Inverter converts DC power into AC power, while transformer is a kind of electrical equipment that applies electromagnetic induction principle to realize electric energy conversion. It can convert a kind of voltage and current of AC power into another kind of voltage and current of ac power of the same frequency. The transformer is a very important part of the inverter. The inverter first converts the direct current into pulsed alternating current through the mos, and then boosts the voltage through the transformer and then passes through the H bridge to complete the entire inverter process.
The transformer used in the inverter is a power transformer.
According to the shape, it can be divided into toroidal transformer, strip transformer and square transformer.
According to the frequency, it can be divided into power frequency transformer and magnetic core transformer. Power frequency inverters use ordinary power frequency transformers and magnetic core transformers for high frequency inverters.
According to the number of phases, it is divided into single-phase transformer and three-phase transformer. Single-phase transformer is a static device, it works according to the principle of Faraday\'s law of mutual inductance. Single-phase transformers are suitable for single-phase inverters. Three-phase power supplies are mainly used for industrial power generation, transmission and distribution. A group of three single-phase transformers connected together can act as a three-phase transformer, which is cheaper than buying a three-phase transformer alone. Three-phase transformers are suitable for three-phase inverters.
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