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ELECTRICAL CIRCUITS
ELECTRICAL CIRCUITS

... When the switch is closed, the lamp lights up. This is because there is a continuous path of metal for the electric current to flow around. ...
AD8614 数据手册DataSheet 下载
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... The transient environment varies widely. There are substantial differences among those experienced by, say, automotive systems, airborne or shipborne equipment, space systems, industrial equipment or consumer products. All types of electronic components can be destroyed or degraded. 1 Even capacitor ...
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... I can show my understanding of effects, ideas and relationships by describing and explaining:  how electric currents are a flow of charged particles  what is meant by internal resistance and the effect of e.g. an electron beam in a TV tube, electrons in a internal resistance in a circuit metal, el ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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