| 基于单周电流峰值控制的金卤灯电子镇流器 |
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| 引用本文： | 左壮,张相军,徐殿国. 基于单周电流峰值控制的金卤灯电子镇流器[J]. 电力电子技术, 2007, 41(10): 44-46 |
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| 作者姓名： | 左壮 张相军 徐殿国 |
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| 作者单位： | 哈尔滨工业大学,黑龙江,哈尔滨,150001;哈尔滨工业大学,黑龙江,哈尔滨,150001;哈尔滨工业大学,黑龙江,哈尔滨,150001 |
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| 摘 要： | 提出了一种基于半桥双Buck结构的两级低频方波金卤灯电子镇流器.前级为功率因数校正电路;后级双Buck电路为金卤灯提供150Hz低频方波电流,有效地避免了声共振的发生.单周电流峰值控制策略的采用,克服了逆变电路换向期间的电流过冲问题;AVR照明专用单片机的运用,保证了控制策略的实现,并且简化了控制电路.通过70W金卤灯电子镇流器的样机实验,验证了电路及控制策略的可行性.
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| 关 键 词： | 照明 镇流器 控制/高强度气体放电灯 |
| 文章编号： | 1000-100X（2007）10-0044-03 |
| 修稿时间： | 2007-09-10 |
A Novel Electronic Ballast for HID Lamps based on Peak Current Control Strategy with Single Cycle Control |
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| ZUO Zhuang,ZHANG Xiang-jun,XU Dian-guo. A Novel Electronic Ballast for HID Lamps based on Peak Current Control Strategy with Single Cycle Control[J]. Power Electronics, 2007, 41(10): 44-46 |
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| Authors: | ZUO Zhuang ZHANG Xiang-jun XU Dian-guo |
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| Affiliation: | Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | This paper presents a low-cost low-frequency square-wave digital electronic ballast for high density discharge(HID) lamps.A highly efficient and reliable topology-dual Buck half-bridge inverter(DBI) was adopted to supply the lamp with low-frequency square-wave positive and negative current avoiding acoustic resonances.The constant bus voltage was provided by the front end PFC stage.The DBI was controlled to operate under ZVS condition and the problem of excessive inductor current during low-frequency reversal transient was solved by single cycle control.The AVR special microcontroller for HID ballast was used to raise control performance and simplified the control circuit.The presented circuit is verified with experimental results.A prototype of 70W digital HID ballast has been built with the whole efficiency of 92%. |
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| Keywords: | lighting ballast control/high density discharge lamp |
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