What does PWM stand for?

Byline: shiv03 Atmel has announced industrial versions of its ATmega16M1, ATmega32M1, and ATmega64M1 automotive motor controllers, which combine pulse width modulation (PWM) with the CAN and LIN interfaces that are increasingly popular in factory automation.

It also offers standard ATX motherboard, 1 kilowatt 80PLUS power supply and clean cable management for easy component upgrades; large, quiet pulse width modulation (PWM) fans and support for the new Enthusiast System Architecture (ESA).

He describes their use in high-power semiconductor devices such as power MOSFETs, three-phase ioinverters, carrier-based pulse width modulation, vectorial pulse width modulation for basic three-phase inverters and practical aspects in building them, implementing pulse width modulation algorithms, implementing closed-loop current control, working with resonant three-phase converters (including those which are component-minimized), the AC/DC grid interface based on three-phase voltage source converters, and parallel and interleaved power converters.

Boulder, Colorado-based AudioLogic's IP includes all-digital pulse width modulation technology and what it claims is the world's lowest power digital signal processor.

MAL Effekt also developed a custom DMX512 Power module that was used drive the LEDs, generate the desired colors, and control both color point and brightness via pulse width modulation (PWM).

Orchid employs Pulse Width Modulation (PWM) techniques in a torque and speed controlled 1/3 horsepower H-bridge Power FET drive electronics package.

Among the topics of individual papers were: adaptive pulse width modulation, identification of a tethered satellite using a Kalman Filter, effects of cross correlated covariance on spacecraft collision probability, and examination of NORAD TLE accuracy using the Iridium Constellation.

By controlling the IGBT power devices using SVM instead of the more usual carrier based pulse width modulation (PWM), users can run servo motors at typically 15% higher speeds with reduced switching losses and harmonics, which can translate directly into greater machine throughput.