超亮的LED闪光灯

　　这是一种新型的闪光电路，使用一个单一的晶体管驱动LED闪光。照片中的闪光LED为直径为3mm。一个普通的LED将不起作用。不能改变闪烁频率，高亮度白光LED的亮度可以调整，通过改变1k电阻、100U电解电容、4K7、10K电阻。
原文：
This is a novel flasher circuit using a single driver transistor that takes its flash-rate from a flashing LED. The flasher in the photo is 3mm. An ordinary LED will not work. The flash rate cannot be altered by the brightness of the high-bright white LED can be adjusted by altering the 1k resistor across the 100u electrolytic to 4k7 or 10k. The 1k resistor discharges the 100u so that when the transistor turns on, the charging current into the 100u illuminates the white LED. If a 10k discharge resistor is used, the 100u is not fully discharged and the LED does not flash as bright. All the parts in the photo are in the same places as in the circuit diagram to make it easy to see how the parts are connected.


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