A Compact Switching Power Supply Utilizing SiC-JFET for an Induction Synchrotron

2013 ◽  
Vol 740-742 ◽  
pp. 1077-1080 ◽  
Author(s):  
Katsuya Okamura ◽  
Toshiya Mizushima ◽  
Koichi Takaki ◽  
Ken Takayama
Keyword(s):  
High Power ◽  
Power Supply ◽  
Switching Power Supply ◽  
Circuit Topology ◽  
Switching Power ◽  
Combination Test

Utilizing a high power discrete SiC-JFET developed by KEK, a switching power supply (SPS) that had a circuit topology of H-bridge was designed and constructed to drive the induction acceleration system for the KEK digital accelerator. The SPS was operated with a 38 Ω dummy resistance load and bipolar outputs of 800V and 21A were successfully demonstrated at 1 MHz. Also, the combination test with an actual accelerator cell is being conducted.

Improvement of Boost Circuit Based on Fly-Back Switching Power Supply

2012 ◽  
Vol 588-589 ◽  
pp. 496-500
Author(s):  
Ying Chen ◽  
Liang Hong Li ◽  
Zhi Yong Li
Keyword(s):  
Power Supply ◽  
Operating Principle ◽  
Switching Power Supply ◽  
Circuit Topology ◽  
Switching Power

A kind of self-couple transformer voltage-elevating fly-back circuit topology is presented in this paper, and analyses the operating principle in detail. A voltage-elevating fly-back type DC-DC convertor based on theory is designed. Finally, the feasibility of self-couple transformer voltage-elevating fly-back circuit is testified by experiment.

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.

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