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analogcomputation:01_chuascircuit [2020/05/20 22:24]
admin 		analogcomputation:01_chuascircuit [2020/05/21 20:01]
admin [Build]
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 The circuit basically just needs 5 parts:\\ The circuit basically just needs 5 parts:\\
-{{:analogcomputer:1280px-chua_s_circuit_with_chua_diode.svg.png?400|}}\\ 
  
- //[[https://en.wikipedia.org/wiki/Chua%27s_circuit#/media/File:Chua's_circuit_with_Chua_diode.svg|Chua's Circuit]] by [[https://commons.wikimedia.org/w/index.php?title=User:Chetvorno&action=edit&redlink=1|Chetvorno]], [[https://creativecommons.org/publicdomain/zero/1.0/deed.en|CC0]]//+[[https://en.wikipedia.org/wiki/Chua%27s_circuit#/media/File:Chua's_circuit_with_Chua_diode.svg|{{:analogcomputer:1280px-chua_s_circuit_with_chua_diode.svg.png?400|}}]] 
 +//(graphic by [[https://commons.wikimedia.org/w/index.php?title=User:Chetvorno&action=edit&redlink=1|Chetvorno]], [[https://creativecommons.org/publicdomain/zero/1.0/deed.en|CC0]])//
  
 C1 = 10 nF\\ C1 = 10 nF\\
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 One can build a Chua's Circuit with the analog computer [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|Confetti]]. Two modules are needed: the Chua's Diode and a Gyrator. A Gyrator is more handy than an inductor so one can use it instead.\\ One can build a Chua's Circuit with the analog computer [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|Confetti]]. Two modules are needed: the Chua's Diode and a Gyrator. A Gyrator is more handy than an inductor so one can use it instead.\\
  
-[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti116_chua_diode|{{:analogcomputation:confetti116_chua_s_diode_ii_01.jpg?300|}}]]\\+=== Chua's Diode === 
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti116_chua_diode|{{:analogcomputation:confetti116_chua_s_diode_ii_01.jpg?300|}}]]
 [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti116_chua_diode|Chua's Diode]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti116_chua_diode|Chua's Diode]]\\
- 
-[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti101_gyrator|{{:analogcomputation:confetti101_gyrator_03_15mh.jpg?300|}}]]\\ 
-[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti101_gyrator|Confetti 101 Gyrator]]\\ 
  
 There are different ways to implenent a Chu's Diode, an alternative Chua's Diode one finds here:\\ There are different ways to implenent a Chu's Diode, an alternative Chua's Diode one finds here:\\
 [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti102_chua_diode#confetti102_chua_diode|Confetti 102 Chua's Diode (with real diodes)]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti102_chua_diode#confetti102_chua_diode|Confetti 102 Chua's Diode (with real diodes)]]\\
 +
 +=== Gyrator ===
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti101_gyrator|{{:analogcomputation:confetti101_gyrator_03_15mh.jpg?300|}}]]
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti101_gyrator|Confetti 101 Gyrator]]\\
 +
 +=== Power Supply ===
 +Additionally one needs a power supply. To get the positive and the negative 9V the easiest way is to use two 9V batteries…\\
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:9v_battery_supply|{{:analogcomputation:confett_9v_power_8583.jpg?300|}}]]
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:9v_battery_supply|9V Battery Supply]]
 +
 +=== ... and some Caps ===
  
 To build a Chua's Circuit out of these board one needs additionally a breadboard, some jumper wires, two 9V batteries and these parts:\\ To build a Chua's Circuit out of these board one needs additionally a breadboard, some jumper wires, two 9V batteries and these parts:\\
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 ==== Schematic ==== ==== Schematic ====
  
-{{:analogcomputation:chua_s_circuit_01.jpg?400|}}\\+{{:analogcomputation:chua_s_circuit_02.jpg?400|}}\\
  
 ---- ----
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 Additionally one needs some double sided tape to stick the paper printout on the [[https://en.wikipedia.org/wiki/Veroboard|Veroboaord]] and some copper wire for the PCB bridges and some breadboard jumper wires. Additionally one needs some double sided tape to stick the paper printout on the [[https://en.wikipedia.org/wiki/Veroboard|Veroboaord]] and some copper wire for the PCB bridges and some breadboard jumper wires.
 +
 +It is also possible to replace the [[http://www.ti.com/lit/ds/slos080n/slos080n.pdf?&ts=1590083569530|TL072]] operational amplifier with an [[http://www.ti.com/lit/ds/symlink/lm358-n.pdf?&ts=1590063244194|LM358]], both work the same.
  
 ---- ----
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 One can connect an audio mixer (with a 500 kOhm resister) and oscilloscope probes to three different points. X and Y are at the connection of the capasitor and the poti. The third one (Z) is on the gyrator board.\\ One can connect an audio mixer (with a 500 kOhm resister) and oscilloscope probes to three different points. X and Y are at the connection of the capasitor and the poti. The third one (Z) is on the gyrator board.\\
 +
 +{{:analogcomputation:chua_s_circuit_02_xyz.jpg?400|}}\\
  
 An oscilloscope in X-Y mode should look like that:\\ An oscilloscope in X-Y mode should look like that:\\