低压直流电源可调光镇流器1 /spl次/ 36w T8灯

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI:10.1109/IAS.2004.1348430

P. Green

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引用次数: 0

摘要

本文表明，可以围绕IR21592设计一种有效的可调光镇流器，该镇流器由低压直流电源供电，而不是交流线路。基于IR2156的不可调光版本也可以使用与这里描述的相同的基本配置。下面的例子显示了一个由30v直流电源驱动的36w T8灯的镇流器。较低的电源电压是可能的，但是IR21592控制IC在工作之前需要向VCC引脚提供高达13 V的电源，同时由于电流很高，需要将损耗保持在可接受的水平(对于从30 V电源工作的36 W镇流器，输入电流约为1.25 a)。

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Low voltage DC supply dimmable ballast for 1 /spl times/ 36 W T8 lamp

This paper shows that it is possible to design an effective dimmable ballast based around the IR21592, that is powered from a low voltage DC supply instead of the AC line. A non-dimmable version based around the IR2156 is also possible using the same basic configuration as described here. The following example shows a ballast for a single 36 W T8 lamp driven from a 30 V DC supply. Lower supply voltages are possible, however the IR21592 control IC requires up to 13 V supplied to the VCC pin before it operates, also as the current is high large conductors, are needed to keep losses at an acceptable level (for a 36 W ballast operating from a 30 V supply the input current is around 1.25 A).

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Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.

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