DC-DC module power supply

A module power supply and circuit technology, which is applied in the direction of conversion equipment with intermediate conversion to AC, can solve the problems of cluttered module power supply, reduced structural stability, and electrical conductivity.

Active Publication Date: 2014-11-05
SICHUAN SHENGHUA POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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 p

Method used

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Embodiment Construction

[0079] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0080] Such as figure 1Shown, a kind of DC-DC module power supply, it comprises casing and be positioned at the circuit motherboard in casing, described circuit motherboard includes primary side circuit and secondary side circuit; Described primary side circuit includes power conversion circuit, primary side circuit Side drive circuit and primary side control circuit; power conversion circuit adopts high-frequency power switch A (PSW1~PSW4), through transformer T1, converts 185-340VDC input DC voltage into low-voltage power pulse, and primary side drive circuit is high-frequency power Switch A provides a driving pulse with an amplitude of 10-12V. The primary control circuit is composed of a PWM (pulse width modulation) chip and other auxili...

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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...

Claims

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Application Information

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IPC IPC(8): H02M3/28
Inventor 韦宗超
Owner SICHUAN SHENGHUA POWER TECH CO LTD
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