Development of the high power factor high efficiency soft-switching power supply for telecommunication application

This paper designs a type of intelligent switching power supply controller for LED street lamp. The configuration and principle of the controller is detailedly analyzed in this paper. Microprocessor PIC12F675 is employed in the design. With the controller, According to defferent illumination requirements, the controller achieves constant voltage and different constant LED current is automatically regulated to achieve energy saving without LED light intensity decrease notably. The controller is easy to be realized in circuit with high efficiency and high power factor.

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A Novel High Power Factor Soft-Switching Converter

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.433-440.5549 ◽

2012 ◽

Vol 433-440 ◽

pp. 5549-5555

Author(s):

Yun Tao Yue ◽

Yan Lin

Keyword(s):

Power Factor ◽

High Power ◽

Power Supply ◽

High Efficiency ◽

Soft Switching ◽

Switching Converter ◽

Turn On ◽

High Power Factor ◽

Power Factor Corrector ◽

Zero Voltage

A novel scheme of low power communication power supply with high power factor and soft-switching is presented, a power factor corrector and dc/dc converter of passive lossless soft-switching is based on a ML4803 IC control. DC/DC converter introduces a novel two-transistor forward soft-switching technique, which realizes zero-voltage turn-on and turn-off, with no additional switches. a communication power supply module is developed in this paper. It has the characteristics of rapid dynamic response, high power factor, high efficiency and small bulk ect.

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The Design and Simulation of APFC Circuit in High Power Factor Switching Power Supply

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.354-355.1316 ◽

2011 ◽

Vol 354-355 ◽

pp. 1316-1320

Author(s):

Zheng Zheng ◽

Di Lei Chen ◽

Zhen Hua Zhang

Keyword(s):

Low Power ◽

Design Process ◽

Power Factor ◽

High Power ◽

Power Supply ◽

Switching Power Supply ◽

Current Harmonic ◽

Switching Power ◽

Harmonic Content ◽

High Power Factor

For the existence of a large input current harmonic content and the problem of low power factor, we propose an idea using APFC technical to design high power factor switching power supply to deal with it, meanwhile, the design process of APFC circuit parameters of the various components is given. Finally, the design proved to be correct and feasible by the simulation with Saber.

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PCB Board Design of Switching Power Supply with High Power Factor in Communication Equipment

Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering ◽

10.2991/ic3me-15.2015.225 ◽

2015 ◽

Author(s):

Xi Feng ◽

Yuxuan Sun

Keyword(s):

Power Factor ◽

High Power ◽

Power Supply ◽

Switching Power Supply ◽

Switching Power ◽

High Power Factor ◽

Communication Equipment

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Research on Soft Switching Power Supply with High Power Factor Based on Boost Converter

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.29-32.2422 ◽

2010 ◽

Vol 29-32 ◽

pp. 2422-2427

Author(s):

Qian Hua Xiao ◽

Hai Jing Liu

Keyword(s):

Power Factor ◽

High Power ◽

Power Supply ◽

High Performance ◽

Power Factor Correction ◽

Basic Structure ◽

Soft Switching ◽

Switching Power Supply ◽

Soft Switch ◽

Switching Power

With the development of power electronics，the technology of Switching Mode Power Supply(SMPS) is gradually perfected. However，there is no end to the demand for a high power and high performance power supply. Nowadays, Power Factor Correction (PFC) technique is widely researched. This paper mainly analyzes the fundamental configuration of the switching power supply. And we study the basic structure and the operating principles of ZVT-boost soft-switching PFC circuit and the implementing principle of soft switch. For the power requirements, the two-stage PFC circuit is used. The forward stage is a single-phase Boost Power Factor Correction circuit and the backward stage main circuit is a full-bridge converter with the phase-shifting control soft-switching technique. Finally the simulating analysis is performed to the designed system.

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