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Search results: 358   Output: 81-90
  1. Ali Asgher Mansoor Habiby and Abdus Sami Abdul Qayyum, Sir Syed University, Karachi, Pakistan EDN When you go hiking or mountain biking, or simply take a long walk around the neighborhood, you might wonder about the distance you covered or specific ...
    24-04-2013
  2. Raju Baddi EDN Most PN-junction diodes can be used as photodiodes. While not optimized for this application, they do work. When the diode is reverse biased, it will produce a small photovoltaic output as the light level is increased. LEDs are ...
    16-04-2013
  3. Vishwas Vaidya Thermocouples and their leads often have to detect open-circuit or short-circuit faults. However, it is very difficult to distinguish a valid millivolt temperature signal from an open/short-circuited thermocouple, which generates a ...
    14-03-2013
  4. John Fattaruso, Dallas, TX EDN Measure the pinch-off voltage V P and zero-bias drain current I DSS to select matched pairs of JFETs When working with discrete JFETs, designers may need to accommodate a large variation in device parameters for a ...
    10-03-2013
  5. Raju Baddi, India EDN Bipolar junction transistors transfer a current from a lower-resistance emitter to a higher-resistance collector. You can use this property to measure inductance Bipolar junction transistors transfer a current from a ...
    24-02-2013
  6. Create the mathematical inverse of an analog voltage by converting it to frequency and measuring the period. Jordan Dimitrov, Toronto, ON, Canada EDN A popular series of inexpensive distance sensors integrates an infrared emitting diode, a linear ...
    10-02-2013
  7. This module integrates the sensor MMA7455L (produced by Freescale ), able to detect the movement on three axes, and then in every direction. The chip offers the possibility to select three different sensitivity ( 2g, 4g, 8g) and makes available, on ...
    28-01-2013
  8. This project is about building a microcontroller-based digital room thermometer plus hygrometer that displays temperature and relative humidity on 4 large (1 inch) seven segment LED displays which adjust their brightness level according to the ...
    18-01-2013
  9. Igor Lovrić Few months ago, I got request to find some kind of solution to measure G-Forces in moving car. I found a lot of commercial products on net, but in my country it is little bit difficult to buy them, so I decided to make my own ...
    17-01-2013
  10. Part 1 - Theory and Schematic Operation of the board The operation of the board is very simple. After powering the board from a 3-5.5 V supply, the Enable (EN) pin must be pulled high to activate the IR sensor. Next, place the tip of your ...
    24-12-2012
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