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  • 6 Aspect - Searchlight Signal Driver (LM555)

    2015-03-03 15:59:0887

    The circuit on this page is a 6 Aspect driver for a bicolour LED type Searchlight Signal. The available signal indications are; SOLID - RED, YELLOW, GR...

  • Analog Fan Speed Control

    2015-03-03 15:45:4276

    The large issue today that caused by more electronic equipment enters the home and the office is noise of fan. to reduce fan noise, a variable speed fa...

  • Notebook Anti Theft Protector

    2015-03-03 15:45:08141

    Here the notebook anti theft protector circuit to secure your important netbook / notebook from stealing. Basically, this is a mini security alarm gene...

  • Tone control circuit designed using LM833

    2015-03-03 15:39:4689

    Audio Circuits Using LM833 can be designed a very simple tone control circuit using few external components . For this Lm833 ton control circuit can be...

  • Phase-control

    2015-03-03 15:35:15164

    This circuit uses a PUT for phases control of an SCR. The relaxation oscillator formed by Q2 provides conduction control of Ql from 1 to 7.8 ms or 21.6...

  • USB bootloaders for AVR microcontrollers

    2015-03-03 15:32:49143

    Probably most proper microcontroller programming method is using a bootloader program. Because you dont need any special programming adapters or specia...

  • Fan speed controller using LM2941

    2015-03-03 15:30:0897

    Description. Many electronic circuits related to fan speed controlling have been published here and this one is just another approach. The circuit diag...

  • TILT SWITCH

    2015-03-03 15:29:19122

    The output is LOW at start-up due to the capacitor on pin 4. When the mercury switch closes, the output goes HIGH and remains HIGH until the reset butt...

  • Microcontroller based apps for android mobile phones

    2015-03-03 15:28:2570

    Recently I obtained a Samsung Galaxy Ace S5830 android mobile phone. It was released a year before but it seems to have enough power to run most of app...

  • Efficient Fan Speed Controller Based On The MC34063 IC

    2015-03-03 15:26:15849

    Description: The following circuit shows about Efficient Fan Speed Controller . This circuit based on the MC34063 IC. Features: Low-cost fan speed cont...

  • Classic Tone control circuit with low noise transistor

    2015-03-03 15:14:01114

    Today I meets Classic Tone control circuit. That is use lownoise transistor model. which this circuit the interesting , because transistor entirely the...

  • Remote Control Tester principle explanation

    2015-03-03 15:08:0074

    This article is a remote control tester principle explanation. By convention, in order to better grasp the principles you are, we recommend you to comb...

  • Hand Clap Electronic Control(APM4953)

    2015-03-03 14:57:24135

    This article describes the Hand Clap Electronic Control (APM4953). The principle is very simple, very practical. The circuit components can help you un...

  • DC Motor Speed Controller Project

    2015-03-03 14:32:00132

    The DC motor speed control project is intended to manage the pace of a DC motor by means of an 8051 sequence micro-controller. The pace of DC motor is ...

  • Generating a Delayed Pulse Using The 555 Timer

    2015-03-03 14:25:38114

    The circuit below illustrates generating a single positive pulse which is delayed relative to the trigger input time. The circuit is similar to the one...

  • PWM Motor Control

    2015-03-03 14:19:40483

    This is a circuit to control motor speed uses pulse width modulation (PWM). The PWM signal is generated by the ubiquitous 555 timer and output current ...

  • DTMF Remote Domestic System Control Circuit Diagram

    2015-03-03 14:19:2386

    Descriptipn: The following circuit shows about ?DTMF Remote Domestic System Control Circuit Diagram. Features: DTMF signals can be transmitted over a r...

  • Fill/Empty Water Level Controller

    2015-03-03 14:07:2985

    A controller for keeping the water level stays between upper and lower limits is described here. This water level controller is actually a water pump c...

  • Circuit Diagram Of Op Amp PID Controller

    2015-03-03 14:01:30241

    Description: The following circuit shows about Op Amp PID Controller Circuit Diagram. Features: accurately and quickly, bringing a systems (output temp...

  • 3170 IC For Telephone Remote Control Circuit

    2015-03-03 13:46:3974

    Description: This circuit bellow shows a teleremote circuit which enables switching ‘on’ and ‘off’ of appliances through telephone lines. Can b...

  • Controlling graphical 128

    2015-03-03 13:46:01116

    HQM1286404 is pretty old graphical LCD module but it is still popular. This LCD is controlled by KS0108 lcd controller via two segment drivers. LCD bac...

  • Better Volume Control

    2015-03-03 13:45:3483

    Better Volume Control[more] : how to create a log pot that is better than the real thing Designing With the LMC835 Digital Controlled Graphic Equalizer...

  • Temperature control

    2015-03-03 13:30:5477

    A couple of transistors and a thermistor in the charging network of the 555 type timer enable this device to sense temperature ^nd produce a correspond...

  • Metal halide electronic ballast constant power control circu

    2015-03-03 13:27:4196

    The circuit can increase the system power factor λ to the number higher than 0.99, and it can effectively suppress the waveform distortion of the inpu...

  • AGC circuit = Automatic gain control

    2015-03-03 13:26:09114

    The automatic gain control circuit AGC provides a signal with less harmonics and additional amplification, between certain limits. As a result, it elim...

  • Input Buffer And Output Driver

    2015-03-03 13:25:1980

    The input driver circuit is designed to reduce the signal level applied to the delay chip, to prevent any risk of overload. Since the maximum specified...

  • Tone Control using 2 transistor

    2015-03-03 13:22:1987

    Here is tone control using 2 transistor. this circuit provides a maximum cut and boost of around 10dB at 10K and 50Hz. The firstBC109C transistor is ac...

  • Digital Volume Control electronic circuit diagram

    2015-03-03 13:06:37105

    This digital volume control has no pot to wear out and introduces almost no noise in the circuit. Instead, the volume is controlled by pressing UP and ...

  • MachineCollective The Easiest DIY Controllers Of All!

    2015-03-03 12:57:1865

    Nowadays, there is more and more people showing their interest in the electronic field, especially the amount of home hobbyists grow in the exponential...

  • A Serial Infrared Remote Controller CIRCUIT (IR232)

    2015-03-03 12:45:5576

    This article describes the A Serial Infrared Remote Controller CIRCUIT (IR232). The principle is very simple, very practical. The circuit components ca...

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