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Difference Between Pure Sine Wave and Modified Sine Wave Inverter

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An inverter is necessary to power the commonly used devices in your home, cabin, or RV, from laptops to microwaves. When shopping for inverters, you will find that there are two main types of inverters: modified sine wave inverters and pure sine wave inverters. Let us distinguish the difference between pure sine wave and modified sine wave inverters.

Both pure sine wave and modified sine wave inverters convert from DC power to AC power before they can power equipment.

Difference

Different Output Waveform

The output voltage waveform of the pure sine wave inverter is good, the distortion is very low, and its output waveform is basically consistent with the AC waveform of the power grid. Pure sine wave inverters produce cleaner, smoother, quieter, and more reliable power with no disruption to equipment.

The output waveform of a modified sine wave inverter resembles a stepped square pattern in which the polarity is flipped back and forth. Such fluctuations can negatively affect finer, more sensitive devices.

Different Cost and Efficiency

Cost: The circuit of the pure inverter is more complex than that of a modified sine wave inverter, requiring high control chip and maintenance technology, so the cost is higher.

Efficiency: Modified sine wave modifies the output waveform as current flows, so the modified sine wave inverter loses power, which reduces the power sent to the appliance and affects the performance of the device.

Different Compatibility

The pure sine wave inverter has a stable output waveform and is suitable for various loads, such as sensitive electronic products: notebook computers, audio, household equipment, etc. The modified sine wave inverter has many restrictions on the load and is suitable for resistive loads, such as incandescent lamps and other loads.

HzInverter can provide a series of pure sine wave and modified sine wave inverters, and you can choose from a variety of styles.

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