DC-DC module power supply

Abstract

The invention discloses a DC-DC module power supply which comprises an enclosure and a circuit mainboard arranged in the enclosure, the circuit mainboard comprises a primary-side circuit and a secondary-side circuit, the primary-side circuit comprises a power conversion circuit, a primary-side driving circuit and a primary-side control circuit, the power conversion circuit adopts a high-frequency power switch, an input DC voltage of 185-340V DC is converted into a 9V low-voltage DC output voltage by a transformer, the secondary-side circuit comprises a synchronous rectification circuit, a secondary-side driving circuit, a secondary-side control circuit and an isolation switch, the synchronous rectification circuit adopts a synchronous rectification switch for synchronous rectification, a low-voltage power pulse is converted into a smooth 9V DC through an output filter, and the smooth 9V DC is output through an anode confluence structure and a cathode confluence structure. The mainboard is reasonable in arrangement and compact in structure, has the advantages of small volume, high reliability, good heat dissipation performance, high anti-interference capability, high isolation and the like, and is mainly applicable for the fields such communication, aeronautics and astronautics and military.

Description

technical field [0001] The invention relates to a module power supply, in particular to a high-power military DC-DC module power supply. Background technique [0002] Modern warfare is inseparable from military communications. In military communication equipment, especially field communication equipment, the power supply is its "heart" and "food". The performance and quality of communication power supply directly affect the effectiveness of communication equipment and the command and control of troops and information transmission. Therefore, the power supply is a key supporting product and an extremely important technical basis for communication equipment. [0003] DC-DC module power supplies are widely used in military, radar, navigation, aviation, aerospace, navigation, ships and military electronic and electrical equipment, medical treatment, vehicle equipment, railways, electric power and other fields. When in use, according to the requirements of the system for worki...

AI Technical Summary

Problems solved by technology

[0004] When a high-power power supply is required, the usual processing method is to connect multiple module power supplies in series. The traditional module power supply is connected to the outside after connecting multiple module power supply units in series. There are many connections, which makes the module power supply The internal chaos will reduce the stability of the structure, the conductivity will be affected, and the superposition of power will occur. The high density will easily cause the heat discharge inside the module power supply housing to be blocked. Over time, the service life will be greatly reduced.

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