how to create variable PWM in simulink
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I working in type of motors with PWM and i want to control the duty of pwm in my modeling in simulink but i dont know what is the suitable function in the simulink to give me variable pwm ???
i hope help me soon
many thanks
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cr
2013년 10월 11일
편집: cr
2013년 10월 14일
There is a built-in pwm block that varies dutycycle according to an input sine wave. See 2 and 3 level pwm generator blocks. If you need to vary dutycycle depending upon value of some signal, then the only way I can think of is by using s-functions to change the duty cycle at every step. There is a demo file in s-function demos. I have also described a simpler beginner-friendly version here: http://matlabtraining.com/blog/2013/10/how-to-write-s-functions/
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