Articles - Oscillators

Subsection: "Oscillators"
Search results: 23 Output: 1-10
  1. Nick Cornford
    In the first part of this DI ( Ref. 1 ), we saw how to gate an oscillator to generate well-behaved impulses. Now we find out how to extend that idea to producing well-behaved step functions, or nicely smoothed square waves. The ideal here is the ...
    Nov 24, 2024
  2. Michael Wyatt
    Often, one needs a simple low voltage sinusoidal oscillator with good amplitude and frequency stability and low harmonic distortion; here, the Peltz oscillator becomes a viable candidate. Please see the Peltz oscillator Analog Devices Wiki page ...
    Nov 24, 2024
  1. Nick Cornford
    The principle behind testing the impulse response of circuits is simple: hit them with a sharp pulse and see what happens. As usual, Wikipedia has an article detailing the process ( Ref. 1 ). This notes that the ideal pulse a unit impulse, or Dirac ...
    Nov 18, 2024
  2. Peter Demchenko
    The circuit in Figure 1 seems utterly simple but demonstrates unusual behavior. It produces an almost square wave of odd-integer quartz harmonics, including its main frequency. Figure 1. A simple circuit that produces an almost square wave ...
    Oct 8, 2024
  3. Dieter Verhulst Xin Yin
    Oscillators ON Semiconductor MC100EP16 NCP565-D
    To test a gigabit-speed data-recovery chip, you need a clock with a controllable duty cycle. Because most pattern and clock generators have a fixed duty-cycle output of 50%, the design may require a small circuit to distort the duty cycle. The ...
    Nov 8, 2023
  4. Sunil Kedia
    Many engineers and designers are unaware of the advantages of using brushed DC motors as generators. Design engineers know that both brush DC and brushless DC (BLDC) motors can operate as generators, but many tend to avoid running brushed DC motors ...
    Jun 13, 2023
  5. Jim Williams
    Oscillators Analog Devices LT1004 LT1006 LT1010 LT1122 LTC201A
    A spectrally pure sine wave oscillator is required for data converter; filter and audio testing. Figure 1 provides a stable frequency output with extremely low distortion. This quartz stabilized 4 kHz oscillator has less than 9 ppm (0.0009%) ...
    Mar 9, 2023
  6. Thomas Brand
    Oscillators Analog Devices AD5142 AD5142A AD5204 ADA4610-1
    Digital potentiometers (digiPOTs) are versatile and can be used in a wide variety of applications, for example, for filtering or generating ac signals. However, sometimes the frequency must be able to be varied and adapted to the desired ...
    Oct 21, 2022
  7. Stephen Woodward
    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 ...
    May 19, 2022
  8. Stephen Woodward
    More than a half-century old, the ubiquitous and mind-bogglingly useful 555 analog timer has become a perennial object for both kudus and criticism. Most of the former and some of the latter is justified, but sometimes a supposed shortcoming will ...
    Mar 25, 2022