meta data for this page
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
eigenbau:analogoptocoupler [2013/04/16 17:27] – [Function] The central optocoupler circuit was inspired by fig. 17 of the datasheet kmk | eigenbau:analogoptocoupler [2013/07/02 12:07] – [Precision Analog Optocoupler] kmk | ||
---|---|---|---|
Line 3: | Line 3: | ||
/ | / | ||
- | ====== Precision | + | ====== Precision Optocoupler ====== |
/* Ein Titelbild: */ | /* Ein Titelbild: */ | ||
/* {{: | /* {{: | ||
Line 10: | Line 10: | ||
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 good electrical isolation of the power source (typically, an analog output card of a computer) from potentially harmful processes that might occur on the experiment side (eg: voltage spikes during fast switching of magnetic fields). | 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 good electrical isolation of the power source (typically, an analog output card of a computer) from potentially harmful processes that might occur on the experiment side (eg: voltage spikes during fast switching of magnetic fields). | ||
- | The circuit and the board is a replica of a project by Todd Meyrath which can be found {{http:// | + | The circuit and the board is a replica of a project by Todd Meyrath which can be found {{http:// |
The original board was designed using the layout software " | The original board was designed using the layout software " | ||
Line 28: | Line 28: | ||
==== Test ==== | ==== Test ==== | ||
- | Eingangssignale sollten sich eins-zu eins am Ausgang wieder finden. | + | Eingangssignale sollten sich eins-zu eins am Ausgang wieder finden. Bandbreite ist etwa 10 kHz. |