DIY Ghost Buster Pack LEDs!
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Use an LED Matrix Horizontally
LEDs provide a convenient way to electronically display information. Although the seven-segment LED display, arranged in the form of the digit 8, is common.
The seven-segment LED display is a widely used electronic component for visual representation of numerical information. It...
Battery-Voltage Measuring Regulator
This circuit enables a microprocessor system to measure its own battery voltage. A Texas Instruments TI43 precision shunt regulator functions as a precise reference and integrator/amplifier, measuring its own supply through voltage-dependent charge and discharge time intervals. It is important...
Build A 10 Amp 13.8 Volt Power Supply
Sometimes amateurs like to home-brew their power supplies instead of purchasing one off the shelf at any of the major ham radio retail dealers. The advantage to rolling your own power supply is that it teaches us how they work...
16 Stage Bi-Directional LED Sequencer
The bi-directional sequencer employs a 4-bit binary up/down counter (CD4516) and two "1 of 8 line decoders" (74HC138 or 74HCT138) to produce the widely recognized Nigh.
The bi-directional sequencer circuit is designed to manage the sequencing of outputs based on a...
10 led VU Meter using LM3915
The circuit diagram illustrates a straightforward circuit design featuring 10 LEDs. It employs a series of half-wave rectification using the precision IC2 TL071, along with a single LM3915 IC that regulates the LEDs, functioning as a VU meter indicator. The...
LED dimmer circuit
Typical segment display LEDs consume around 25 mA for each segment and should be limited to this current with resistors. For a six-digit display to be current limited, at least 42 series resistors are needed. The brightness of the LEDs...
MAX668 16V 4.4A switching power supply circuit design electronic project
A simple 16-volt switching power supply circuit can be constructed using the provided diagram, which is based on the MAX668 constant-frequency, pulse-width modulating (PWM), current-mode DC-DC controller. This integrated circuit is designed for a wide range of DC-DC conversion applications...
led traffic lights
The LED traffic light circuit manages six LEDs (red, yellow, and green) for both north/south and east/west traffic directions. The timing sequence is produced using a CMOS 4017 decade counter in conjunction with a 555 timer. Outputs 1 through 4...
Lighting designs with flicker-free LED dimming
LED lighting is becoming increasingly prominent in both residential and commercial lighting markets. To enhance the success and adoption of solid-state lighting in retrofit lamps, it is essential for LED lamps to support dimming with existing controllers and wiring. However,...