LED-driver circuits can be dimmed by applying a variable duty cycle (pulse-width modulation, or PWM) to the LED. PWM exploits LED behavior: At higher current levels, the LED’s light output is higher ...

Abstract: Optimal Pulse Width Modulation (OPWM) is an established technique to generate PWM waveforms with low base-band distortion. The technique requires fast PWM generator to minimize base-band ...

Abstract: A digital Class-D audio amplifier is presented in this paper. This amplifier uses a sixth-order PWM modulator to generate the driver signal of the output stage of the amplifier. The ...

A software-defined radio (SDR) terminal promotes programmable realizations of the physical layer functionalities. A lot of research work has been done in applying DSPs and FPGAs to implement the ...

Meylan, France – March 25, 2011 --The new PWM audio modulator of Dolphin Integration, sDACS95-SP.01-OL.LB-Titanium, presents numerous high added-value features for advanced fabrication processes: 65 ...

This file type includes high resolution graphics and schematics. You can build an analog calculator using a pulse-width modulator (PWM) to perform accurate four-quadrant multiplication and division.

If you ever thought of experimenting with pulse-width modulation, this circuit should get you started nicely. We’ve kept simplicity in mind and used a dual 555 timer, making the circuit a piece of ...

ESP8266 acts as an SPI master and sends simple command bytes (0x01 → increase, 0x02 → decrease) to an FPGA-based SPI slave. The FPGA converts the received value into a PWM duty cycle driving an LED — ...

The converter-modulator is a resonant power conditioning configuration that is optimized for a particular load impedance or parameter space. Although traction motor Insulated Gate Bipolar Transistors ...