About: Awesome Electronics Mini Projects are share and explain how they are work.

In this project i will show you a Simple Inverter circuit or a Mosfet driver circuit. This Inverter circuit step-up the 12 volt DC input to 100 watt, 220 volt, 50Hz AC output using a Transformer.

Step 1: Watch the Video!

Here you can see the complete project.

Step 2: List of Components!

  1. CD4047 ic (1 pcs),
  2. IRFZ44 N-Channel MOSFET (2 pcs),
  3. 100 ohm Resistor (2 pcs),
  4. 1k Resistor (1 pcs),
  5. 20k potentiometer (1 pcs),
  6. 0.22uf Capacitor (1 pcs),
  7. 25v, 2200uf Capacitor (1 pcs),
  8. 2 pin connector (1 pcs),
  9. 3 pin connector (1 pcs),
  10. Step-down Transformer (3Amp,12-0-12v/230v) (1 pcs),
  11. PCB bord (1 pcs),
  12. 12 volt, 7Ah lead-acid battery (1 pcs).
  13. Wires (As per required),

Step 3: Create the Circuit!

Here you can find the schematic of circuit and pictures of my completed perfboard. feel free to use it as a reference.

WORKING: CD4047 is a low power CMOS astable/monostable multivibrator IC and here it is wired as astable multivibrator. The operating frequency of the astable multivibrator is set to 50 Hz (In India, every electronic devices are work 200-250 volt and 50 Hz frequency) using 20k potentiometer (R3).

The output Pin 10 is conncted to gate of Q1 n-channel power MOSFET and pin 11 is connected to gate of n-channel power MOSFET. In the circuit R1 and R2 prevents the loading of the CD4047 IC by the respective n-channel power MOSFETs.The N-Channel power MOSFETs will switch according to the pulse from the ic.

The transformer used here is an ordinary step-down transformer, which is connected in Inverted manner(means that, the primary of step-down transformer can be treated as secondary for this inverter project).

When pin 10 is high Q1 conducts and current flows through the upper half of the transformer primary, which give positive half of the output AC voltage.

When pin 11 is high Q2 conducts and current flows in opposite direction of lower half of the transformer primary, which give negative half of the output AC voltage.

Step 4: Success!

You did it! You just built your own 100 watt inverter!

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