This DC to AC inverter circuit operate based on unstable multivibrator does. In this inverter circuit, IC CD4047 is determined as a heart of unstable multivibrator, due to the fact this IC type provides a complementary output which has opposite phase to another (pin 10 and 11), and has 50 % duty cycle that satisfy to create a pulse for inverter.
To be able to boost the current out of multivibrator so adequate to produce a higher AC power too, then we have to work with MOSFET IRFZ44. IRFZ44 delivers out high current to drive a step-up transformer, so AC power is ready at the high voltage side of transformer.
This circuit is known as as simple DC to AC inverter since the output have not a sinusoidal signal yet, so there are lots of harmonic signal at the output. To suppress this signal we have to use a filter just like a capacitor C. Because of this simplicity this circuit is appropriate only for lighting demand. To generate a sinusoidal DC to AC inverter, it is possible to use a PWM signal for driving a step-up transformer.
About Inverter
An inverter is an power electronic device that converts direct current (DC) to alternating current (AC); the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits. Solid-state inverters have no moving parts and are used in a wide range of applications, from small switching power supplies in computers, to large electric utility high-voltage direct current applications that transport bulk power. Inverters are usually used to supply AC power from DC sources such as solar panels or batteries. It will be useful for emergency electric source
An inverter is an power electronic device that converts direct current (DC) to alternating current (AC); the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits. Solid-state inverters have no moving parts and are used in a wide range of applications, from small switching power supplies in computers, to large electric utility high-voltage direct current applications that transport bulk power. Inverters are usually used to supply AC power from DC sources such as solar panels or batteries. It will be useful for emergency electric source
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