摘要
为了保证发光二极管(LED)正常高效工作,提高LED驱动电路的功率因数,以L6561功率因数控制芯片和恒流二极管为基础,设计了一种高功率因数LED恒流驱动电源。从输出电压、负载电流和功率因数三个方面进行实验测试,实验结果表明,在宽电压范围内,该电源的恒压和恒流效果好,功率因数在0.95以上,较好地抑制了电流谐波。
In order to ensure the normal and efficient operation of Light Emitting Diode(LED)and improve its drive circuit power factor,the paper designs a high-power factor LED constant current driving power supply based on L6561 power factor control chip and constant current diode.Experimental tests are carried out from three aspects of output voltage,load currents and power factor.According to the results,the constant voltage and constant current of this supply is great under the range of wide voltage,and its power factor is above 0.95,suppressing the current harmonic well.
作者
侯磊
王晶晶
HOU Lei;WANG Jing-jing(Department of Mechanical and Electrical Engineering,Fuzhou Polytechnic,Fuzhou 350108,China)
出处
《电工电气》
2023年第9期25-29,51,共6页
Electrotechnics Electric
关键词
发光二极管
高功率因数
恒流
驱动电源
light emitting diode
high-power factor
constant current
driving power supply
