PWM

[ˌpiː dʌbəljuː ˈɛm]
noun
modulação por largura de pulso
1. Pulse Width Modulation - a technique for controlling power delivery by varying the width of pulses in a digital signal
The PWM controller adjusts the brightness of the LED by changing the duty cycle.
O controlador PWM ajusta o brilho do LED alterando o ciclo de trabalho.
2. A method used in electronics and power supplies to regulate voltage or current efficiently
Modern power supplies use PWM technology to improve efficiency and reduce heat generation.
As fontes de alimentação modernas usam tecnologia PWM para melhorar a eficiência e reduzir a geração de calor.
PWM is a specialized technical term primarily used in electronics, electrical engineering, and computer science fields in both Brazil and Portugal. It is typically retained as an English acronym (PWM) even in Portuguese technical documentation and academic contexts, though the full expansion 'modulação por largura de pulso' is used when clarity is needed. Common in robotics, LED control, motor speed regulation, and power supply design discussions.
Synonyms / Sinônimos
pulse width modulationduty cycle modulationswitching regulation

Regional Variations

General Brazilian
modulação por largura de pulso
Standard technical term used in engineering and electronics contexts
Portugal
modulação por largura de impulso
Alternative Portuguese terminology using 'impulso' instead of 'pulso'
Technical Communities
PWM (acronym commonly retained)
Often used as acronym in both English and Portuguese technical documentation

Related Words

duty cyclefrequencyamplitude modulationswitching power supplyinvertermicrocontroller
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