Pulse-width modulation (PWM), also known as pulse-duration modulation (PDM) or pulse-length modulation (PLM), is any method of representing a signal as...
29 KB (4,017 words) - 20:51, 8 June 2025
Pulse-position modulation (PPM) is a form of signal modulation in which M message bits are encoded by transmitting a single pulse in one of 2 M {\displaystyle...
9 KB (1,244 words) - 17:39, 30 June 2025
Random pulse-width modulation (RPWM) is a modulation technique introduced for mitigating electromagnetic interference (EMI) of power converters by spreading...
13 KB (1,645 words) - 14:17, 28 May 2024
Pulse-amplitude modulation (PAM) is a form of signal modulation in which the message information is encoded in the amplitude of a pulse train interrupting...
10 KB (1,051 words) - 05:53, 6 August 2025
Pulse-frequency modulation (PFM) is a modulation method for representing an analog signal using only two levels (1 and 0). It is analogous to pulse-width...
5 KB (554 words) - 22:22, 6 March 2025
The pulse width is a measure of the elapsed time between the leading and trailing edges of a single pulse of energy. The measure is typically used with...
3 KB (347 words) - 02:31, 19 May 2025
Space vector modulation (SVM) is an algorithm for the control of pulse-width modulation (PWM), invented by Gerhard Pfaff, Alois Weschta, and Albert Wick...
7 KB (554 words) - 17:35, 19 July 2025
Pulse-density modulation (PDM) is a form of modulation used to represent an analog signal with a binary signal. In a PDM signal, specific amplitude values...
11 KB (1,564 words) - 20:06, 31 July 2025
methods Pulse-amplitude modulation (PAM) Pulse-width modulation (PWM) and pulse-depth modulation (PDM) Pulse-frequency modulation (PFM) Pulse-position...
28 KB (3,371 words) - 18:22, 31 July 2025
who wrote software to modulate the duration of and between pulses (pulse-width modulation or "PWM", via a process now often referred to as "bit banging")...
8 KB (1,130 words) - 05:15, 15 May 2024
the duty cycle. A pulse wave is used as a basis for other waveforms that modulate an aspect of the pulse wave. In pulse-width modulation (PWM) information...
6 KB (713 words) - 14:46, 17 May 2025
Pulse-code modulation (PCM) is a method used to digitally represent analog signals. It is the standard form of digital audio in computers, compact discs...
35 KB (4,106 words) - 17:23, 27 July 2025
PC speaker (section Pulse-width modulation)
systems or games, could play pulse-code modulation (PCM) sound through the PC speaker using special Pulse-width Modulation techniques explained later in...
14 KB (1,562 words) - 19:35, 28 July 2025
lamp flashers, pulse generation, pulse-width modulation (PWM), logic clocks, tone generation, security alarms, pulse-position modulation, etc. Analog-to-digital...
58 KB (4,875 words) - 09:34, 24 May 2025
Servo control (section Pulse duration)
the servo a PWM (pulse-width modulation) signal, a series of repeating pulses of variable width where either the width of the pulse (most common modern...
6 KB (856 words) - 18:59, 26 April 2024
PWM rectifier (Pulse-width modulation rectifier) is an AC to DC power converter, that is implemented using forced commutated power electronic semiconductor...
2 KB (169 words) - 17:17, 15 June 2025
Class-D amplifier (section Signal modulation)
between the supply rails, using pulse-width modulation, pulse-density modulation, or related techniques to produce a pulse train output. A simple low-pass...
15 KB (2,080 words) - 05:53, 13 February 2025
This case is dubbed sinusoidal pulse-width modulation (SPWM).For this, the modulation index, or amplitude-modulation ratio, is defined as ma = vc/v∆...
62 KB (8,061 words) - 01:37, 31 July 2025
Computer fan control (section Pulse-width modulation)
waste heat that is produced will be roughly P = (Vin - Vout) Iout. Pulse-width modulation (PWM) is a common method of controlling computer fans. A PWM-capable...
18 KB (2,320 words) - 18:19, 27 June 2024
which can be ultimately encoded as pulse-code modulation (PCM). Both ADCs and DACs can employ delta-sigma modulation. A delta-sigma ADC (e.g. Figure 1...
59 KB (6,863 words) - 13:32, 25 May 2025
device is conducting may be adjusted so a pulse-width modulation output (or other frequency based modulation) can be obtained from the stage. Additional...
34 KB (5,003 words) - 02:16, 28 April 2025
onto a pulse train by varying parameters like amplitude (pulse-amplitude modulation - PAM), width (pulse-width modulation - PWM), position (pulse-position...
17 KB (1,946 words) - 02:44, 26 July 2025
techniques namely: Pulse-width modulation Frequency modulation Variable frequency, variable pulse width CLC control In pulse-width modulation the switches are...
11 KB (1,545 words) - 13:08, 26 February 2025
Duty cycle (redirect from Pulse ratio)
seconds (or 1/100 of the time), its duty cycle is 1/100, or 1%. Pulse-width modulation (PWM) is used in a variety of electronic situations, such as power...
8 KB (989 words) - 04:59, 22 June 2025
The Vienna Rectifier is a three-phase AC pulse-width modulation rectifier, invented in 1993 by Johann W. Kolar at TU Wien, a public research university...
9 KB (1,103 words) - 11:50, 17 April 2025
Halftone (section Modulation)
only one color of ink, in dots of differing size (pulse-width modulation) or spacing (frequency modulation) or both. This reproduction relies on a basic optical...
26 KB (3,180 words) - 17:13, 27 May 2025
oscillators are used: Pulse-width modulation is applied to both waveforms to create a more complex tone with vibrato: The pulse-width modulated sounds are...
8 KB (746 words) - 00:48, 23 July 2025
maintaining a constant frequency with a technique called pulse-width modulation (PWM). The generated gate pulses are given to each switch in accordance with the...
49 KB (6,508 words) - 13:14, 6 August 2025
WWVB (section Modulation format)
using the IRIG "H" format and modulated onto the carrier wave using pulse-width modulation and amplitude-shift keying at one bit per second. A single complete...
51 KB (5,616 words) - 09:03, 21 July 2025
differential pulse-code modulation (DPCM) where the difference between successive samples is encoded into n-bit data streams. In delta modulation, the transmitted...
18 KB (2,210 words) - 13:46, 23 May 2025