高频电子镇流器与自动跟踪控制的金属卤化物灯

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003. Pub Date : 2003-10-12 DOI:10.1109/IAS.2003.1257668

Chin S. Moo, Chunk K. Huang, Ying N. Hsiao

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引用次数: 22

摘要

提出了一种高频电子镇流器自动跟踪控制策略，使金属卤化物灯在无声谐振频率下工作。当发生声共振时，检测灯电压的变化，然后逐步改变工作频率，直到找到一个工作稳定的频率。在配合检测电路的情况下，采用半桥式d类负载谐振逆变器对电子镇流器进行控制。以70 W金属卤化物灯为原型，说明了自动跟踪控制的操作。

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High-frequency electronic ballast with auto-tracking control for metal halide lamps

An auto-tracking control strategy is proposed for high-frequency electronic ballasts to operate the metal halide lamp at a frequency free of acoustic resonance. In case the acoustic resonance should happen, the variation in the lamp voltage is detected and then the operating frequency is changed step by step until a frequency with stable operation is located. In cooperating with the detection circuit, the control strategy is implemented on an electronic ballast with the half-bridge class-D load-resonant inverter. A prototype designed for 70 W metal halide lamps is used to illustrate the operations of the auto-tracking control.

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来源期刊

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.

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