File:Pwm.png
Principle of the intersective pulse width modulation (PWM).
This plot was created with Gnuplot.
The list of points used to define the tics along the x axis has been generated by the following python code:
#!/usr/bin/python
#this file generates a list of points used as ticks
# to draw the grid in the gnuplot file pwm.plt
from scipy import *
freq= 0.05
n=20
for i in range(n):
def f(x):
return sin(freq*x*2*pi)-2*x+1+2*i
print i,",", optimize.fsolve(f,0), ",\"
}}
convert -density 300 pwm.eps pwm.png
The codes described above are given to the public domain.
Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
  
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
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| This licensing tag was added to this file as part of the GFDL licensing update. |
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
- You are free:
- to share – to copy, distribute and transmit the work
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- Under the following conditions:
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You may select the license of your choice.
derivative works
Derivative works of this file: Pwm.svg
