The BEAM Circuits Collection is a BEAM Reference Library site. |
BEAM pummer circuits Wilf posted a neat, very efficient "pummer" circuit powered by one of his versions of a nocturnal solar engine (in particular, the SIMD1 / Solar Regulator): Here's Wilf's quick description of his pummer (the small bit of circuitry in the right part of the above diagram: The PowerSaver Flasher uses capacitive output coupling to produce brighter shorter flashes and has a much lower average current drain than standard bicore or 74HC14 flashers. The PS Flasher with one LED circuit (2 LEDs) runs all night from a 1F capacitor charged to 5.5V. Up to 12 LEDs can be controlled with one 74HC14 flasher and probably would run for 2 hours from a full charge. Use a range of timing resistors between 1M and 4.7M for each oscillator to give a random light show appearance.
|
||||||||||||||||
|