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  • 120VAC or 240VAC Powered LEDs circuit diagram

    2014-12-18 00:30:00109

    You can easily activate the LED from home electrical power line with this circuit diagram. You just need to add a nonpolar capacitor and a 1Kohm / 1W m...

  • Temperature-controlled Fan Circuit

    2014-12-18 00:05:4882

    Temperature-controlled Fan Circuit Warning! The circuit is connected to 230Vac mains, then some parts in the circuit board are subjected to lethal pote...

  • LED Optocoupler circuit

    2014-12-18 00:03:53114

    This LED Optocoupler circuit uses two ordinary LEDs as the optocoupler element. When a voltage of 2V is fed to the input, LED 2 will generate a voltage...

  • LED1 Flash Telephone Voicemail Alert Circuit

    2014-12-17 23:59:5874

    A voicemail alert is a notification that someone has left you a voicemail on skype.There are types of alert:Email alert,SMS alert,Spin Vox.The cireiilt...

  • Light Ignition Circuit (LIC01)

    2014-12-17 23:57:3771

    This article describes the Light Ignition Circuit (LIC01). The content is very simple, very helpful. Components in this article can help you understand...

  • Model Lighthouse Circuit Diagram (1N4148)

    2014-12-17 23:24:20197

    This article introduces the Model Lighthouse Circuit Diagram (1N4148). The content is very simple, very helpful. Components in this article can help yo...

  • Light Flasher when Fuse Lose

    2014-12-17 23:09:0680

    In sometimes electronics our circuit Fuse torn already. Must change suddenly with the cause time Fuse we must know immediately. Then have Light Flasher...

  • Computer controlled smart turn signal circuit

    2014-12-17 22:54:52114

    Smart Turn Signals use vehicle sensors and computer control to not only shut off the turn signal appropriately and accurately under every conceivable d...

  • Photo sensing Light Alarm circuit

    2014-12-17 21:45:4178

    This be circuit warn when be become dark, or Light sensitive switch. By use electronics part the base is important , be the transistor 2N2926 and AC128...

  • Triac Based Light Controller

    2014-12-17 21:44:38101

    Triac Based Light Controller Description: This project is intended for controlling mains powered disco lighting, although there are many other possible...

  • Dancing Leds electronic circuit diagram

    2014-12-17 21:22:2383

    Parts: R1_____________10K 1/4W Resistor R2,R3__________47K 1/4W Resistors R4______________1K 1/4W Resistor R5,R6,R7______100K 1/4W Resistors R8________...

  • LED or Lamp Flasher

    2014-12-17 21:16:1791

    Minimum parts counting Designed for 3V battery operation Circuit diagram Parts: R1 33K 1/4W Resistor R2,R3 47R 1/4W Resistors C1 10?F 25V Electrolytic ...

  • Headlight Alarm Circuit

    2014-12-17 21:05:0791

    The base of Ql is connected to the car`s ignition circuit; the easiest point to make that connection is at the ignition switch fuse in the car`s fuse p...

  • Light Dependent Switch Using ORP12 Photocell

    2014-12-17 20:54:0983

    Figure 1 This light dependent switch (dark activated switch) was constructed around the operation of a ORP12 photocell where light is the most importan...

  • Single Supply Video Line Driver (AC Coupled)

    2014-12-17 20:44:5466

    View Full Size Image View Original Application Note When AC-coupling video, the waveform dynamics changewith respect to the bias point of the amplifi e...

  • How does bacteria-filled fuel cell work?

    2014-12-17 20:34:4273

    Everyone knows bacteria as a disease causing agent. But the researchers of bio Design University have proved that bacteria, the tiny micro organism is ...

  • Light to Frequency Converter TSL220

    2014-12-17 20:01:5368

    A large area photodiode and current to frequency converter combined in a clear plastic 8-pin DIL package. The output is a pulse train whose frequency i...

  • Headlights Timer

    2014-12-17 19:09:0168

    Pushbutton activated Very simple circuitry Circuit diagram Parts: R1 4K7 1/4W Resistor R2,R3 1K 1/4W Resistors C1 100?F 25V Electrolytic Capacitor (See...

  • Precision voltage controlled oscillator

    2014-12-17 18:19:28151

    The linearity of input sweep voltage versus output frequency is significantly improved by using an op amp. Reprinted Url Of This Article: http://www.ne...

  • How to build LED or Lamp Pulsar Circuit

    2014-12-17 18:06:2077

    Description This circuit operates a LED in pulsing mode, i.e. the LED goes from off state, lights up gradually, then dims gradually, etc. This operatio...

  • Voltmeter With LED For Car Battery (BC109)

    2014-12-17 17:28:3892

    This article describes the Voltmeter With LED For Car Battery (BC109). The principle is very simple, very practical. The circuit components can help yo...

  • LDR-Light Dependent Resistors

    2014-12-17 17:17:30143

    Electronic optosensors are devices that al-ter their electrical characteristics, in the presence of visible or invisible light. The best known devices ...

  • Precision Ground Referenced Voltage Controlled Current Sourc

    2014-12-17 17:13:5070

    View Full Size Image View Original Datasheet The control voltage, Vin, is converted to a charge on a capacitor that is referenced to ground. This charg...

  • InfraRed LED Flasher for Optical Switch

    2014-12-17 17:01:45109

    This circuit is used to detect objects by reflected infrared light. It can be built into a cylindrical enclosure just like an inductive proximity switc...

  • Led or Lamp Flasher Circuit

    2014-12-17 16:41:1783

    Ideal to operate 3 to 24V DC existing on-circuit lamps This circuit was designed to provide that continuous light lamps already wired into a circuit, b...

  • 1.2 - 12V / 1A Low Voltage LED Indicator Power Supply by LM3

    2014-12-17 16:19:5080

    Figure 1 This is a 1.2 12 V, max 1A power supply with a low voltage indicator LED . The indicator part includes three diodes and one LED . For example ...

  • Street light circuit.

    2014-12-17 15:40:3181

    Description. The circuit diagram present here is that of a street light that automatically switches ON when the night falls and turns OFF when the sun ...

  • Rear Fog Light Controller With Delay

    2014-12-17 15:38:5380

    We assume that you are a driver without opening the rear fog lamp and was followed closely by other vehicles. The driver behind you will slam on the br...

  • 24Vin to 5Vout @ 400mA Low Noise Slew Rate Controlled Step-D

    2014-12-17 15:19:0676

    View Full Size Image View Original Datasheet The LT1777 is a Buck (step-down) regulator designed for noise sensitive applications. It contains a dI/dt ...

  • Voltage Controlled Gain Video Amplifier

    2014-12-17 15:13:1968

    Gain adjustment will be more flexible if it controlled by a voltage signal, since we can use many methods to provide user interface. We can control it ...

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