Schematics
Power Amplifier
Preamplifier
Audio mixer
Audio Equalizer
DC Protection
Headphone Amplifier
Vu Meter
Tube amplifier
Loudspeakers Active crossover
Audio Filter
Audio misc
Auto - car
FM transmitter
LED
Alarm
Power Supply
Motor control
Robot
Timer generator oscilator
Computer
Microcontroller programmer PIC AT
Digital
Light controller
Laser
RF transmitter receiver
IR infrared
Medicine
Meter Tester
Video
Switch control
Solar
RC modeling
Musical instruments
Miscellaneous
Game
Data acquisition
Telephone
White LED driver schematic
LED scematics
ULTRA-BRIGHT LED LAMP works on 230V AC
AC-Powered 220V LED schematic
White LED voltage converter
White LED Flashlight Schematic
White Led Flashlight - Modified Solar Flashlight
Three-Color Display using Bicolor LEDs
SPI Interface Big 7-Seg LED
Solar Powered Night Light
Single and Two Cell White LED Drivers Without Inductors
Simplest LED Flasher circuit
RGB LED Fashion Lighting Controller
Low power LED Flasher 4
Low battery voltage flasher
LED-matrix oscilloscope
LED-BASED MESSAGE DISPLAY
LED stroboscope
LED power supply
LED Mood Light
LED modifications
LeD MaTRiX
LED Lighting Semiconductors
LED Lighting
LED lamp dimmer
LED flashlight
LED flasher circuits
LED flasher
LED Drivers for Display Backlighting and Other Portable Applications Series LED Drive vs. Parallel LED Drive,
LED driver for low voltage halogen replacement
LED dimmer uses only two lines
LED dimmer
LED Constant Current Source Scheme
High-Power LED Driver Accepts Wide Input-Voltage Range
Highly Efficient 0-100% LED Dimmer
High Efficiency 12V White LED Driver
Fun with LEDs LED Chasers
Flashing LED advertising badge
Flasher
Dual Gate Inverter Oscillator Increases the Brightness of LEDs While Reducing Power Consumption
Crossing light flashers
Constant Current LED Driver
Constant Current Buck Regulator for High Power LED Drivers
Build your own simple 9-LED Flashlight- the basics
Big 7-Seg LEDThe circuit uses a serial-in-parallel out shift register, 74HC595 for receiving serial data from uController board
Bicycle safety lights
Animated LED circuit
AC-Powered LED circuit
AC Powered White LED Strings
AC Line powered LEDs
AC Line powered LED
9V LED flasher
555 LED flasher
3V LED flasher
36-led flashlight with switching power supply
2 Transistor LED Flasher
13 Color LED Rainbow
120 VAC LINE POWERED WHITE LEDs
10” LED Backlight from a Single Cell Battery
1.5V LED flasher
