Bulb Mode en Canon EOS 40D optocupler - Printable Version +- LRTimelapse Forum (https://forum.lrtimelapse.com) +-- Forum: LRTimelapse PRO Timer (https://forum.lrtimelapse.com/Forum-lrtimelapse-pro-timer) +--- Forum: LRT Pro Timer Free (English) (https://forum.lrtimelapse.com/Forum-lrt-pro-timer-free-english) +--- Thread: Bulb Mode en Canon EOS 40D optocupler (/Thread-bulb-mode-en-canon-eos-40d-optocupler) Pages:
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RE: Bulb Mode en Canon EOS 40D optocupler - abejarutas - 2018-03-05 Hello Patrick: The optocoupler Siemens LH1056 that I use is open collector technology, it is like a solid state relay or and it has no polarity, and that is an advantage. It also supports loads of 100mA, compared to the 50mA that supports the HCPL-817 that you indicate, according to the data sheet. I have not had any problems, I feed the diode with a resistance of 330 ohms and directly the output controls my Canon G11 and the EOS 40D. Works fine. I attached 2 links for better information: schematic optocoupler]https://drive.google.com/file/d/0BxtwalY8tpnAbDNGNDhPSnAtM0U/view?usp=sharing]schematic optocoupler http://pdf.datasheetcatalog.com/datasheet/siemens/LH1056.pdf I wish you good luck. Jesus RE: Bulb Mode en Canon EOS 40D optocupler - daggel - 2018-03-07 Hi Jesus, my local dealer didn't had the LH1056 on stock, so I gave the 817 another shot and it works fine. Don't have clue what the issue was, probably wireing. Thanks for your help anyway. With best wishes. Patrick RE: Bulb Mode en Canon EOS 40D optocupler - abejarutas - 2018-03-07 It is always the same story: try, correct and learn, until finally ... everything works! Congratulation. |