luzik Geschrieben December 11, 2014 at 10:58 Share Geschrieben December 11, 2014 at 10:58 What can cause master brick restarting ? When i switch my desk lamp http://www.top3dmodels.com/uploads/desk_lamp_sample_solid_main.jpg in about 15cm from my wires master brick restarts. It also happend to me while driving DC motor from DC brick (full forward, full backward, and so on) Both cases are fully reproductable. How can i prevent this ? Zitieren Link zu diesem Kommentar Share on other sites More sharing options...
raphael_vogel Geschrieben December 11, 2014 at 12:20 Share Geschrieben December 11, 2014 at 12:20 The reason seems to be EMI (http://en.wikipedia.org/wiki/Electromagnetic_interference) Especially inductive loads like motors can generate high voltages when switching them off. Some counter meassures: Flyback Diode parallel to the motor or parallel to the relais. Varistors..... Snubber (resistor and capacitor). See also TF documentation: http://www.tinkerforge.com/en/doc/Hardware/Bricklets/Dual_Relay.html#dual-relay-inductive-load-switching There is a lot of information in the net about this. Example: http://www.sealevel.com/support/article/AA-00470/0/How-to-Switch-Highly-Inductive-Loads-Using-Digital-I-O.html Zitieren Link zu diesem Kommentar Share on other sites More sharing options...
luzik Geschrieben December 14, 2014 at 17:28 Autor Share Geschrieben December 14, 2014 at 17:28 Thank You ..i will try! Zitieren Link zu diesem Kommentar Share on other sites More sharing options...
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