philips emergency light circuit

Knightrider lights for model cars circuit

This simple circuit drives six LEDs in a "Knightrider scanner mode." Power consumption primarily depends on the type of LEDs used, particularly when utilizing a 7555 (the CMOS version of the 555 timer). The circuit is designed to create a visual...

Led bar-graph driver

The circuit utilizes CA3290 BiMOS dual voltage comparators. The non-inverting inputs of A1 and A2 are connected to a voltage divider reference. The input signal is applied to the inverting inputs. LEDs are activated when the input voltage reaches the...

Dancing LED's circuit

Here is a simple circuit which can be used for decoration purposes or as an indicator. Flashing or dancing speed of LEDs can be adjusted and various dancing patterns of lights can be formed. The circuit consists of two astable...

led light circuit schematics

This circuit should only be attempted by individuals with a strong understanding of electronic devices. It is connected to a main power source (220V) and poses a risk of high electrical shock. This circuit operates at a mains voltage of 220V,...

LED Dance Pad

The design utilizes LEDs as light sensors on a DDR pad, which has been engineered to have no moving parts. Instead of relying on physical feedback, the pad measures light reflectance from the user's feet to detect when an arrow...

LED Flashlight circuit with MAX1811

White LEDs have a rated current at a voltage drop of about 3.3 to 3.4 V. It is ideal to be powered from the battery voltage which is slightly larger. Then there is the best energy used. In this I...

Dark-activated LED or Lamp Flasher

This circuit adopts the rather unusual Bowes/White emitter coupled multivibrator circuit. The oscillation frequency is about 1Hz and is set by C1 value. The LED starts flashing when the photo resistor is scarcely illuminated. The onset of flashing can be...

how to build a simple led light chaser circuit

This article offers a circuit diagram and a discussion on CMOS logic and IC layout for creating a set of attention-getting LED running lights. It details a simple sequential LED flasher or light chaser that can be built, including the...

LED monitor for 12V Battery

A Very Simple circuit and some Variations. Play with it. All parts are cheap and should be easily obtained. None are very critical. The circuit in question is a basic electronic assembly designed for educational purposes and experimentation. It typically consists of...