12v lamp Dimmer lamp ideas circuit

Circuit diagram of an analog circuit PWM

The image illustrates a circuit that utilizes a linear potentiometer (or linear Hall element) to control the PWM generation for two chassis drive motors in a gamepad or joystick used in model aircraft. J1 represents the handle of the potentiometer,...

led vu meter

The circuit utilizes two quad voltage comparators (LM339) to illuminate a series of eight LEDs that indicate volume levels. Each of the eight comparators is biased at increasing voltages determined by a voltage divider, allowing the lower right LED to...

Flashing Heart

This circuit is a doorbell system featuring flashing LEDs to enhance its visual appeal. The integrated circuit IC1 (NE555) is utilized as a clock generator, configured as an astable multivibrator. The output frequency can be adjusted using the potentiometer VR1....

0-30 VDC Stabilized Power Supply with Current Control 0.002-3 A

The circuit begins with a step-down mains transformer featuring a secondary winding rated at 24 V/3 A, which connects across the input points at pins 1 and 2. The quality of the output supply is directly related to the transformer's...

Flickering LED Candle using Tiny45

There are many posts on Instructables detailing how to create a flickering LED candle. This version of the project requires several components. The flickering LED candle project aims to simulate the warm glow and flicker of a real candle using electronic...

Led Christmas Tree Light Flasher Circuit

Three individual flashing circuits utilizing an LM3909 LED flasher/oscillator IC create the illusion of a pseudo-random firing order. The capacitors CX1, CX2, and CX3 control the blink rate, which ranges from 0.3 to 0.8 seconds. The wide tolerance range of...

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...

8 LED`s Audio VU Meter

This circuit uses two quad op-amps to form an eight LED audio level meter. The op-amp used in this particular circuit is the LM324. It is a popular IC and should be available from many parts stores. The 1K resistors...

72 led clock

The circuit utilizes 60 individual LEDs to represent the minutes of a clock and 12 LEDs to indicate the hours. The power supply and timing circuitry are consistent with those outlined in the previous 28 LED clock circuit. The minutes...