Electronic communication power supply system

A power supply system and electronic technology, which is applied in the direction of electric power measurement by current/voltage, electric vehicles, and electrical devices, etc., can solve the problems of large size of the power supply system, affecting the use and promotion, complex structure, etc., and achieves low cost and small size. , the effect of meeting the system requirements

Inactive Publication Date: 2017-03-29
HUANGHE S & T COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The structure of many existing power supply systems with active PFC is too complex, resulting in large power supply systems and high costs, which affect the use and promotion

Method used

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] see Figure 1~2 , in an embodiment of the present invention, an electronic communication power supply system includes a controller, a comparator, a wireless module, a voltage sampling module, a PFC controller module, a boost circuit and a rectifier circuit, and the controller is respectively connected to an overcurrent protection drive Module, wireless module, comparator, boost circuit and voltage and current sampling module. The comparator is also conn...

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Abstract

The invention discloses an electronic communication power supply system. The system comprises a controller, a comparator, a wireless module, a voltage sampling module, a PFC controller module, a booster circuit, and a rectifier circuit. The controller is connected with an over-current protection driver module, the wireless module, the comparator, the booster circuit, and a voltage and current sampling module. The comparator is further connected with the voltage and current sampling module. The voltage and current sampling module is further connected with an isolation transformer, the rectifier circuit, and an over-current protection module. The over-current protection module is further connected with the other end of the over-current protection driver module. The system of the invention adopts a phase difference measurement method. According to the method, voltage and current signals detected by the secondary side of the isolation transformer are shaped by the comparator, the phase difference between voltage and current is calculated, and the phase difference is sent to the controller for cosine calculation to get the power factor of the system. Through phase measurement using an equal precision method, very high precision can be achieved. The system has the advantages of simple structure, small size and low cost.

Description

technical field [0001] The invention relates to a power supply system, in particular to an electronic communication power supply system. Background technique [0002] With the development of electronic power technology, the power supply required for electronic components is becoming more and more demanding. Generally, the power supply of components is obtained directly from the mains, but because the input impedance of the grid is capacitive, and a large number of rectification circuits cause a large phase difference between the input voltage and the input current on the grid side, the input current is pulse-like, harmonic The wave component is very high, seriously disturbing the power system. It is understood that the power factor of the grid side of the general power grid at this stage is about 0.65. Therefore, it is urgent to use energy efficiently and improve the power factor of the power supply. [0003] The communication power supply system is the heart of the commun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/00G01R21/06
CPCG01R21/006G01R21/06
Inventor 杨亚丽尹飞凰焦军宁
Owner HUANGHE S & T COLLEGE
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