PDM — pulse density modulation — is similar to PWM and, ... There are several ways [Chris] could produce the output he wanted. PWM was one choice, and some example code uses a timer to do PDM.

Figure 1: Typical output noise spectrum of the converter in a PDM-output microphone. ... (Pulse Code Modulation) audio signal with a multitude of levels. It used to be that the 65536 levels afforded ...

Inverters with pulse width modulation are used for connecting DC and AC networks, e.g. in uninterrupted power supply systems, AC electromotor drives, for powering induction furnaces, in audio ...

One widely used approach is pulse-width modulation (PWM), which controls the power switch output power by varying its ON and OFF times. The ratio of ON time to the switching period time is the ...

The delta-sigma pulse magnitude modulated multilevel inverter-based wireless power transfer systems are suitable for high-power applications to realize ZVS and continuous output, but the resolution is ...

1. Analog signal and equivalent pulse-width modulation. (Click this image to view a larger, more detailed version) To convert from analog to digital, the analog signal first is sampled at a carrier ...

The "pulse code" in PCM comes from the telephone company's method of sending a pulse or no pulse down the line. Mu-Law signals typically ride on a single 64 Kbps DS0 channel in a T1 line.

Bonnie Baker, senior applications engineer at Texas Instruments and regular EDN columnist, demonstrates a simple way to add DAC functionality to a microcontroller-based system using only an op amp and ...