Articles

Search results: 666 Output: 1-10
  1. The most common method for interfacing multiple switches multiplexing allows for the connection of (N/2) 2 switches with N microcontroller I/O lines. The method described below, which has its roots in an LED interface technique commonly known as ...
    20-06-2022
  2. Supply Texas Instruments LM350A LM431 LM385-1.2
    Many electronics circuits begin operation at voltages below 1.25 V. But popular adjustable regulators such as the LM317 , LM350 , and LM338 can provide output voltages only above 1.25 V, and the L200 minimum is higher at 2.85 V. Fixed-output ...
    07-06-2022
  3. By adding just two MCU I/O pins, a standard LED can also perform as a light-detecting photodiode. Sometimes people forget that light-emitting diodes can also detect light quite well. They're usable in a wide range of applications as ...
    02-06-2022
  4. Supply Maxim MAX4210
    How do you deliver constant power when the load impedance isn't constant? That problem arises, for example, in trying to maintain a warm LCD display on an outdoor gas pump in cold climates. As the heating element changes temperature, its ...
    02-06-2022
  1. Audio Supply Texas Instruments LM5155 LM8261 TPA3221
    Audio amplifiers for high-power portable speakers such as trolley speakers usually operate with lithium-ion batteries, and these batteries can vary from a single cell to a few cells in series. Designers generally use boost converters to produce the ...
    23-05-2022
  2. Since its invention over a half-century ago by Hanz Camenzind at Signetics, the familiar 555 analog timer (in league with its updated pin-compatible CMOS descendants) has become an iconic design element incorporated into useful standardized ...
    19-05-2022
  3. A power supply that I was examining used an opto-coupler in its feedback path for control of its output voltage. This is a commonplace and well established design approach, but the feedback loop’s unconditional loop stability was not ...
    12-05-2022
  4. A switched-mode power supply (SMPS) employing peak current-mode control (PCMC) requires a ramp signal to slope-compensate the inner (current) control loop. Slope compensation stabilizes the current loop, which would otherwise exhibit subharmonic ...
    03-05-2022
  5. Using two unipolar dc supplies in an anti-series configuration is another approach for generating positive and negative voltage and one that doesn't suffer from power interruption. In 2012, I wrote two articles in Electronic Design that ...
    28-04-2022
  6. Ask a power converter designer what they want from a semiconductor switch and the answer might be something like: “Low on-resistance, high off-resistance, and the fastest possible transition between the two states”. The idea of course, ...
    22-04-2022