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  2. 555 timer IC - Wikipedia

    en.wikipedia.org/wiki/555_timer_IC

    The 555 timer IC is an integrated circuit used in a variety of timer, delay, pulse generation, and oscillator applications. It is one of the most popular timing ICs due to its flexibility and price. It is one of the most popular timing ICs due to its flexibility and price.

  3. Duty cycle - Wikipedia

    en.wikipedia.org/wiki/Duty_cycle

    In electronic music, music synthesizers vary the duty cycle of their audio-frequency oscillators to obtain a subtle effect on the tone colors. This technique is known as pulse-width modulation. In the printer / copier industry, the duty cycle specification refers to the rated throughput (that is, printed pages) of a device per month.

  4. Instantaneous phase and frequency - Wikipedia

    en.wikipedia.org/wiki/Instantaneous_phase_and...

    Instantaneous phase and frequency are important concepts in signal processing that occur in the context of the representation and analysis of time-varying functions. [1] The instantaneous phase (also known as local phase or simply phase ) of a complex-valued function s ( t ), is the real-valued function:

  5. File:555 Astable Diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:555_Astable_Diagram.svg

    Circuit diagram of a standard 555 Astable circuit. The design equations can be found here. Date: ... Timer 555; Usage on pt.wikipedia.org CI 555; Usage on uk ...

  6. File:PWM-using-555-Timer-Circuit-Diagram.webp - Wikipedia

    en.wikipedia.org/wiki/File:PWM-using-555-Timer...

    What links here; Upload file; Special pages; Printable version; Page information

  7. Pearson–Anson effect - Wikipedia

    en.wikipedia.org/wiki/Pearson–Anson_effect

    This formula is only valid for oscillation frequencies up to about 200 Hz; [7] above this various time delays cause the actual frequency to be lower than this. [8] Due to the time required to ionize and deionize the gas, neon lamps are slow switching devices, and the neon lamp oscillator is limited to a top frequency of about 20 kHz.

  8. Prescaler - Wikipedia

    en.wikipedia.org/wiki/Prescaler

    A prescaler is an electronic counting circuit used to reduce a high frequency electrical signal to a lower frequency by integer division.The prescaler takes the basic timer clock frequency (which may be the CPU clock frequency or may be some higher or lower frequency) and divides it by some value before feeding it to the timer, according to how the prescaler register(s) are configured.

  9. Frequency - Wikipedia

    en.wikipedia.org/wiki/Frequency

    A pendulum with a period of 2.8 s and a frequency of 0.36 Hz. For cyclical phenomena such as oscillations, waves, or for examples of simple harmonic motion, the term frequency is defined as the number of cycles or repetitions per unit of time.