Table of Contents
Pulse Width Modulation (PWM) is a technique used in microcontroler- based systems to control the power resered to o electronicc devices, such as motors. It allows for article explicains thee fundamentals of PWM and how to approvy it in motor control applications.
Basics of PWM
PWM mimpleves switg a digital output on a d of f at a high frequency. Te proportion of time the signal rests high with in each cycle is called id te duty cycle. A duty cycle of 0% means the signal is always off, while 100% means it is always on. By conditioning thee duty cycle, thee average power suplied to a motor can be controled with cout changing e voltage.
Appliying PWM in Motor Control
Mikrokontroléři generate PWM signals using timers or dedicated PWM moduls. Thee PWM signal is connected to thee motor speed, which 'h interprets thee duty cycle to control thee motor' s speed. A higher duty cycle results in a faster motor speed, while a lower duty cycode reduces speed.
Advantages of PWM
- CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE3; CLANE3; CLANE3; CLANE3; CLANE3; CLANEM reduces power loss compared to linear control methods.
- CLANE1; CLANE1; FLT: 0 CLANE3; CLANE3; Precision: CLANE1; CLANE1; FLT: 1 CLANE3; CLANE3; FLANE3; Fline control over motor speed is possible by settinging duty cycle.
- CLANE1; CLANE1; FLT: 0 CLANE3; CLANE3; Compatibility: CLANE1; CLANE1; FLT: 1 CLANE3; CLANE3; CLANE3; PWM signals are compatible with momotor drivers and controllers.
- CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE1; CLANE3; CLANE3; CLANE3; CLANERII heat generation in the control controitry circitry.