Dimmer circuit | Next Electronics

A simple and effective LED-based night lamp circuit is designed to operate directly from the 230V mains supply. The circuit utilizes a total of 24 white LEDs, producing an output of approximately 15W. Current limiting is achieved through resistor R1...

Led flasher

A relaxation oscillator is employed to flash an LED in the base circuit. The capacitor C1 is charged slowly through resistor R1 by the power source, and then it is discharged periodically through resistor R3 and the LED by the...

A DC motor PWM speed control circuit

Most governors utilize pulse width modulation (PWM) and pulse position modulation (PPM) in their circuits. The 555 timer is commonly used in these applications. The pulse width is typically fixed at 0.5 milliseconds, which is essential for the functioning of...

LED Christmas Lights Circuit

Have you already set up a Christmas tree in your house and decorated it with traditional lights? Build a couple of these LED lights to enhance the Christmas atmosphere. The project involves creating LED lights that can be used to decorate...

led dot matrix display

This project demonstrates how to drive a dot matrix LED display consisting of 64 LEDs arranged in an 8x8 configuration or a smaller configuration, such as 35 LEDs arranged in a 7x5 layout. To drive a dot matrix LED display, a...

12 led vu meter circuit

This circuit provides a simple visual indication of audio level signals, adaptable to various user requirements. It can be configured for different input levels, which can be adjusted using trimmer potentiometers TR1 (state) and TR2 (gain). The audio signals are...

Motor Control circuit II

This circuit is 12 volt motors and lights well regulated. The scheme operates with PWM (Pulse Width Modulation). By IC1, a 555 is a square wave generated by a controllable duty cycle. This means that the width of the pulse...

Display Backlighting Using High-Brightness LEDs and SEPIC Power Modules

This application note discusses the use of SEPIC power modules to supply the necessary power for driving high-brightness LED arrays. These arrays serve as display backlights and necessitate a wide dimming range. The SEPIC configuration offers an efficient and adaptable...

ledlamp

Building a computer-controlled LED lamp with an ATMEL microcontroller. The project involves designing a computer-controlled LED lamp utilizing an ATMEL microcontroller as the central processing unit. The core components of this circuit include the ATMEL microcontroller, a power supply, various LEDs,...