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发明公开
CN109842310A 一种逆变器 审中-实审

一种逆变器
摘要：
本发明涉及电力电子技术领域，具体涉及一种逆变器，包括：第一DC-DC变换模块，具有串联的第一开关管以及第二开关管、至少一组升压电路以及谐振电感；其中升压电路具有依次串联的第一二极管、第二二极管以及第一电容，第一二极管与第二二极管之间连接有第二电容，第二电容的另一端接入第一开关管与第二开关管之间，第一二极管的另一端与第一开关管的第一端连接，第一电容的另一端与第二开关管的第二端连接；谐振电感的一端接入第一开关管与第二开关管之间，另一端与各升压电路中的第二电容连接；至少两个逆变模块，分别与各升压电路的第一电容和/或第二电容并联。经过变换模块使输入电压等级抬升，结合多路逆变器输出，使逆变器输出不同等级电压。
摘要（英）：

The invention relates to an inverter, and belongs to the technical field of power electronics. The inverter comprises a first DC-DC conversion module and at least two inversion modules; the first DC-DC conversion module includes serial-connected first and second switch tubes, at least one boosting circuit and a resonant inductor; the boosting circuit includes a first diode, a second diode and a first capacitor, a second capacitor is connected between the first and second diodes, one end of the second capacitor is connected between the first and second switch tubes, one end of the first diode is connected with the first end of the first switch tube, and one end of the first capacitor is connected to the second end of the second switch tube; one end of the resonant inductor is connected between the first and second switch tubes, and the other end of the resonant inductor is connected to the second capacitor in each boosting circuit; and the two inversion modules are connected with the first capacitor and/or second capacitor in each boosting circuit in parallel. The conversion module improves the level of the input voltage, paths of inverter output are combined, and the inverter outputs different levels of voltages.

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