Skip to content

How does a pure sine wave inverter work?

  • by

An inverter, an electronic device that converts direct electricity (DC) into alternating current (AC), is called an inverter. A sine wave is a continuous oscillation that describes a smooth repetitive oscillation. The sine wave mathematically describes AC power produced by rotating machines. It is the best waveform to transfer AC power with low harmonic distortion. Pure sine wave converters produce power equal to or better than that at home. They use sophisticated technology to protect the most delicate electronics. It can be used to power digital microwaves, TVs, refrigerators and laptops as well as other electronic equipment. Pure Sine Inverters can power almost any AC appliance without risk.
How does a pure sinewave inverter work?

Today, a greater number of people use a pure sinewave ups inverter. This is an electronic device that converts direct current (DC), to alternating currents (AC). The specific design of the circuitry or device determines the input voltage and frequency as well as the overall power handling. It allows for reliable electricity supply to various appliances, even if they are disconnected from the power grid. An inverter’s operation is split into three stages: an oscillator, an amplifier, and an output transformer stage.

Oscillator stage

Inverters generate oscillating pulses by using an IC circuit at this stage. These oscillations generate alternate voltage peaks at a certain frequency. They are extremely weak and cannot power up high current output transistors.

Booster/amplifier stage

The alternative voltage is generated by pure sinewave inverter oscillator, amplified to high-current levels in this stage. Amplified electricity comes in AC form. The voltage is too low to power an electrical appliance. The amplified voltage can be applied to the secondary winding of an output transformer to increase the voltage so that it is suitable for electric appliances.

Output transformer stage

The magnetic induction of two transformer windings causes the AC to DC transformer to reduce or step down the power supply to lower AC levels. A power inverter’s transformer operates in the same way but reversed. The output transformer stage’s secondary windings receive low-level AC power from an amplifier stage. This results in an ininduced stepped up voltage which can be used by power inverters for AC appliances.