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paper_bits:pb103_sinevco [2016/10/24 11:52]
admin [Manual]
paper_bits:pb103_sinevco [2020/06/11 22:13] (current)
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 ==== Schematic ==== ==== Schematic ====
-{{:​paper_bits:​pb103_sinevco_schematic.jpg?300|}}\\+{{:​paper_bits:​pb103_sinevco_schematic2.jpg?400|}}\\
  
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 ==== Paper-PCB ==== ==== Paper-PCB ====
-{{:​paper_bits:​pb103_sine_vco_11.jpg?400|}}\\ +{{:​paper_bits:​pb103_sine_vco_36.jpg?600|}} 
-{{ :​paper_bits:​pb103_sine_vco_11.ai.zip |}}\\+{{ :​paper_bits:​pb103_sine_vco_36.ai.zip |}}\\
  
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 ==== Parts ==== ==== Parts ====
   * **Resistors:​**   * **Resistors:​**
-  * 1x 470 Ohm +  * 4x 1 kOhm 
-  * 2x 1 kOhm +  * 2x 4.7 kOhm 
-  * 6x 10 kOhm+  * 1x 9.1 kOhm 
 +  * 2x 10 kOhm
   * 6x 47 kOhm   * 6x 47 kOhm
   * 3x 100 kOhm   * 3x 100 kOhm
-  * 1x 9,1 kOhm 
-  * 1x 4,7 kOhm 
   * **Capacitors:​**   * **Capacitors:​**
-  * 2x 100 nF (foil)+  * 1x 100 nF (foil)
   * 1x 10 nF (foil)   * 1x 10 nF (foil)
 +  * **Electrolytic Capacitors:​**
 +  * 2x 10µF
   * **Diodes:**   * **Diodes:**
-  * 1x 1N4148 +  * 2x 1N4148 
-  * **Op-Amps ​**: +  * **Semiconducors:​** 
-  * LM 358  +  * 1x BC547 
-  * LM 324+  * 2x LM 358
   * **Mechanical:​**   * **Mechanical:​**
-  * 1x 14 pin IC socket  +  * 2x 8 pin IC socket 
-  * 1x pin IC socket +  * 1x pin strip 1x9 
-  * 1x Pin-Strip 1x15 +  * 2x pin header, female 90° 1x3, 1x2 
-  * 1x Right Angle Pin-Strip / Female-Socket Header 1x5 +  * 2x pin header, male 90° 1x31x2
-  * 1x Right Angle Pin-Strip 0,1 /Male 1x5+
   * 3x jumpers   * 3x jumpers
   * **Potentiometers:​**   * **Potentiometers:​**
-  * 2x 100k Trim Potentiometer +  * 2x 100k trim potentiometer 
-  * 1x 10k Trim Potentiometer+  * 1x 10k trim potentiometer
   * 1x 100k   * 1x 100k
  
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 **Step 4 Wave Shaping:​**\\ **Step 4 Wave Shaping:​**\\
-Connect your speakers to pin connector Nr. 4, too. (use a crocodile clip). +Connect your speakers to pin connector Nr. 1, too. (use a crocodile clip). 
-Now start trimming the potentiometer marked as Nr. while checking the oscilloscope and comparing the second wave with the first. ​+Now start trimming the potentiometer marked as Nr. while checking the oscilloscope and comparing the second wave with the first. ​
 Stop when you see and hear a perfect rounded sinus wave. Stop when you see and hear a perfect rounded sinus wave.
 Ok, now we have our sinus wave but as you might notice the signal is week, it's time to amplify it. Ok, now we have our sinus wave but as you might notice the signal is week, it's time to amplify it.
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 If you don't hear or see anything it means that the signal might have been lost, but don't worry that's what we will do next.\\ If you don't hear or see anything it means that the signal might have been lost, but don't worry that's what we will do next.\\
  
-Before you start trimming the other two trim potentiometers, it is important to know that you want to get you're wave as much amplified as possible without getting to the saturation level of your op-amp.+Before you start trimming the trim potentiometer, it is important to know that you want to get you're wave as much amplified as possible without getting to the saturation level of your op-amp.
 When that happens the sound gets distorted and you will see on you're oscilloscope that your wave is reaching a critical level (it's getting flat). When that happens the sound gets distorted and you will see on you're oscilloscope that your wave is reaching a critical level (it's getting flat).
 Another thing to know is that you're wave has a peak to peak range that is limited by the op-amps capacities and changes depending on the frequency. You want to get the best out of it (the highest possible voltage without reaching the saturation) and that's why you have to check the wave over all frequencies. In the lower ones for instance the waves amplitude is higher and that's the best for tuning you're wave because here the wave will tend to get out of range (oversaturated) much easier than in higher frequencies.\\ Another thing to know is that you're wave has a peak to peak range that is limited by the op-amps capacities and changes depending on the frequency. You want to get the best out of it (the highest possible voltage without reaching the saturation) and that's why you have to check the wave over all frequencies. In the lower ones for instance the waves amplitude is higher and that's the best for tuning you're wave because here the wave will tend to get out of range (oversaturated) much easier than in higher frequencies.\\
  
-Now you can start trimming the two trim potentiometers. The one marked as Nr. 2 controls the level of the wave. The other marked as Nr. 3 controls the amplification of the wave. You will trim them simultaneously ​until you're wave will reach a similar peak to peak range as the triangle wave. +Now you can start trimming the trim potentiometer. The one marked as Nr. 3 controls the amplification of the wave. You will trim it until you're wave will reach a similar peak to peak range as the triangle wave.\\ 
-Once your sine wave is amplified you are ready to go, plug and play.+ 
 +**Step 6 Offset:​**\\ 
 +The trim potentiometer Nr 4 is for adjusting the offset of the frequents control. To avoid popping one wants to have at the lowerst input still a nice sine wave.\\ 
 + 
 +Once your sine wave is shaped, ​amplified ​and has a nice offset ​you are ready to go, plug and play.
  
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 ~~socialite:​icon facebook twitter googleplus reddit tumblr~~ ~~socialite:​icon facebook twitter googleplus reddit tumblr~~
  
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-~~DISCUSSION~~