摘要
文中分析了有源功率因数校正的基本原理,并采用平均电流控制芯片UC3854A/B设计出3.8kw的高功率因数变换器。它基于电流跟踪技术、通过控制电感电流使其按正弦半波规律变化来提高网侧功率因数。结果表明,该设计电路功率因数高,输入电流失真度低,可明显的改善电网运行质量。
The essential principle of active power factor correction is analyzed in the paper, 3.8kw high power factor converter is designed using average current control chip UC3854A/B It is based on the technique of current tracking and enhances electrical network's power factor through controlling inductance's current to make it change according to half wave of sin function. The result indicates that this system has the advantage of high power factor and low input current's distorties rate which can improve the quality of electrical network obviously.
出处
《电子质量》
2003年第12期62-64,共3页
Electronics Quality
