Circuit diagrams and schematics - Electronic projects

Reverse engineered circuit diagram of one more commercially produced solar lamp. This one is very similar to the one above, but it is brighter and contains an extra capacitor. Read more original source: http://members.shaw.ca/novotill/SolarGardenLight/index.htm

You have probably seen “magic lamp” circuits in which an ordinary incandescent bulb is lit by a match. These circuits rely on a hidden temperature or light sensor and are not particularly interesting. I decided to make a magic lamp, too! But, to make it more interesting, I decided to just use plain old magic [...]

This is Easy Lamp Flasher, I uses NAND Gates IC 4011. Circuit is an astable multivibrator generating at 50% duty-cycle square wave about 1Hz. The C1 – 47uF capacitors and R1 – resistors are determine the flasher rate frequency. You must uses High current power supply for lamp only. I use power mosfet for driver [...]