这是一个来自于网站 Circuits DIY [1] 中的一篇博文，名字很有趣：Simple Joule Thief Circuit [2] ，直译为焦耳偷窃电路。这个电路允许使用一个低压电池（比如1.5V的干电池）去点亮一个原本需要1.85V才能够点亮的白色LED。在博文 几种不同颜色LED的V-A曲线 [3] 中，给 ...

Discover how to create a functional DIY solar panel using a compact disc, copper foil, aluminum foil, and LEDs in this ...

Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides clear results in just seconds. For related tutorials and step-by-step build ...