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504e - İnfotek
504e - İnfotek

... The new 50MHz analog oscilloscope HM504 is unsurpassed in its price range, convincing by high performance measurement characteristics and operation comfort. Other outstanding features are the integrated 100 MHz frequency counter, which also enables period time measurement and five automatic voltage ...
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... are conducting current in a forward direction, and the applied voltage polarity is suddenly switched, the diode will not immediately shut off --- some reverse current will flow for a short time (called the reverse recovery time of the diode). This recovery time is often abbreviated as TRR. Some diod ...
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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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