Super-high voltage input switch power source module

A technology of input switch and power module, which is applied in the direction of converting DC power input to DC power output, electrical components, and adjusting electrical variables, etc. It can solve problems such as equipment failure, field effect tube damage, and burning.

Inactive Publication Date: 2014-05-21
SUZHOU IND PRAK NEW HONGBO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause the field effect tube to be damaged due to high AC voltage, which is close to or even exceeds the withstand voltage of the field effect tube, which will cause the power supply to fail or even burn out, and eventually cause the entire device to fail.

Method used

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  • Super-high voltage input switch power source module
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Embodiment Construction

[0011] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present invention.

[0012] like figure 1 The above is the AC-DC (AC-DC) ultra-high voltage input switching power supply module diagram of the present invention. The switching power supply module includes an input rectification filter module 1, a control chip 2, a switch tube 3, a high-frequency isolation transformer 4, and a feedback module 5. And output rectification filter module 6. The input rectifier and filter module 1 is used to convert the input alternating current into high-voltage direct current; the control chip 2 is connected to the output end of the input rectifier filter module 1; the switch tube 3 is conn...

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PUM

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Abstract

The invention relates to a super-high voltage input switch power source module. The super-high voltage input switch power source module comprises an input rectifier filter module used for converting an input alternating current into a high voltage direct current, a control chip connected with an output end of the input rectifier filter module, a switch tube which is connected with an output end of the control chip and comprises a resistor R1, a resistor R2, a voltage stabilizer tube TVS1, a field effect transistor Q1, a field effect transistor Q2 and a voltage stabilizer diode VS1, a high frequency isolation transformer connected with output ends of the input rectifier filter module and of the switch tube, an output rectifier filter module connected with an output end of the high frequency isolation transformer, and a feedback module connected with an output end of the output rectifier filter module and an adjusting end of the control chip. According to the super-high voltage input switch power source module, the switch is designed to make the switch power source module satisfy super-high voltage input requirements.

Description

technical field [0001] The invention relates to a switching power supply module, in particular to an ultra-high voltage input switching power supply module. Background technique [0002] For the current stage of industrial control, green energy, and communication industries, a large number of industrial control intelligent monitoring equipment is used. Due to the special working environment, the power supply stability of the equipment is poor. Especially in remote areas, the actual AC voltage will be higher than the rated value, especially in remote areas. However, the system power supply of monitoring equipment requires stable power to ensure the stability of the entire system. [0003] In order to solve the above problems, most equipment suppliers at this stage use switching power supply as the power supply system of the equipment. The switching power supply has high efficiency, good voltage adjustment performance and high adaptability, but in some occasions the AC power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
Inventor 徐以锋
Owner SUZHOU IND PRAK NEW HONGBO COMM TECH
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