query: Do the photocouplers on this module have any possible purpose?
positive_passages.docid: 148525
positive_passages.text: Why are relays so frequently driven by optocouplers?
negative_passages.docid: 85238
negative_passages.text: What is the function of this circuit?
negative_passages.docid: 42002
negative_passages.text: Why must resistors be on the respective anode terminals instead of the common cathode terminal of a RGB LED?
negative_passages.docid: 16720
negative_passages.text: What is the purpose of a master-slave flip-flop?
negative_passages.docid: 44171
negative_passages.text: Does visible light heat things up?
negative_passages.docid: 102483
negative_passages.text: How does this wiring work?
negative_passages.docid: 117214
negative_passages.text: Does the output bypass capacitor of an LM7805 double as a decoupling capacitor?
negative_passages.docid: 50376
negative_passages.text: Why aren't decoupling caps built into the IC or IC package?
negative_passages.docid: 20850
negative_passages.text: Why does connecting a battery's positive terminal to the negative terminal of another battery not create a short circuit?
negative_passages.docid: 130800
negative_passages.text: Why does the YN-565EX need a radio trigger with the YN-560-TX?
negative_passages.docid: 38793
negative_passages.text: What is the purpose of an Ethernet coupler that reverses all the pins?
negative_passages.docid: 64954
negative_passages.text: Do electrical devices "take what they need"
negative_passages.docid: 64612
negative_passages.text: Decoupling capacitors
negative_passages.docid: 36148
negative_passages.text: Other than cost, is there a reason to not use higher rated components than called for by design?
negative_passages.docid: 137401
negative_passages.text: Can anyone explain the output of mount?
negative_passages.docid: 47641
negative_passages.text: what is the purpose of condenser lens in a slide projector?
negative_passages.docid: 58922
negative_passages.text: How do I capture artificial light sources better?