (R1, R2, and R3)=1KΩ
  • Variable Resistor (VR)=50KΩ
  • Electrolytic Capacitor (C1)=1000µF
  • Ceramic Capacity (C2)=100nF. The code of this capacitor is 104.

If you have problem determining ceramic capacitor’s value which only have code written on it, I have you covered. You  can access table of ceramic capacitors with their number codes and values in pF, nF, and µF respectively here> ceramic capacitors number codes

Below is the CD4047 Inverter circuit diagram

CD4047 inverter circuit

See also Simple Power Inverter  Circuits 100W to 1000W. You may also want to read calculating runtime of power inverter or UPS  and battery maintenance tips. Also, you might find Batteries in Series and Parallel Calculations interesting. You might like this link as well power inverter designs

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