• Categories:Industry News
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• Time of issue:2020-08-12
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(Summary description)The fact is that there are inverters that do not require a rectifier unit, so-called AC-AC inverters. However, most of the AC-DC-AC inverters in the market are those containing rectifier units. This is completely a pattern formed by technology and market competition to a certain extent. AC-DC-AC inverters are cheaper to produce, and more convenient to use. Reliable and mature, so everyone uses it. In fact, this is also in line with some laws of human scientific research.

For example, our voices are now digitized and turned into simple 0-1 codes, then transmitted to a remote place, and then turned into real voices. Because simple things are easy to quantify and process, we will linearize complex curves, and then use linearized things to approximate complex actual links.

The AC-DC-AC inverter first converts the AC power into DC, and then inverts it into AC by means of IGBT chopping. It is easier to process the input DC power when chopping, because it is linear, from calculus From a logical point of view, as long as it is divided into many small enough squares, the cumulative effect is the same as a sine wave, and IGBT devices can only be turned on and off by themselves, so processing the signal of the square is more suitable.