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  • Voltage Controlled Current Source

    2014-12-17 15:10:5698

    View Full Size Image View Original Application Note Adding a current sense amplifier in the feedback loop of an adjustable low dropout voltage regulato...

  • Low Drop Linear LED Driver (NUD4301)

    2014-12-17 15:07:2972

    This article describes the Low Drop Linear LED Driver (NUD4301). The content is very simple, very helpful. Components in this article can help you unde...

  • Light pen interface circuit

    2014-12-17 14:11:4573

    Whatever high quality photoelectric diode is fixed into exhaust pen pipe, it can face to the display screen to pick up light singal. If the diode is pu...

  • LED Flasher Circuit Using Transistors

    2014-12-17 13:56:1489

    Classic LED Flasher Circuit This LED flasher circuit is a classic two transistor flip flop. This flasher circuit is very popular and its usually the fi...

  • Triac Light Dimmer electronic circuit diagram

    2014-12-17 12:35:0274

    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, generates very li...

  • 12V DC Light Dimmer Circuit Using 555 Timer IC

    2014-12-17 12:22:59294

    12V DC Light Dimmer Circuit Using 555 Timer IC This is a 12 volt at 2 amp Lamp dimmer that can be used to dim a standard 25 watt bulb by controlling th...

  • PWM Motor/Light Controller CIRCUIT (1N4002)

    2014-12-17 11:53:47119

    This article describes the PWM Motor / Light Controller CIRCUIT (1N4002). The principle is very simple, very practical. The circuit components can help...

  • Temperature controlled DC fan

    2014-12-17 11:49:2890

    Description. Here is a simple circuit based on two transistors that can be used to control the speed of a 12 V DC fan depending on the temperature.A th...

  • Stribe Assembled Duos and Quads Now Available

    2014-12-17 11:01:1763

    Ready-to-play out of the box Stribe Duo and Quad assembled units are now available from the stribe kit page. Reprinted Url Of This Article: http://stor...

  • Two-LED Pilot Light (1N4007)

    2014-12-17 11:01:0679

    This article describes the Two-LED Pilot Light (1N4007). The content is very simple, very helpful. Components in this article can help you understand b...

  • LED Phototherapy Unit(BC547)

    2014-12-17 10:44:06330

    This article briefly describes the LED Phototherapy Unit (BC547). This principle is easy to understand, but also very practical. Depth understanding of...

  • LED testing tool

    2014-12-17 10:16:2378

    Everyone who works with LED's need to know what colour is the LED, how much current it needs to shine the best, what resistor is needed. Reprinted Url ...

  • Constant current high?brightness LED driver using NCL30010

    2014-12-17 09:33:53176

    Led driver circuits This LED driver electronic circuit is designed using the NCL30100 compact switching regulator controller intended for space constra...

  • Self-Latching Light-Activated Switch Circuit

    2014-12-17 09:26:21181

    When light strikes the CDS cell it turns on the transistors which activates the relay which latches. Depressing SI grounds the base of the 2N3565 and t...

  • LTC3600 LED driver circuit design project

    2014-12-17 09:15:05117

    Led driver circuits Using LTC3600 manufactured by Linear Technology, can be designed a very simple high efficiency LED driver with programmable dimming...

  • PWM Motor/Light Controller

    2014-12-17 07:43:1094

    Pulse Width Modulator for 12 and 24 Volt applications INTRODUCTION A pulse width modulator (PWM) is a device that may be used as an efficient light dim...

  • LED warning water the plants with ic 4093

    2014-12-17 06:58:52432

    Electronic users love trees. But no time and work and forget Enjoy water the plants.So the trees dry out.This circuit solves this problem.It also allow...

  • High power led driver using LM3434

    2014-12-17 05:48:1381

    Led driver circuits Using the LM3434 adaptive constant on-time DC/DC buck (step-down) constant current controller can be designed a very simple high po...

  • 7V, 50mW OLED Driver from a 2V to 5.5V input

    2014-12-17 05:29:3082

    View Full Size Image View Original LT Journal The LTC3459 controls peak inductor current when VIN is greater than or less than VOUT. This allows curren...

  • Automatic Light Switch Circuit

    2014-12-17 05:06:0497

    This light sensitive automatic light switch circuit is intended to be connected at the main 220V supply. The circuit will connect a 220V lamp when at t...

  • Two Rhythmic LED as Flashing Eyes for Halloween

    2014-12-17 04:42:4583

    Figure 1 Part List The circuit was designed to be used as flashing eyes in Halloween gadgets with the addition of rhythmic music or speech while being ...

  • Sequential Led Flasher With Reversible Direction

    2014-12-17 04:28:21167

    A 555 timer clocks a 74190 up/down counter. The 74190 drives BCD decoder driver 7442. The 7476 is used to reverse the count on 0 and 9, which results i...

  • LED VU Meter by IC LM3914

    2014-12-17 03:57:16446

    This is Circuit LM3914 LED VU Meter. use IC1-LM3914 and Transistor BC109C, By circuit will show level of audio signal(power Music) is dB in six level b...

  • Voltage Controlled Oscillator with Varactor (BB132)

    2014-12-17 02:49:01111

    This article describes a Voltage Controlled Oscillator with Varactor (BB132). The content is very simple, very helpful. Components in this article can ...

  • How to build Solar Panel Based Charger And Small LED Lamp

    2014-12-17 01:26:38139

    Description You can save on your electricity bills by switching to alternative sources of power. The photovoltaic module or solar panel described here ...

  • 1.2v LED Flasher - Joule thief

    2014-12-17 01:04:20232

    This is a 1.2-volt single transistor flyback (Joule Thief) circuit that features a third coil. With it, flash duration and brightness is much enhanced,...

  • Audio Power Indicator with 6 LED Bars

    2014-12-17 01:01:5686

    Figure 1 The circuit has been designed for loudspeakers to provide a monitoring scheme of audio power being supplied which will determine that any setu...

  • Jumbo Flashing LED Lights

    2014-12-17 00:19:0296

    This is a flashing led lights circuit powered from a 12V DC power supply that uses the well known 555 IC. Flashing lights have many and varied applicat...

  • Dual Dial Delight Radio

    2014-12-16 23:52:1890

    Introduction I sure love the smell of cut Garolite in my kitchen shop. Welcome to my #74 radio page. This is a medium difficulty project only because o...

  • Light-operated switch

    2014-12-16 23:42:2980

    This circuit uses a flip-flop arrangement of Ql and Q2. Normally Ql is conducting heavily. Light on CDS photocell causes Ql bias to decrease, cutting i...

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