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eigenbau:analogoptocoupler [2011/08/12 12:26] – [Circuit diagram] kelkar | eigenbau:analogoptocoupler [2011/08/12 14:03] – [Function] kelkar | ||
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==== Function ==== | ==== Function ==== | ||
- | An optocoupler is used to isolate a voltage source from the process (or experiment) by creating a optical link between the two using an LED-photodiode combination. A digital optocoupler can output only digital signals (high or low), while an analog optocoupler faithfully reproduces the input voltage into the same output voltage but now produced by an independent power source. This device provides | + | An optocoupler is used to isolate a voltage source from the process (or experiment) by creating a optical link between the two using an LED-photodiode combination. A digital optocoupler can output only digital signals (high or low), while an analog optocoupler faithfully reproduces the input voltage into the same output voltage but now produced by an independent power source. This device provides |
- | The optocoupler circuit and the board is a replica of the circuit by Todd Meyrath which can be found {{http:// | + | The optocoupler circuit and the board is a replica of the circuit by Todd Meyrath which can be found {{http:// |
/* Ausführlichere Beschreibung: | /* Ausführlichere Beschreibung: | ||
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==== Circuit diagram==== | ==== Circuit diagram==== | ||
* The {{: | * The {{: | ||
- | * The source files can be obtained from the [[eigenbau: | + | * The Eagle source files can be obtained from the [[eigenbau: |
- | + | ||
- | {{: | + | |
==== Layout ==== | ==== Layout ==== | ||
* Abmessungen der Leiterplatte: | * Abmessungen der Leiterplatte: |