Support/hardware demonstration

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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.
 
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:  
 
The block diagram is:  
 
[[File:Pwm modulator.png|center|600px|pwm modulator]]
 
[[File:Pwm modulator.png|center|600px|pwm modulator]]
 
   
 
   
 
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.
 
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 output C0=1 when PWM_out=0 and the output C1=1 when PWM_out=1.
  
 
The test block is defined below:
 
The test block is defined below:
 
[[File:Test.png|center|1000px|Test]]
 
[[File:Test.png|center|1000px|Test]]

Revision as of 10:05, 12 January 2018

Contents

System

The following system is used to show digital electronic parts to students.

hardware demonstration system

The block diagram is:

block diagram


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:

pwm modulator

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 output C0=1 when PWM_out=0 and the output C1=1 when PWM_out=1.

The test block is defined below:

Test
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