一种高效反激式开关电源的设计与性能测试  

Design and performance tests of a flyback switching power supply with high efficiency

作　　者：王振宇[1] 成立[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《电子技术应用》2008年第4期66-69,共4页Application of Electronic Technique

摘　　要：采用有源功率因数校正(APFC)芯片TDA4863及DC/DC变换器芯片NCP1207设计了一种实用反激式开关电源。样机实验结果表明,所设计开关电源的功率因数高于0.95,整个电源系统的效率>85.8%,且总谐波电流畸变率<3.75%,电磁污染程度较低,因而此电压具有较高的实用价值。Using active power factor correction （APFC） chip TDA4863 and DC/DC converter chip NCP1207,a practical flyback switching power supply was designed. Experimental results on prototype show that power factor of the switching power supply with APFC reaches 0.912-0.979, efficiency of the whole supply system is higher than 85.8%, and the total harmonic current distortion （THD） is under 3.75%, which indicates the level of electromagnetic pollution is lower. Therefore, the designed supply has high practical value.

关 键 词：功率因数校正 TDA4863 NCP1207 开关电源 

分 类 号：TN86[电子电信—信息与通信工程] TN624