There are many types of inverters on the market. How should we choose an inverter?

An inverter is a converter that converts direct current (DC) to alternating current (AC). Composed of inverter bridge, control logic and filter circuit, it is widely used in air conditioners, home theaters, power tools, computers, TVs, washing machines, range hoods, refrigerators, video recorders, fans, lighting, etc.

As the name implies, the inverter first converts the alternating current into DC to charge the battery, and then converts the DC into alternating current to power the electrical equipment. There are three types of inverters: pure sine wave inverter, modified wave inverter and square wave inverter. Among them, the pure sine wave inverter has the highest efficiency, which can provide high-quality AC power to the equipment.

Corrected-wave inverters and square-wave inverters are generally less expensive, but far less efficient than pure sine-wave inverters. Also, in these inverters, some appliances do not work properly. Pure sine wave inverter has stronger load effect and load capacity, and can provide stable and efficient pure sine wave output for electrical equipment, but the technical requirements and cost are relatively high.

Let's take a look at the differences between pure sine wave inverters, modified wave inverters and square wave inverters:

1. The output waveforms of various inverters are different.

The difference between pure sine wave inverter, modified wave inverter and square wave inverter is the difference in output waveform. Pure sine wave inverters generally use PWM inverters, and some even add multi-step inverters. The structure is complex but the output waveform is good, which is suitable for inductive loads and capacitive loads. The improved wave inverter generally adopts square wave inverter, and a few are stepping inverters. Simple structure, but poor output waveform, not suitable for inductive load and capacitive load.

2. There is a gap in inverter efficiency.

Compared with modified wave inverter and square wave inverter, pure sine wave inverter has higher efficiency, stable sine wave output, high frequency technology, suitable for various loads.

3. Inverter noise and loss

Pure sine wave inverters are suitable for inductive loads, capacitive loads and resistive loads, while modified wave inverters and square wave inverters are only suitable for resistive loads. If the modified wave inverter and the square wave inverter are used in the electrical appliance, it will generate a lot of noise and cause great loss to the electrical appliance.

The pure sine wave inverter has good output waveform and low distortion, and its output waveform is basically consistent with the AC waveform of the commercial power grid. In fact, a good pure sine wave inverter provides a higher quality AC power than the grid. The pure sine wave inverter has little interference to radio, communication equipment and precision equipment, low noise, strong load adaptability, can meet all AC load applications, and has high overall efficiency.

The pure sine wave inverter outputs the same or better sine wave alternating current as the grid we use every day, and there is no electromagnetic pollution in the grid. Simply put, it has a wide range of applications, strong load capacity and excellent stability. It can provide the same AC power as ordinary households, and can drive almost any kind of electrical appliances when the power is sufficient.

It can be seen from the comparison of various aspects that the pure sine wave inverter is superior to the modified wave inverter and the square wave inverter in all aspects. The pure sine wave inverter manufactured by Rekesun Solar adopts all-digital intelligent control technology, which has the characteristics of fast dynamic response, strong anti-load capability, small input surge current, safe and stable operation, etc. The product is simple in appearance, light in size, simple in operation and convenient in installation. Intelligent LCD display, product operating parameters and status are clear at a glance. The product has high stability, high reliability and strong practicability, and is an ideal cost-effective power supply.