Design and Performance Analysis of Digital Control Laws for Low Power High Frequency Switching Power Supply

Author(s):  
Shubha Rao K. ◽  
Veena S. Chakravarthi
2015 ◽  
Vol 734 ◽  
pp. 921-924
Author(s):  
Mu Dan Zhou

This paper designs a low-power flyback switching power supply using current-mode PWM control chip UC3843. The design of control circuit and high-frequency transformer’s parameters of single-ended flyback converter is given. Simulation model of switching power supply is established by saber software. Simulation result shows that the power supply both have a good line regulation and load regulation with high efficiency, and verifies the correctness and feasibility of the design scheme.


2013 ◽  
Vol 834-836 ◽  
pp. 1221-1224
Author(s):  
Hong Zhuan Cai ◽  
Li Bai

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.


2011 ◽  
Vol 354-355 ◽  
pp. 1316-1320
Author(s):  
Zheng Zheng ◽  
Di Lei Chen ◽  
Zhen Hua Zhang

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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