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  • Processor Fan Control Circuit With BC557 Transistor

    2015-03-03 07:25:43354

    Description: The following circuit shows about Processor Fan Control circuit. Features: controllers increased and decreased processor temperature, fan ...

  • L298N Motor Controller Theory and Projects

    2015-03-03 07:19:01246

    Dual Full-Bridge DriverL298N Pinning figure 1 The L298N is an integrated monolithic circuit in a 15-lead Multi watt and PowerSO20 packages. It is a hig...

  • Smart Heater Controller

    2015-03-03 07:17:3395

    Minuscule circuit of the electronic heater controller presented here is built around the renowned 3-Pin Integrated Temperature Sensor LM35 (IC1) from N...

  • Guitar or Bass Midrange Control (TL062)

    2015-03-03 07:17:32137

    Fully sweepable midrange frequencies from 160Hz to 1KHz Circuit diagram: Parts: P1______________10K Linear PotentiometerP2______________22K Log. Potent...

  • Infrared Remote Control Switch

    2015-03-03 07:17:0573

    Infrared Remote Control Switch Circuit Remote controls, specially cordless type, are very popular nowadays. Here is a simple and cost-effective cordles...

  • Sensing Sound Wave with microcontroller

    2015-03-03 07:14:2195

    Sound wave can be sensed by using sound sensor. If you are designing some kind of robot, sometimes it is useful to enable sensing of sound. Then you ca...

  • Ballast Control (FAN7710)

    2015-03-03 07:06:1085

    This article briefly describes the Ballast Control (FAN7710). Although this circuit is very easy to understand, but also very practical. Circuit elemen...

  • Tone control circuit schematics

    2015-03-03 06:58:33108

    This article describes the tone control circuit schematic. This circuit provides a maximum cut and an increase of about 10 db at 10 k and 50 Hz. As the...

  • Theremin controller CIRCUIT (CD4510)

    2015-03-03 06:58:27100

    This article describes the Theremin controller CIRCUIT (CD4510). The principle is very simple, very practical. The circuit components can help you unde...

  • NE555 IC For Wiper Speed Control Circuit Diagram

    2015-03-03 06:56:28128

    Descriptipn: The following circuit shows about NE555 IC For Wiper Speed Control Circuit Diagram. Features: from once a second to once in ten seconds, h...

  • Dc servo bipolar control

    2015-03-03 06:46:22111

    This circuit accepts bipolar control inputs of ? 5 V and provides a phase-chopped output to a dc load (such as a servo motor) of the same polarity as t...

  • Water Pump Relay Control (BC337)

    2015-03-03 06:42:18105

    Water reservoir automatic level control Circuit diagram: Parts: R1,R2___________15K 1/4W ResistorsR3______________10K 1/4W ResistorR4_______________1K ...

  • Microcontroller Circuit Diagram

    2015-03-03 06:39:31106

    Description: Can work in all 2323 chips but better is AT90LS2323 with working voltage 2.7 – 6 volts.The micro controller that I use is AT90S2323 with...

  • Cheap Pump Controller(1N4004)

    2015-03-03 06:34:4477

    This article describes the Cheap Pump Controller (1N4004). The principle is very simple, very practical. The circuit components can help you understand...

  • Automatic Door Light Switch

    2015-03-03 06:32:39145

    This automatic door light switch circuit turns ON a lamp when a door is opened then turns it OFF when the door is opened again. The working principle o...

  • Hi-Fi Tone Control circuit diagram

    2015-03-03 06:28:2282

    This is a cheap high fidelity (hi-fi) tone control circuit. The schematic is one channel (mono) tone control, build the similar circuit will make it be...

  • UHF RADIO CONTROL Using ATtiny

    2015-03-03 06:27:40101

    The controller will be used on the UHF transmitter. It converts a standard PPM sum signal input to a modified one which is feed into the radios modulat...

  • Prevent Treble Dull in Volume Control

    2015-03-03 06:26:0567

    When the volume control is turned down, sometimes it causes the sound to be dulled. The series resistance of the pot interacting with the capacitance o...

  • Electronic Thermostat and Relay Circuit

    2015-03-03 06:22:21138

    Here is a simple thermostat circuit that can be used to control a relay and supply power to a small space heater through the relay contacts. The relay ...

  • Automatic opening and closing curtain controller circuit

    2015-03-03 06:10:1386

    The controller can automatically identify the brightness of the room to make the curtains opening and closing with the best natural light. In Figure 1,...

  • Single Op-Amp Tone Control

    2015-03-03 06:06:06136

    This is single op-amp tone control circuit. This circuit is a hybrid low-pass, high pass and one-pole circuits with attenuation and gain. This circuit ...

  • Jogging Timers

    2015-03-03 06:03:4290

    Parts:R1 47K 1/4W ResistorR2 10M 1/4W ResistorR3 1M 1/4W ResistorR4 12K 1/4W Resistor (see notes)C1,C3 10F 25V Electrolytic CapacitorsC2 100nF 63V Poly...

  • Infrared remote control tester circuit with Radio Shack 276-

    2015-03-03 05:53:1069

    infrared remote tester circuit Today,Free Circuit dot com would like to show you?used small infrared remote control tester circuit for controlling the ...

  • VHF/UHF TV Modulator

    2015-03-03 05:49:44108

    Simple oscillator that generates a frequency in the VHF or UHF region. The oscillator is modulated with the video signal and the modulated carrier wave...

  • IR Remote Control Tester Circuit

    2015-03-03 05:46:3074

    Description: The following circuit shows about IR Remote Control Tester Circuit. Features: transistor T1 conducts during negative pulse period, data ou...

  • Remote control door bell alarm switch circuit diagram

    2015-03-03 05:45:50126

    This article is the summary of remote control door bell alarm switch circuit diagram. Do you have any idea on the circuit and opinions, welcome to cont...

  • IR remote control extender(CA3140)

    2015-03-03 05:45:4389

    This article describes the IR remote control extender (CA3140). The content is very simple, very practical. The components of the article can help you ...

  • Stitching Machine Motor Speed Control

    2015-03-03 05:26:0775

    Motor operated stitching machines have a series of carbon buttons in an enclosure operated by foot pedal. As the pressure on the foot pedal is increase...

  • PWM Motor Control Circuit (1N5818)

    2015-03-03 05:24:19772

    This article describes the PWM Motor Control Circuit (1N5818). The principle is very simple, very practical. The circuit components can help you unders...

  • PicCon ? Hidden Radio Transmitter Controller (SSI75T202)

    2015-03-03 05:23:4169

    This article describes the PicCon - Hidden Radio Transmitter Controller (SSI75T202). The content is very simple, very helpful. Components in this artic...

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