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  • Acceleration monitor (ADXL202)

    2015-01-20 13:55:3977

    This article describes the Acceleration monitor (ADXL202). The principle is very simple, very practical. The circuit components can help you understand...

  • Car battery monitor circuit diagram

    2015-01-20 12:20:03187

    How it works : When the battery voltage is 11.5V or less transistor Q1 is turned on and the LED D1 will be bright. When the battery voltage is between ...

  • Room Monitor

    2015-01-20 11:05:2278

    Room Monitor Description: This circuit allows audio monitoring of a remote location and so doubles as a room monitor or baby alarm. It can be run from ...

  • Flashing battery monitor

    2015-01-20 10:57:0584

    Description. Here is a simple circuit in which an LED will continue flashing as long as the voltage of the battery to be monitored is above the set lev...

  • Room Monitor Circuit

    2015-01-20 10:52:2171

    The circuit uses Ql to buffer the right-channel balance output while Q2 and Q3 form a VOX circuit. When the signal level from the microphone goes high,...

  • Dual over-under temperature monitor

    2015-01-20 10:00:3274

    This circuit is ideal for use as an over-under temperature monitor, where its dual output feature can be used to drive HIGH and LOW temperature-indicat...

  • Ignition monitor strobe

    2015-01-20 07:34:17211

    Trigger voltage from a direct connection to the cars ignition circuit of a spark plug. This circuit is a direct trigger timing light circuit from Figur...

  • 12 volt battery monitor CIRCUIT (2N3904)

    2015-01-20 06:24:43116

    This article describes a 12 volt battery monitor CIRCUIT (2N3904). The principle is very simple, very practical. The circuit components can help you un...

  • Outstanding Combination of Fan Regulator and Voltage Monitor

    2015-01-20 06:21:0578

    Ever thinking of combine the LM2941 Manual Fan Regulator and LM 3914 Voltage Monitor into a cool stuff? All you need to prepare are: LM2941 Manual Fan ...

  • System Monitor with Instrumentation-Grade Accuracy Used to M

    2015-01-20 05:59:2388

    View Full Size Image View Original LT Journal A psychrometer is a type of hygrometer, a device that measures relative humidity. It uses two thermometer...

  • VGA Monitor Splitter and Extender

    2015-01-20 05:57:16167

    Figure 1 The circuit was designed to provide distribution, extension and splitting of personal computer video output to two or more monitors. Super Vid...

  • Phone line based remote monitoring circuit

    2015-01-20 03:54:0297

    Remote monitoring enables various network monitors and console systems to exchange network-monitoring data. It provides network administrators with mor...

  • Monitor Life Extender

    2015-01-20 03:31:3966

    This circuit was designed to protect a computer monitor from overheating. It is recommended to attach this circuit to power users monitors! Most comput...

  • Calibration and monitoring sensors

    2015-01-20 02:16:2369

    Every sensor that measure real world things have real tolerances. There is no absolut accurate sensors as there are many factors that influence toleran...

  • Single-Cell Voltage Monitor

    2015-01-20 00:57:1680

    Monitoring battery voltage can be important in some application.? Some battery monitor will be simply a continuous LED lamp which is dimming according ...

  • Fuse Monitor(CIRCUIT)

    2015-01-20 00:41:0465

    This article describes the Fuse Monitor (CIRCUIT). The principle is very simple, very practical. The circuit components can help you understand better ...

  • Voltage-monitor

    2015-01-20 00:33:52109

    If the battery voltage exceeds about 11 V, current flows through R1, D1, and R2. The voltage produced as a result of current flow through R2 is suffici...

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