Power-factor-corrected distortion-free constant-voltage constant-current AC power supply using variable capacitance devices

2003 ◽  
Author(s):  
A. Katsuki ◽  
T. Arai ◽  
M. Matsushima
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Constant Current ◽  
Constant Voltage ◽  
Variable Capacitance ◽  
Ac Power ◽  
Free Constant

A multipurpose power supply for constant current, constant voltage, and constant power applications

2021 ◽  
Vol 92 (11) ◽  
pp. 114706
Author(s):  
Geethanjali Pandeswara ◽  
Naresh Pasula ◽  
Geshma Kumari R
Keyword(s):  
Power Supply ◽  
Constant Current ◽  
Constant Voltage ◽  
Constant Power

Proposal of a low cost high frequency isolation high power factor AC-DC-AC power supply

2011 ◽  
Author(s):  
Rene P. T. Bascope ◽  
Luiz D. S. Bezerra ◽  
Levy F. Costa ◽  
Francisco K. A. Lima ◽  
Cicero M. T. Cruz
Keyword(s):  
Power Factor ◽  
High Power ◽  
Power Supply ◽  
High Frequency ◽  
Low Cost ◽  
Ac Power ◽  
High Power Factor

Fly-Back Mode Constant Current LED Driver

2014 ◽  
Vol 530-531 ◽  
pp. 1093-1099
Author(s):  
Jia Zhi Yang ◽  
Sheng Li Yi ◽  
Fei Yang ◽  
Cun Bo Jiang ◽  
Xi Le Wang ◽  
...  
Keyword(s):  
Power Supply ◽  
High Efficiency ◽  
Life Time ◽  
Constant Current ◽  
Constant Voltage ◽  
Output Current ◽  
Led Driver ◽  
Current Feedback ◽  
Low Load ◽  
Long Life

LED driver plays an important role in unleashing many advantages of LED, such as high efficiency, long life-time. A constant current fly-back LED driver based on TOP222 is designed in this paper, and the transformer of the constant current power supply and the constant current feedback circuit are deeply researched. The experiment shows that, the output current of the LED driver is 1A, the output power is 10W, the power supply works in constant voltage mode within the low load situation. The result shows that the driver featured with good stability, constant-current characteristic, and high efficiency, is capable for driving LED.

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