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Switching power supply module with high reliability and low power consumption

A technology of switching power supply and switching unit, which is applied in the direction of electrical components, output power conversion devices, and conversion equipment without intermediate conversion to AC. It can solve problems such as inconvenient debugging, unreasonable design, and low stability. Easy design, convenient debugging, and the effect of reducing the capacitance value

Active Publication Date: 2012-08-08
中国航空工业第一集团公司第六三一研究所
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  • Application Information

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Problems solved by technology

[0003] In order to solve the disadvantages of unreasonable design, high energy consumption, poor reliability, low stability, and inconvenient debugging of the internal auxiliary and protection circuits of the switching power supply module in the prior art, the present invention provides a switching power supply with high reliability and low power consumption module

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  • Switching power supply module with high reliability and low power consumption
  • Switching power supply module with high reliability and low power consumption
  • Switching power supply module with high reliability and low power consumption

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Embodiment Construction

[0020] The high-reliability and low-power switching power supply module of the present invention includes a DC / DC conversion unit 6, an input protection unit 1 disposed at the input end of the DC / DC conversion unit 6, an output protection unit 4 disposed at the output end of the DC / DC conversion unit 6, and The AAP switch unit 3 for turning on and off the output power; the input protection unit 1 includes an undervoltage surge protection circuit 2 , and the output protection unit 4 includes an output overvoltage protection circuit 5 .

[0021] The circuit structure of the AAP switch unit is as follows figure 2 shown. The AAP switch unit enables the switching power supply module to have a power-on control function. Its circuit is realized by controlling the output enable control terminal (GATE IN) of the DC / DC conversion unit. The power-on enable control switch signal is taken from the input based The output terminal of the voltage signal of the ground wire or the voltage sig...

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Abstract

The invention relates to a switching power supply module with high reliability and low power consumption, comprising a DC / DC converting unit, an input protection unit arranged at the input end of the DC-DC converting unit, an output protection unit arranged at the output end of the DC-DC converting unit, and an AAP switching unit. The power-up enable control switch signal of the module is selected from a voltage signal based on an input wire or a voltage signal based on any output wire, and the output end thereof is connected with each output enable control end of the DC-DC converting unit. The invention solves the shortcomings of unreasonable design, high energy consumption, poor reliability, low stability, inconvenient debugging existing in auxiliary and protective circuits inside the switching power supply module in the prior art, and has the advantages of low energy consumption, simple design, reliability, stability and the like.

Description

technical field [0001] The invention relates to a switching power supply. Background technique [0002] The switching power supply module can provide power signal output to various electronic circuit boards. In order to ensure the high reliability and high availability of the power signal, its necessary internal auxiliary and protection circuits are essential. However, the auxiliary and protection circuits in most switching power supply modules have shortcomings such as unreasonable design, poor reliability, and low stability. Especially when the switching power supply module is not working, the auxiliary and protection circuits are always powered on, resulting in high energy consumption of the circuit; in addition, the auxiliary and protection circuits are always powered on, which makes the debugging process inconvenient. Contents of the invention [0003] In order to solve the disadvantages of unreasonable design, high energy consumption, poor reliability, low stability...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/36H02M1/32H02M3/10
Inventor 田龙白永刚郭晨霍跃庆杨宁冯菲
Owner 中国航空工业第一集团公司第六三一研究所
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