High-frequency isolated type boost three-level inverter
A three-level inverter and high-frequency isolation technology, which is applied in the direction of electrical components, AC power input conversion to DC power output, output power conversion devices, etc., can solve the problem of large input current ripple and low power factor on the input side , small output capacity, etc., to ensure the quality of the output waveform, reduce the number of power conversion stages, and solve the problem of whereabouts
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[0024] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.
[0025] Such as figure 1As shown, according to the preferred embodiment of the present invention, the high-frequency isolated step-up three-level inverter consists of an input DC power supply unit 1, an input filter 2, a high-frequency inverter 3, and a high-frequency inverter connected in sequence. A transformer 4, a cycloconverter 5, an output voltage dividing capacitor 6, an output AC load 7, and a high-frequency electrical isolation flyback converter 8 are formed. The input DC power supply unit 1 is connected to one end of the input filter 2, and the input filter 2 The other end is connected with one end of the high-frequency inverter 3, the other end of the high-frequency inverter 3 is connected with the primary winding of the high-frequency transformer 4, and the secondary winding of the high-...
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