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  • Automatic Control for LCD Panel Backlight

    2014-12-16 13:41:39125

    This is an Automatic LCD Panel Backlight Control circuit. This is a simple low cost implementation of an LED controller. It can compensate for aging ef...

  • LF Crystal Controlled Oscillator

    2014-12-16 13:40:34120

    Description The RF engineer sometimes has to look for an instrument that will check a low frequencyquartz crystal unit reliably and rapidly. This is a ...

  • Agricultural application pesticide light control black light

    2014-12-16 13:24:5368

    During the day, the black light lampdoes not light. At night, 3DG12 turns on, at the same time, 3AD30 produces oscillation, it is rised by transformer,...

  • How to build 73 MHz Hallogene Lamp Radio-Controlled

    2014-12-16 11:29:1378

    Circuit diagram This circuit is a 73 MHz Hallogene Lamp Radio-Controlled. The purpose of it is to control the power state of a hallogene lamp by a remo...

  • Fading LED by LM358

    2014-12-16 11:23:50248

    This circuit uses op-amps to obtain a triangle wave. The triangle wave causes the Led to slowly get brighter and then slowly get dimmer until it isnt p...

  • UP/DOWN FADING LED Circuit

    2014-12-16 10:54:15155

    UP/DOWN FADING LED Circuit A Circuit that fades an LED on and off. Overview These two circuits make a LED fade on and off. The first circuit charges a ...

  • How to build Midnight Security Light Circuit Schematic

    2014-12-16 10:39:33136

    Description Most thefts happen after midnight hours when people enter the second phase of sleep called ‘paradoxical’ sleep. Here is an energy-savin...

  • PIC16F84A LED blinking code + Proteus simulation

    2014-12-16 10:36:39655

    This post provides the code to make an LED blink using PIC16F84A microcontroller. This code is written in C language using MPLAB with HI-TECH C compile...

  • Efficient LED Driver Works with Single AA Cell

    2014-12-16 10:33:09210

    This driver circuit is not only boost the voltage to enable a single battery cell to power? two red LEDs or one white LED, but also regulate the curren...

  • How to build TRIAC Light Dimmer

    2014-12-16 10:24:2986

    Description This little circuit can be used to dim lights up to about 350 watts. It uses a simple, standard TRIAC circuit that, in my expirience, gener...

  • AC Powered-LED Flasher (1N4007)

    2014-12-16 10:22:37212

    This article describes the AC Powered-LED Flasher (1N4007). The content is very simple, very helpful. Components in this article can help you understan...

  • Headlight-alarm

    2014-12-16 10:18:5977

    Piezo buzzeris connected to one side of the instrument panellight fuse. QL with base connected to the vehicles ignition circuit. When the ignition swit...

  • Feel the Colorful World with LED Painter PCB

    2014-12-16 09:55:5475

    Do you want to try something different with the LED? If you do, then today is your lucky day. By using the Texas Instrument TLC5940, you can create a 1...

  • LED flasher(ICL7660)

    2014-12-16 09:23:26129

    This article describes the LED flasher (ICL7660). The content is very simple, very practical. The components of the article can help you understand bet...

  • Touch controlled musical bell.

    2014-12-16 08:54:3373

    Description. This circuit produces a musical tone whenever someone touches the touch point designated as TP in the circuit. The circuit works from two ...

  • New RGB Backlighting System for Liquid Crystal Display

    2014-12-16 08:26:5372

    We provide you with an article contain information about new backlighting system forLiquid Crystal Displays (LCDs) utilize RGB LED lightsources, an opt...

  • 40KHZ LIGHT RECEIVER AMP

    2014-12-16 07:30:2373

    This circuit is similar to 30KHZ LIGHT RECEIVER AMP but provides more gain and operates up to 40KHz. However it draws more power supply current . Repri...

  • Mind/Though Controlled Robot Arms

    2014-12-16 05:28:4967

    Human mind is an excellent feature in Gods creation. Only with our mind, our body parts are controlled and made to do certain activities. Thus when a p...

  • LED Chaser Provides Three Game Functions

    2014-12-16 05:22:0579

    This circuit is essentially a light chaser but it can also be set to provides heads or tails (Two Up) or a Dice (die). It also has a speaker to simulat...

  • Digitally Controlled High Frequency VGA

    2014-12-16 04:52:3065

    Variable-gain amplifiers (VGAs) can be used in may types of systems, such as radio receivers. In this system, the input signal voltage depends on an un...

  • Multimedia video LED dot matrix drive circuit diagram

    2014-12-16 04:27:4766

    Reprinted Url Of This Article: http://www.seekic.com/circuit_diagram/LED_and_Light_Circuit/Multimedia_video_LED_dot_matrix_drive_circuit_diagram.html...

  • Rs232c-led-circuit

    2014-12-16 04:25:3773

    Use a pair of Maxim`s 5V-powered MAX231 RS-232C transmitters as drivers to obtain a 2-color LED. The transmitters require only a singleended, 5-V input...

  • EL7513 led driver circuit

    2014-12-16 04:19:1877

    Led driver circuits A very simple white led driver schematic circuit can be designed using the EL7513 constant current boost regulator specially design...

  • Flashy Light Circuit Schematic (CD4069UB)

    2014-12-16 02:13:01306

    This article describes the Flashy Light Circuit Schematic (CD4069UB). The content is very simple, very helpful. Components in this article can help you...

  • Digitally Controlled Phase Shifter

    2014-12-16 01:30:31107

    As shown in a schematic diagram below, this circuit implementation of phase shifter circuit? is well suited to using digital potentiometer? to control ...

  • Air craft warning light circuit

    2014-12-16 01:21:00109

    Introduction. Here is low cost circuit that can be used for implementing a warning light on the top of tall structures as a warning for low flying airc...

  • Car Speeding Lights

    2014-12-16 01:13:0378

    The op amp car speeding indicator comparator is used to compare a dc converter output threshold voltage. When the input frequencies above 100 Hz, the c...

  • Christmas Tree Lights Flasher with 7812 LM380

    2014-12-16 01:04:1897

    This is Circuit Christmas Tree Lights Flasher with 7812 for supply regulator and IC LM380 for Signal generator dirve relay on-off the lamp two set. det...

  • Three Channel, Single Supply Video Line Driver (AC Coupled)

    2014-12-16 01:01:32108

    View Full Size Image View Original Application Note The LT6553 ultra-high-speed triple video driver configured for single-supply AC-coupled operation. ...

  • Light interruption detector

    2014-12-16 00:08:54124

    When the light incident on the LASCR is interrupted, the voltage at the anode to the 2N4990 unilateral switch goes positive on the next positive cycle ...

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