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Search results: 2,254   Output: 31-40
  1. Sajjad Haidar EDN A simple blocking oscillator circuit can be used to step up voltage using properties of coil inductance ( V = L di/dt ). Such a circuit is shown in Figure 1, which is more commonly called a Joule thief. Figure 1. Basic Joule Thief ...
    19-01-2017
  2. Francois AUGER Philippe Fretaud EDN Many previous Design Ideas [1, 2] have shown how to use the Charlieplexing technique [3] to drive as many LEDs as possible with a minimum number of I/O lines. This Design Idea shows how you can drive three LEDs ...
    19-01-2017
  3. Jim Williams EDN The VFC (voltage-to-frequency-converter) circuit in Figure 1 achieves a wider dynamic range and a higher full-scale output frequency 100 MHz with 10% overrange to 110 MHz by a factor of 10 over any commercially available converter. ...
    Circuits » Measurement » Linear Technology » LT1460, LTC1150, LTC6943
    19-01-2017
  4. Andreas Freiherr VishayOpto Creating a “Magic” Cat Doorbell with the TSSP4P38 Proximity Sensor Leonie and her family live in a building with seven other families. Like many cats, Leonie loves to explore her surroundings, and after ...
    Circuits » Automation · Microcontrollers usage » Vishay » TSSP4P38, IRLD024, VSLB3940
    18-01-2017
  5. Dev Gualtieri Electronic Design A simple assembly of Teflon and Kapton forms a switch that uses the generation of static electricity (triboelectricity) by basic motion to generate a voltage spike, which then triggers a circuit. Triboelectricity, a ...
    17-01-2017
  6. SK Kaul and IK Kaul EDN The absence of a fast one-shot multivibrator in the entire TTL family, as well as the low-voltage swing and unwieldy supply requirements of ECL, drove us to exploit the fast transition times and low propagation delays of ...
    Circuits » Light » NXP » ICM7555
    15-01-2017
  7. Stephen Woodward EDN Since the dawn of time or at least since the dawn of precision electronics a major headache for analog designers has been CMV (common-mode-voltage)-induced errors, also known as the dreaded ground loop. Although almost mystical ...
    Circuits » Analogue Design » Maxim » MAX14752
    11-01-2017
  8. Jim Williams EDN You use a JFET's self-biasing characteristics to build a dc/dc converter that operates from power sources such as solar cells, thermopiles, and single-stage fuel cells, all of which deliver less than 600 mV and sometimes as ...
    11-01-2017
  9. Raymond Zheng, Linear Technology EDN The demand for negative-voltage power supplies is increasing with the popularity of applications for portable devices. It can be expensive and relatively complicated to generate a negative supply from a positive ...
    Circuits » Supply · Power » Linear Technology » LTC1983ES6-5
    06-01-2017
  10. Steven Galecki Electronic Design This circuit automatically attenuates a high voltage by known factors so that it matches the ADC input range for best converter resolution. It's a common challenge to measure voltages that exceed the operating ...
    06-01-2017
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