The following schematic shows the Simple 7 LED Flashlight Circuit Board Design. In this flashlight, each LED/resistor combination consumes 4.5volts at 30mA or about 135mWatts. The ballast resistor alone consumes 1.1volts at 30mA. The 7 LED Flashlight Circuit Design made of the following electronics parts and components: transistor, capacitor, power source, JFET, LED, and inductor.
Get more information regarding the design of Simple 7 LED Flashlight Circuit Diagram here [source: superpositioned.com]
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1 comment for this entry ↓
1 piyush kothari // Dec 21, 2010 at 5:37 pm
I am a first year poly student from Amravati. I like yourc structure of PCB. We will make it soon
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