automatic traffic controll project circuit

LED STEREO SOUND LEVEL INDICATOR circuit

LED stereo sound level indicator for audio amplifier. Many circuits can be designed as level indicators by using a comparator IC or transistors, but... The LED stereo sound level indicator serves as a visual representation of the audio signal levels in...

Light emitting diode circuit of the temperature control

The circuit consists of two light-emitting diodes (D1 and D2) whose operation is controlled by the ambient temperature. A temperature sensor, the LM35, generates an output of 10 mV for each degree of temperature increase. A reference potentiometer, R2, is...

Mains Operated LED Circuit Schematic

Compact yet highly functional, this is a straightforward and efficient LED circuit designed to operate directly from the AC mains supply, ranging from 100 volts to 230 volts. This LED circuit utilizes a few essential components to achieve efficient operation...

led lighting management ic improves power factor and efficiency

There is significant sensitivity to operating costs when managing high-powered commercial lighting. In these applications, there is a heightened focus on energy efficiency and AC line power factor, as these parameters influence operating expenses. Electric utilities impose additional charges on...

High Resolution Digital Weigh-scale Design Using Z8 Encore! ?® Microcontrollers

The SP6691 circuit is designed to provide a high output voltage using a lower voltage boost regulator by incorporating a charge pump circuit. This configuration can convert a standard 30V boost regulator into a 60V boost regulator if necessary. Testing...

200 LEDs Christmas Lights circuit

This simple and inexpensive circuit built around a popular CMOS hex inverter IC CD4069UB offers four sequential switching outputs that may be used to control 200 LEDs (50 LEDs per channel), driven directly from mains supply. Input supply of 230V...

LED effects with ATTYNI2313

This project I made for my little daughter. It is 24 channel light illumination. The schematic is very simple 24 LEDs, 1 MCU and some additional components. The main principle is dynamic indication, which is usually implemented for control of...

LED Zeppelin game circuit

The name of our game, LED Zeppelin, is a play on words. It comes not from the pop group of the same name but from Graf Von Zeppelin, a German who invented the first rigid air ship in 1900. The...

LED Dice circuit

The IC1 is a 555 timer IC connected for astable operation. The clock pulses are fed to the IC2 via the 10K resistor. The IC2 is a 10-stage counter; output 6 (pin 5) is connected to RESET (pin 15), thus...