Converter device

By adopting a combined structure of rectifier, half-bridge inverter, input inductor, transformer and full-bridge inverter in the converter device, combined with the controller's PI control and frequency modulation, the power factor and efficiency in the prior art are solved. The problem of insufficient power conversion has been achieved.

CN119325685APending Publication Date: 2025-01-17PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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Patent Information

Application Number
CN202380045330.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-06-17
Filing Date
2023-05-22
Publication Date
2025-01-17

AI Technical Summary

Technical Problem

Existing converter devices have shortcomings in improving power factor and efficiency, making it difficult to meet more efficient power conversion needs.

Method used

Using a combined structure of rectifier, half-bridge inverter, input inductor, transformer, full-bridge inverter and controller, the intermittent current mode and PI control are realized, and the voltage and Frequency modulation to improve power factor and efficiency.

Benefits of technology

It effectively improves the power factor and efficiency of the converter, can maintain stable output voltage and current when the load changes, and reduce fluctuations in DC bus voltage.

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Abstract

Techniques for increasing power factor and improving efficiency are disclosed herein. A converter device (1) comprises a rectifier (2), a half-bridge inverter (3), an input inductor (Lin), a transformer (Tr1), a full-bridge inverter (4), an inductor (L1) and a controller (5). A primary winding (N1) of the transformer (Tr1) is connected between a first output terminal (34) and a second output terminal (35) of the half-bridge inverter (3). A full bridge inverter (4) is connected to a secondary winding (N2) of the transformer (Tr1). The inductor (L1) is connected between the half-bridge inverter (3) and the primary winding (N1) or between the secondary winding (N2) and the full-bridge inverter (4). And the controller (5) controls the half-bridge inverter (3) and the full-bridge inverter (4).
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Citation Information

Patent Citations

  • power converter

    JP6388745B1