Support/hardware demonstration
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The FPGA design can be found in the HEI [https://repos.hevs.ch/svn/eda/VHDL/labs/ELN_support SVN]. | The FPGA design can be found in the HEI [https://repos.hevs.ch/svn/eda/VHDL/labs/ELN_support SVN]. | ||
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+ | = Specification= | ||
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+ | To generate the PWM signal we have to compare the sinewave signal (tone) and a signal sawtooth signal whitch be generate with the counter. | ||
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+ | The block diagram is: | ||
+ | [[File:pwm modulator.svg|center|600px|pwm modulator]] | ||
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+ | With the block which has in entry (in put: PWM_out) and (output: C0, C1) we are going to get back the whole signal PWM_out. | ||
+ | |||
+ | The simulation is described in following figure: |
Revision as of 12:00, 5 December 2017
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System
The following system is used to show digital electronic parts to students.
The block diagram is:
The FPGA design can be found in the HEI SVN.
Specification
To generate the PWM signal we have to compare the sinewave signal (tone) and a signal sawtooth signal whitch be generate with the counter.
The block diagram is:
With the block which has in entry (in put: PWM_out) and (output: C0, C1) we are going to get back the whole signal PWM_out.
The simulation is described in following figure: