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  1. Fuses are an essential part of many system designs, and we’ve come to depend on them since the earliest days of electricity. The basic concept of using a fusible link which self-heats due to current flow and then opens to cut off current flow ...
    24-02-2021
  2. Last October, after seven months of silence due to a major upgrade of the 70 m wide radio antenna located in Canberra, NASA sent a set of commands to a 43 year-old spacecraft, Voyager 2. Billions of miles from earth since its launch in 1977, ...
    16-02-2021
  3. For transducers, such as strain gauges or thermistors, you must accurately and inexpensively measure resistance using circuitry built with imperfect components and in which gain and offset errors can significantly limit the accuracy of ohmic ...
    25-01-2021
  4. Designing astable circuits using the industry-standard 555 timer is a straightforward process when duty cycles are 50% or greater. However, you must overcome the many pitfalls of low-duty-cycle circuits to arrive at a desired result. Using only ...
    20-01-2021
  1. There was an interesting article in the January 1961 issue of Popular Electronics, “Sweet Sixteen” by Jim Kyle. It was followed up in April 1961 with a second article entitled “Sweeter With A Tweeter.” You can find some ...
    19-01-2021
  2. Supply Analog Devices ADP1071-1 ADP1074
    Galvanically isolated power supplies are used in numerous applications for different reasons. In some circuits, galvanic isolation is necessary due to safety considerations. In other circuits, functional isolation is used to block any interference ...
    15-01-2021
  3. Using measurements of anomalies in the Earth’s magnetic field and machine learning to extract data from raw signals, then matching them to accurate magnetic-anomaly maps, it may possible to navigate aircraft with reasonable accuracy ...
    23-12-2020
  4. What you’ll learn What is the Raspberry Pi 400? What the Raspberry Pi 400 is not. Why you may want one. The Raspberry Pi 400 is a Raspberry Pi 4 inside a keyboard (Fig. 1). That’s it. We’re done. Figure 1. The Raspberry Pi 400 ...
    18-12-2020
  5. Decibels are commonly used in electronic systems that include RF, audio, and more recently, signal integrity. While many engineers already think in decibels, if you mostly work in the time domain, you may not think the same way. Because much of my ...
    14-12-2020
  6. Certain designs need a programmable-gain amplifier with a wide gain range and high accuracy and common-mode rejection. Usually, it's wise to exploit a programmable-gain instrumentation amplifier, such as an AD625 . Unfortunately, the gain range ...
    07-12-2020
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