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Search results: 2,270   Output: 101-110
  1. Yongping Xia EDN An idle telephone line tempts designers to use its 48 V potential as a power source. However, Part 68 of the US Federal Communications Commission's telecommunications regulations states that any device that connects to the phone ...
    02-08-2016
  2. Anthony Smith EDN Low-current, momentary action pushbutton switches, such as PCB-mount 'tactile' types, are cheap, and available in an abundance of different styles. Latching types, on the other hand, are often larger, more expensive, and available ...
    28-07-2016
  3. Shyam Sunder Tiwari Electronic Design Ambient light is increasingly being used as a source of energy. To help designers of such systems, this circuit accurately measures ambient light intensity over four decades of measurement. The design is highly ...
    25-07-2016
  4. Chapin Wong, Maxim Integrated Application Note 5978 Certain applications require the use of a negative voltage reference, which is usually not readily available. A common way to generate a negative voltage has been to use an operational amplifier ...
    Circuits » Supply · Power » Maxim » MAX6010, MAX9820, MAX5491
    13-07-2016
  5. Troy Murphy EDN Thanks to its property of applying an equal amount of delay to all frequencies below its cutoff frequency, the Bessel linear-phase filter sees service in audio applications in which it's necessary to remove out-of-band noise without ...
    07-07-2016
  6. Victor Khasiev, Linear Technology Design Note 1033 Introduction Generating a high voltage from a much lower voltage presents a number of challenges for the classical single stage boost topology. For instance, the maximum duty cycle limitation of a ...
    07-07-2016
  7. Bjoy Santos EDN Regardless of its color, an LED's light output varies as a function of forward current and ambient temperature. As Figure 1 shows, an LED's light output can vary by as much as 150% over its operating-current range. In response, a ...
    Circuits » Light · Power » Intersil » ISL29000, EL7630
    28-06-2016
  8. David Ng, Linear Technology Design Note 445 Introduction Once relegated to the hinterlands of low cost indicator lights, the LED is again in the spotlight of the lighting world. LED lighting is now ubiquitous, from car headlights to USB-powered ...
    28-06-2016
  9. Jeff Tregre EDN Shortly after installation, the simple water-leak-detector circuit in this Design Idea saved the day and hundreds of dollars. The average life expectancy of a hot-water heater is about 10 years. It’s not a question of whether ...
    23-06-2016
  10. Moshe Gerstanhaber and Chau Tran, Analog Devices EDN Many modern A/D converters offer only a 5 V input range, and using these converters with a 5 V or larger input signal gives the designer a problem: how to discard half of a good analog signal ...
    23-06-2016
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