【摘要】 介绍了高压钠灯电子镇流器的工作原理及结构,用L6561和IR2153实现了其功率因数校正以及逆变电路的控制,并给出了启动电路和串联谐振网络的传递函数,既校正了功率因数,又实现了调频调光。更多还原

【Abstract】 This paper has described the principle of a kind of electronic ballast of high-pressure sodium lamps and its block diagram.The electronic ballast has a function of active power factor correction APFC) on L6561 and its control circuit by IR2153.And in this paper the ignition circuit as well as the transfer function of the series resonance circuit has been offered at the same time.With the electronic ballast,the lamp can be dimmed by frequency modulation,and the power factor of the load can be corrected.更多还原