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  • Relay Switch Activated by Tone and Signal

    2015-09-02 02:40:2364

    Figure 1 The essence of the circuit is for the input of tone and signal to provide an activation for the relay switch. Relay – an electrically operat...

  • Smart Foot Switch(74LS76 )

    2015-09-02 00:05:5367

    This article briefly describes the Smart Foot Switch (74LS76). This principle is easy to understand, but also very practical. Depth understanding of ci...

  • Infrared switch operated by remote

    2015-09-01 22:44:2567

    SFH505A made by Siemens combine infrared diode receiver, amplifier, demodulator and a filter band pass for minimizing interferences. This circuit work ...

  • Cold activated switch (1N4002)

    2015-09-01 19:09:1667

    This article describes the Cold activated switch (1N4002). The content is very simple, very helpful. Diagram showing the principle is as follows. Compo...

  • IN4148 Silicon Epitaxial Planar Switching DIODE Application

    2015-09-01 15:52:0983

    IN4148 is a silicon epitaxial planar switching diode. The reverse voltage is 75V. IN4148 Features (1) Small glass structure ensures high reliability (2...

  • Cmos touch switch

    2015-09-01 14:10:2769

    This touch switch does not rely on mains hum for switching-It-can be used with battery powered circuits. Schmitt trigger IC1 forms a 100 kHz oscillator...

  • Dealing with switch bounce problem

    2015-09-01 12:08:1268

    Normally any embedded system has a relations with real word. Simplest and most common way is using buttons. This is how application interact with human...

  • Wireless On-Off Switch

    2015-09-01 08:23:3367

    Small and simple circuit, Suitable for home appliances Normally home appliances are controlled by means of switches, sensors, etc. However, physical co...

  • Remote Two Way Ac Switch Hookup Circuit

    2015-09-01 04:17:2361

    This switching arrangement is the type of arrangement used in both domestic and industrial environments to allow a light or other ac-operated device to...

  • Separate ON-OFF Touch Switch(BC557)

    2015-09-01 01:58:4591

    This article describes the Separate ON-OFF Touch Switch (BC557). The principle is very simple, very practical. The circuit components can help you unde...

  • Automatic Light Switch with PhotoTransistor Circuit

    2015-03-02 15:54:43107

    This is an automatic light switch circuit that turns ON a light bulb in absence of light. The IC 4060 works as an oscillator and generates a signal tha...

  • Automatic Light Switch with PhotoTransistor

    2014-12-03 09:31:5880

    This is an automatic light switch circuit that turns ON a light bulb in absence of light. The IC 4060 works as an oscillator and generates a signal tha...

  • TRANSISTOR_BRIDGE_SWITCHES_MICROVOLT_SIGNALS

    2014-11-13 12:31:44145

    Circuit approaches infinite impedance during off condition by lowering emitter-to-collector conductance gap to zero. Conventional reset flip-flop contr...

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