Position: Index > Switch Circuit >
  • How to build Relay Timer switch

    2015-10-11 04:43:1369

    Description In Fig.1 see a 100 second delayed turn ON relay RL1 switch, if plug power 12V in circuit. In Fig.2 see a two range 6-60 second and 1-10 min...

  • 5V Switching Regulator Circuit (LM2575)

    2015-10-11 00:50:24107

    Switching Regulator for High Power Efficiency When you should regulate a high voltage to a much lower voltage, switching regulator must be the only cho...

  • Voice-operated-switch

    2015-10-10 21:24:2174

    The sound picked up by SPKRl, which acts as a microphone, is fed to transistor amplifier Ql. The output of Ql is applied across coupling transformer T1...

  • The ADG333A Quad SPDT Switch Datasheet for Charge Injection

    2015-10-10 19:21:5964

    Below isthe circuit test schematic of ADG333A IC for charge injectionpurpose. Charge Injection is terminology which can be defined as measure of the gl...

  • Touch-on-off-electronic-switch

    2015-10-10 14:59:1679

    Transistors Ql and Q2 control latch Q3 and Q4 to switch on the lamp. A high resistance from touching the electrode biases Qlor Q2 on, setting or resett...

  • IR Remote Switch(NE555)

    2015-10-10 09:44:4790

    This article describes the IR Remote Switch (NE555). The principle is very simple, very practical. The circuit components can help you understand bette...

  • Telephone Switcher circuit diagram

    2015-10-10 05:55:4464

    This diagram is the schematic diagram of telephone switcher using relays. This device connects to the telephone line and can be used to remotely contro...

  • On-Off Switch with Latching Relay

    2015-10-10 05:07:2574

    The circuit below switches AC or DC power to a load using an ultra low power 3v latching relay with two coils. The relay can handle about 10 amps of cu...

  • Transformerless, Switch Mode Boost Regulator, A Step-Up Conv

    2015-10-09 23:25:2781

    Using this switch mode regulator circuit, you can get a stable 12 volt output (500mA) although you just have 4,3 10V power supply. You can even boost a...

  • Infrared switch using any infrared remot(74LS74)

    2015-10-09 19:06:13124

    This article describes the Infrared switch using any infrared remot (74LS74). The content is very simple, very practical. The components of the article...

  • How to build Fog Lamp Switch Circuit

    2015-10-09 18:10:4164

    Description In most countries it is now mandatory or at least recommended to have a rear fog light on a trailer with the additional requirement that, w...

  • High Frequency Switch (2N4391)

    2015-10-09 17:31:5181

    This article describes the High Frequency Switch (2N4391). The content is very simple, very helpful. Components in this article can help you understand...

  • Touch-sensitive switch

    2015-10-09 09:14:31111

    A high impedance input is provided by Ql, a general purpose field effect transistor 741 op amp is used as a sensitive voltage level switch which in tur...

  • Switching supply computer 5V 15A 12V

    2015-10-09 07:48:2473

    Today I leads Switching supply computer Circuit. Come to give friends in see again. By this circuit has can to give electricity pressure 5V 15A,-5V 1A,...

  • How to build 220V AC Lamp Toggle Switch Circuit

    2015-10-09 07:25:5675

    Description Due to the low current drawing, the circuit can be supplied from 230Vac mains without a transformer. Supply voltage is reduced to 12Vdc by ...

  • Video Switch for Intercom System(CD4066)

    2015-10-09 04:53:48151

    This article briefly describes the Video Switch for Intercom System (CD4066). This principle is easy to understand, but also very practical. Depth unde...

  • CV/CC charger circuit diagram designed using LinKSwitch

    2015-10-09 00:20:3078

    Battery charger circuits A very simple 3.25W CV/CC charger can be designed using LinKSwitch || family IC manufactured by Power Integrations. This elect...

  • Radio Buttons Using Push On Switch Latching Circuit

    2015-10-08 14:54:1568

    This is a switching circuit that provide latching mechanism to make a set of radio buttons using push buttons. This circuit consist of interlocking cir...

  • IC CD4011 Touch Switch Circuit Diagram (CD4011)

    2015-10-08 13:35:2887

    This article describes the IC CD4011 Touch Switch Circuit Diagram (CD4011). The content is very simple, very helpful. Components in this article can he...

  • Video Switch CIRCUIT (CD4017)

    2015-10-08 13:31:5694

    This article describes the Video Switch CIRCUIT (CD4017). The content is very simple, very helpful. Components in this article can help you understand ...

  • Plus a two-wire intercom telephone switch principle explanat

    2015-10-08 10:54:5169

    Next is a two-line intercom plus telephone switch principle explanation. The most effective way is to grasp the principle of combining schematic view t...

  • Negative Voltage Load Switch

    2015-10-08 10:18:0664

    Description The idea is simply to turn off the negative voltage load. Some examples:- - Bias votlages for LCD panels - RF Amplifiers - Audio Amplifiers...

  • Switching Regulator 0.5A by LM2574

    2015-10-07 16:31:1867

    The LM2574 series ofregulatorare monolithic integrated circuits that provide all the active functions for astep down(buck) switching regulator, capable...

  • Battery Switch With Low-Dropout Regulator

    2015-10-07 13:32:3872

    In the form of the LT1579 Linear Technology (www.linear-tech.com) has produced a practical battery switch with an integrated low-dropout regulator. In ...

  • A voice-activated switch circuit

    2015-10-07 13:22:3472

    This article is a voice control switch circuit. The circuit is not new, but it proved so useful, simple and cheap, worth building. This circuit USES aM...

  • Clap Switch Circuit

    2015-10-07 11:53:53380

    A clap switch circuit is a classic beginners project. Equipment can be switched on and off by just clapping your hands. Add a tiny microcontroller and ...

  • Clap Triggered Switch

    2015-10-07 07:17:1166

    This is circuit of Clap Triggered Switch. When the circuit detects tap, or short whistle or a clap, this circuit will toggle the LEDs. 33k and 5K6 char...

  • Inductorless Switching Regulator Boosts Input Voltage

    2015-10-07 03:19:0570

    Uses the MAX641 switching controller and an external discrete charge pump to step up the input voltage. This circuit can service low loads and is effic...

  • Dual Battery Load Sharing with Automatic Switchover to a Wal

    2015-10-07 01:37:2563

    View Full Size Image View Original Datasheet The LTC4415 contains two monolithic PowerPath ideal diodes, each capable of supplying up to 4A with typica...

  • Touch Switch I

    2015-10-07 00:38:1767

    This switch reacts to the touch of a finger to turn lights and/or appliances on or off. The device uses the human body as an antenna to pick up 60-Hz h...

Maybe you like