A switching power supply of 99% power factor by the dither rectifier

2002 ◽  
Author(s):  
I. Takahashi ◽  
R.Y. Igarashi
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Switching Power Supply ◽  
Switching Power

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

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.

Design of High-Power LED Embeded Controller Based on FSCQ0765RT

2012 ◽  
Vol 512-515 ◽  
pp. 2701-2704
Author(s):  
Yi Min Wang ◽  
Jian Wen Li
Keyword(s):  
Light Intensity ◽  
Power Factor ◽  
High Power ◽  
Power Supply ◽  
High Efficiency ◽  
Switching Power Supply ◽  
Constant Voltage ◽  
Switching Power ◽  
High Power Factor ◽  
Street Lamp

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.

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

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.

The Design of 5V/100W High Frequency Switching Power Supply

2013 ◽  
Vol 834-836 ◽  
pp. 1221-1224
Author(s):  
Hong Zhuan Cai ◽  
Li Bai
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
High Efficiency ◽  
Design Method ◽  
Switching Power Supply ◽  
Widespread Application ◽  
Forward Converter ◽  
Switching Power ◽  
Dc Power ◽  
Important Field

Switching power supply is an important field of application of power electronic technology, the high frequency switching DC power supply with high efficiency, small size, light weight and other advantages obtain the widespread application. The application of synchronous rectifier technology, photoelectric coupling isolation technology and the active clamp forward converter design high frequency switching power supply with 16~40V DC input and 5V/100W DC output . its operational principle is analyzed, and using LM5026 control chip describes design method of switching power supply.

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