High frequency isolation type three-level inverter based on Boost converter
A technology of three-level inverter and three-level inverter, which is applied in the direction of converting AC power input into AC power output, converting AC power input into DC power output, electrical components, etc., and can solve the problem of large input current ripple, Problems such as small output capacity and low reliability achieve the effect of fewer power conversion stages, reduced volume, and improved efficiency
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[0028] A high-frequency isolated three-level inverter based on a boost converter of the present invention, the input DC power supply U i The reference positive pole and the input filter inductance L 0 One end is connected, input filter inductor L 0 The other end is connected with the input filter capacitor C 0 The anode is connected to one end of the energy storage inductor L, the other end of the energy storage inductor L is connected to the drain of the first power switch S1 and the drain of the third power switch S3, the first diode D2 and the third two The pole tube D3 is respectively connected in anti-parallel to both ends of the first power switch tube S1 and the third power switch tube S3, that is, the cathode D1 of the first diode is connected to the drain of the first power switch tube S1, and the first diode D1 The anode of the third diode D3 is connected to the source of the first power switch S1, the cathode of the third diode D3 is connected to the drain of the ...
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