Design of the Positive and Negative Buses Voltage-Sharing Converter

2013 ◽  
Vol 427-429 ◽  
pp. 1250-1253
Author(s):  
Yu Li Ma ◽  
Yu Shan Ma
Keyword(s):  
Power Supply ◽  
Design Method ◽  
Switching Power Supply ◽  
Voltage Range ◽  
Switching Power ◽  
Auxiliary Power ◽  
Design Plan ◽  
Bus Voltage ◽  
Power Capability

The converter can supply auxiliary power and ensure bus balances on the hardware. The converter used design method of single-ended flyback, clamping-diodes balanced the positive and negative buses. The design plan and parameter are described. The practice shows that the circuit can provide auxiliary power capability of 60W and the uneven degree of the positive and negative buses is 1.8V. The circuit can be used in any switching power supply, whose bus voltage range is ±(260-450)V.

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.

The Design of a New-Type LED Switching Power Supply Circuit

2014 ◽  
Vol 986-987 ◽  
pp. 1877-1880
Author(s):  
Elin Jing ◽  
Zheng Feng Sun ◽  
Hong Yuan Wen
Keyword(s):  
Power Supply ◽  
Current Mode ◽  
Input Voltage ◽  
Constant Current ◽  
Switching Power Supply ◽  
Voltage Range ◽  
Supply Circuit ◽  
Switching Power ◽  
Power Supply Circuit ◽  
New Type

A new-type LED switching power supply circuit using flyback converter is designed based on current-mode PFC controller chip L6562. The circuit has some characteristics such as simple structure, wide input voltage range, output stability and reliable operation. The experimental results show that the system efficiency is up to 89.46% when the input voltage changes from 85V to 265V(AC), meanwhile the system works stably with constant current and constant voltage output.

A Novel Single-Ended Flyback High Frequency Regulated LED Driver Power Supply

2012 ◽  
Vol 542-543 ◽  
pp. 997-1000 ◽  
Author(s):  
Jin Jian Zhang ◽  
Xian Song Fu ◽  
Ping Juan Niu ◽  
Yi Li Liu
Keyword(s):  
Power Supply ◽  
Current Mode ◽  
Input Voltage ◽  
The Novel ◽  
Switching Power Supply ◽  
Led Driver ◽  
Voltage Range ◽  
Switching Power ◽  
Battery Chargers ◽  
Switched Mode Power Supply

A steady output single-ended flyback switching power supply using L6561 current mode PWM controller designed in this paper. The designed circuit consists of single-ended flyback topology and based on the peak current PWM technology. The circuit has input voltage range from 85V AC to 265V AC and about output drive capability of 12V/2A. Based on the specific chip L6561, the novel single-ended flyback AC/DC converting circuit is adapted for mobile or office equipment, off-line battery chargers. The low-power Switched-Mode Power Supply (SMPS) are the most noticeable examples of application that this configuration can fit. The testing results show that the design of this method can reduce the switching power supply ripple, and ensure stable voltage output.

Series Switching Power Supply with Wide Input Voltage Based on Dual-Loop Control

2013 ◽  
Vol 739 ◽  
pp. 454-457
Author(s):  
Hong Mei Xu ◽  
Yong Gao Jin
Keyword(s):  
Power Supply ◽  
Low Cost ◽  
Short Circuit ◽  
Input Voltage ◽  
Switching Power Supply ◽  
Loop Control ◽  
Voltage Range ◽  
Switching Power ◽  
Overcurrent Protection ◽  
Capacitive Load

The circuit of series switching power supply based on voltage and current dual-loop control is proposed, which can work in the voltage range from 12V to 90V. It is less influence to working state when capacitive load is accessed. The circuit have the function of quickly response, short circuit protection and overcurrent protection. The power supply have advantages of low-cost and working stability, which can be used to different various industry alarms and blasting signal lights in the wide voltage range.

A Flyback Switching Power Supply Based on L6561 for LED

2014 ◽  
Vol 960-961 ◽  
pp. 1264-1267
Author(s):  
Zhu Lei Shao
Keyword(s):  
Power Supply ◽  
Power Efficiency ◽  
Input Voltage ◽  
Maximum Output ◽  
Switching Power Supply ◽  
Output Current ◽  
Voltage Range ◽  
Switching Power ◽  
Switch Power Supply ◽  
Office Equipment

A flyback switching power supply was designed, which can drive LED stability. The switching power supply is the single-ended flyback structure, and based on PWM driver chip L6561. The input voltage range of the switching power supply is 85V to 265V. The output voltage is 15V and the maximum output current is 2A. The switch power supply is suitable for mobile phone, office equipment and LED. According to experiment, the switching power supply can steadily drive 5 LED, the ripple factor of output is 1.33%, the power efficiency is 85.7%.

scholarly journals Switching power supply EMC optimisation design method

2020 ◽  
Vol 56 (16) ◽  
pp. 813-816 ◽  
Author(s):  
Wanjun Yin ◽  
ZhengFeng Ming ◽  
Tao Wen
Keyword(s):  
Power Supply ◽  
Design Method ◽  
Switching Power Supply ◽  
Switching Power

A Practical Design Method of Flyback Switching Power Supply Transformer

2013 ◽  
Vol 367 ◽  
pp. 234-239
Author(s):  
Dang Pei Zhou ◽  
Ye Xian Chen
Keyword(s):  
Power Supply ◽  
Design Method ◽  
Experimental Result ◽  
Switching Power Supply ◽  
Calculation Methods ◽  
Switching Power ◽  
Practical Design ◽  
Practical Engineering ◽  
Parameters Calculation

A practical design method of flyback switching power supply transformer was presented to solve the problem involved in too many formula and parameters calculation . This method explained the physics meanings of each parameter of the flyback transformer clear and concise, and gave the calculation methods and procedures of them based on practical engineering experience. An experimental result compared with the result designed by the software PI Expert 8 showed that the presented method was valid and more flexible.

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