摘要
针对1kW农用高压钠灯、高强度气体放电(HID)金卤灯,开发出了适合220V交流输入的1kW数字式电子镇流器;设计了基于临界模式Boost型有源功率因数校正(PFC)控制器MC33262的PFC环节,效率达到97%,功率因数近似为1。全桥逆变器工作在LC谐振网络的感性区,降低了开关管的开通损耗,整机效率达到96.5%。利用单片机实现了负载开路、短路的保护,以及精确的输出功率闭环控制。
This paper presents a design of 220V AC digital electronic ballast for lkW agricultural high pressure sodium lamp and Metal Halide Lamp （HID Lamps）.The Boost Power Factor Correction （PFC） stage is based on the critical mode PFC controller 33262,the Boost PFC reach 97% efficiency,power Factor close to 1 the full-bridge inverter operated at the LC resonant inductive area,which lowered the opening loss and made the unit efficiency reached 96.5%.The MCU paves the way to achieve the open or short-circuit protection and precise closed-loop output power.
出处
《电力电子技术》
CSCD
北大核心
2007年第10期61-63,共3页
Power Electronics
关键词
单片机
功率因数
镇流器/高强度气体放电灯
脉冲启动
micro control unit
power factor correction
ballast/high intensity discharge lamp
pulse start
