Compound Inverter

Abstract

The invention discloses a combined type inverter. The combined type inverter comprises input voltage, and a capacitor C1 connected between positive and negative electrodes of the input voltage in parallel, the positive electrode of the input voltage is connected with drain electrodes of an MOS tube Q1, an MOS tube Q3 and an MOS tube Q5 in parallel, a source electrode of the MOS tube Q1 is connected with a drain electrode of an MOS tube Q2, a source electrode of the MOS tube Q3 is connected with a drain electrode of an MOS tube Q4, a source electrode of the MOS tube Q5 is connected with a drain electrode of an MOS tube Q6, source electrodes of the MOS tube Q2, the MOS tube Q4 and the MOS tube Q6 are connected with the negative electrode of the input voltage; and a position between a source electrode of the MOS tube Q1 and the drain electrode of the MOS tube Q2 is connected between the source electrode of the MOS tube Q5 and the drain electrode of the MOS tube Q6 through an inductor L2, a capacitor C2 and an inductor L3 in sequence, a position between the source electrode of the MOS tube Q3 and the drain electrode of the MOS tube Q4 is connected between the source electrode of the MOS tube Q5 and the drain electrode of the MOS tube Q6 through an inductor L1, the capacitor C2 and the inductor L3 in sequence, and the capacitor C2 is connected with a load R1 in parallel.

Description

technical field [0001] The present invention relates to inverters, in particular to compound inverters. Background technique [0002] Inverter, English inverter, is a power conversion device that can convert 12V or 24V DC into 230V, 50Hz AC or other types of AC. The alternating current it outputs can be used in various equipments. It can meet the needs of users in mobile power supply places or areas without electricity to the greatest extent. The three-phase inverter is a high-power inverter power supply for electric power, mainly used in the military; communication; factory and enterprise uninterruptible power supply system, the ordinary three-phase inverter has a large current through the MOS tube, and the heat is high, and the MOS The power consumption of the tube is high, so the life of the MOS tube will be greatly shortened; and the waveform output by the ordinary three-phase inverter contains quite a lot of high-order harmonics, which will cause a great negative impac...

AI Technical Summary

Problems solved by technology

The three-phase inverter is a high-power inverter power supply for electric power, mainly used in the military; communication; factory and enterprise uninterruptible power supply system, the ordinary three-phase inverter has a large current passing through the MOS tube, and the heat generation is relatively high. The power consumption of the tube is high, so the life of the MOS tube will be greatly shortened; and the waveform output by the ordinary three-phase inverter contains quite a lot of high-order harmonics, which will cause a great negative impact on the load, and also It will bring clutter pollution to the mains on the grid, and these inverters must be improved to improve their output waveforms

Images