Sine wave inverter parameters

What is a pure sine wave inverter?

Pure sine wave inverters produce a smooth, periodic wave that closely resembles the AC power supplied by the grid. This type of inverter is ideal for sensitive electronics and appliances, including refrigerators, air conditioners, and computers. These devices are designed to operate with a pure sine wave, ensuring optimal performance and longevity.

How to control a sine wave inverter?

Fig. 2: Sine Wave Inverter Control technique Block Diagram The triggering pulses are obtained at the point of intersection of the carrier and a reference signal (sine wave). The switching devices are ON until the magnitude of sine wave is greater than that of triangular wave. i.e. V r > V c else it is turned OFF.

What type of inverter is used to produce a sine wave?

Combination of pulses of different length and voltage results in a multi-stepped modified square wave, which closely matches the sine wave shape. The low frequency inverters typically operate at ~60 Hz frequency. To produce a sine wave output, high-frequency inverters are used.

How do high frequency inverters produce a sine wave output?

To produce a sine wave output, high-frequency inverters are used. These inverters use the pulse-width modification method: switching currents at high frequency, and for variable periods of time. For example, very narrow (short) pulses simulate a low voltage situation, and wide (long pulses) simulate high voltage.