Current source input converter based on bidirectional voltage stabilizing diode array

By using a current source input converter based on a bidirectional Zener diode array, combined with a full-bridge rectifier circuit and a hot backup architecture, the problems of low efficiency and poor reliability in existing technologies are solved. This achieves the function of converting a current source into a stable voltage with high efficiency and reliability, and is suitable for power supply scenarios such as deep-sea observation networks, submarine communication base stations, and long-distance DC microgrids.

CN122292912APending Publication Date: 2026-06-26XIHUA UNIV
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Patent Information

Application Number
CN202610728984.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-26
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing current source input converters are inefficient, lack redundancy protection, and have high heat dissipation pressure. Especially in application scenarios such as deep-sea observation networks, submarine communication base stations, and long-distance DC microgrids, the lack of main backup circuits in DC/DC converters leads to low system reliability, and the Zener diode matrix has high power consumption and is difficult to dissipate.

Method used

A current source input converter based on a bidirectional Zener diode array is adopted, combined with a full-bridge rectifier circuit, a first DC/DC converter circuit, a second DC/DC converter circuit, a voltage regulation circuit, and a bypass current circuit to construct a hot backup architecture with parallel input and parallel output. The voltage regulation circuit detects the DC bus voltage and controls the bypass current circuit to bypass excess current, thereby reducing the power consumption of the Zener diode array.

Benefits of technology

It improves system adaptability and reliability, avoids system downtime caused by single point of failure, reduces the heat generation of the Zener diode array, and significantly improves the overall efficiency of the converter.

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Abstract

The invention discloses a current source input converter based on a bidirectional voltage stabilizing diode array. Relates to the field of power supplies, and solves the problems of low efficiency, lack of redundancy protection and large heat dissipation pressure of a current source input converter, a bidirectional voltage stabilizing diode array is matched with a full-bridge rectification circuit to enable the converter to adapt to any polarity of an input current, and no matter how the polarity of a constant current source is, the constant current source can be clamped and rectified into a one-way direct current bus voltage; the input ends of the first DC / DC conversion circuit and the second DC / DC conversion circuit are connected in parallel, and the output ends of the first DC / DC conversion circuit and the second DC / DC conversion circuit are connected in parallel to form an input-parallel output-parallel hot backup architecture, and when one DC / DC conversion circuit breaks down and stops working, the other DC / DC conversion circuit continues to supply power to a load; the voltage regulation circuit detects the voltage of a direct current bus, controls the conduction of the bypass current circuit and bypasses redundant current to the ground, the bypass circuit shunts the redundant current, the current flowing through the bidirectional voltage-regulator diode array is reduced, and the power consumption of the voltage-regulator tube array is reduced.
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