Circuits & Schematics Oscillators

Subsection: "Oscillators"
Search results: 79 Output: 1-10
  1. Sawtooth- or exponential-ramp relaxation oscillators are common and generally easy to build. However sometimes a cleaner waveform is desired, and generators of even-symmetric waveforms are a bit more difficult to design. Triangle wave generators ...
    15-11-2021
  2. The circuit in Figure 1 is based on a classic GIC (generalized impedance converter). The sine-wave-oscillator circuit has inherent amplitude stabilization and normally operates from dual power supplies. However, if you connect an additional ...
    09-11-2021
  3. For a variety of reasons, designers often discover that their creations need yet more power-supply voltages. For example, a system powered by 2.5 V power supplies suddenly needs a precision 1.4 V reference for a signal-level-shifting circuit and ...
    25-10-2021
  4. A random-bit-sequence generator is basic equipment for prototyping and testing any data-transmission system. You use such a generator when measuring BER (bit-error rate) and pattern-dependent effects in a transmission system. Such effects can ...
    13-10-2021
  1. A broadband source of white noise can be useful for measuring and testing communications equipment. The source in Figure 1 is simple and produces a large noise signal at its output terminals. The circuit comprises a zener diode and a few amplifying ...
    12-10-2021
  2. The circuit here is an oscillator with an unusual frequency divider that I designed when I was developing an RF system. I needed a stable and accurate 455 kHz digital signal generator that used as few components as possible. The signal generator ...
    14-09-2021
  3. Circuits Oscillators Analog Devices AD5231 AD5232 AD8510
    Digital potentiometers are versatile devices; you can use them in many filtering and waveform-generation applications. This Design Idea describes an oscillator in which setting the resistance of two digital potentiometers independently programs the ...
    02-06-2021
  4. Circuits Oscillators Nexperia 74HCU04 74AHCU04
    You sometimes need an inexpensive VCO that can produce evenly spaced three-phase outputs over a wide frequency range. You could use tracking all-phase filters with only one oscillator, but this technique is difficult to implement and offers limited ...
    02-06-2021
  5. If you use a function generator, you may occasionally require a sine-wave output at a higher frequency than the generator can provide. If your function generator also produces a triangle-wave output, you can use a frequency doubler to extend the ...
    26-05-2021
  6. The original bipolar 555 timer, the NE555 , is excellent for driving a power MOSFET’s gate. Newer CMOS versions such as the 7555, LMC555, and TLC555 use less power, but they have trouble sourcing enough current to drive a gate well and can ...
    22-02-2021