一种DC / AC逆变电源
By setting an LLC resonant network at the output of the step-up transformer, the requirement for resonant capacitor is reduced, solving the problem of the difficulty in obtaining resonant capacitors in the prior art, and achieving higher inverter efficiency and wider voltage adaptability.
CN115589158BActive Publication Date: 2026-07-17XIONGAN POWER SOURCE TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIONGAN POWER SOURCE TECH CO LTD
- Filing Date
- 2022-10-31
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing DC/AC inverters, the resonant capacitor of LLC resonant devices is difficult to obtain, especially under low voltage and high current conditions, which makes the devices difficult to obtain and costly.
Method used
By placing the LLC resonant network circuit at the output of the step-up transformer, the voltage is increased by the step-up transformer, reducing the demand for resonant capacitors. This makes it easier to obtain high-voltage, small-capacity film capacitors and reduces the use of parallel capacitors.
Benefits of technology
This reduces the resonant capacitor capacity, simplifies device acquisition, avoids increased cost and size, and improves inverter efficiency and adaptability to a wide input voltage range.
✦ Generated by Eureka AI based on patent content.
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Figure CN115589158B_ABST
Abstract
本发明实施例公开一种DC / AC逆变电源，涉及电力电子技术领域，第一变换单元，所述第一变换单元包括：第一逆变电路、升压变压器、LLC谐振网络电路及整流电路，所述第一逆变电路的输入端接入直流电源，所述第一逆变电路的输出端电连接于所述升压变压器的输入端，所述LLC谐振网络电路的输入端电连接于所述升压变压器的输出端，所述LLC谐振网络电路的输出端电连接于所述整流电路的输入端；第二变换单元，所述第二变换单元的输入端电连接于所述整流电路的输出端，所述第二变换单元用于输出交流电压。本发明便于实现谐振电容容量的降低，从而更容易获得该器件。本发明适用于各种供电网络中。
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