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Circuits
Circuits

... You have an alien pen friend who lives on a planet just like earth with seas, and trees, and mountains, and fluffy clouds. However, animal life has evolved very differently on his planet and he has a very different anatomy to you - he is just like a big blob! Your friend is intrigued when you write ...
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... Three-phase induction motors are required to provide sufficient torque to accelerate the motor and its load from standstill to full speed, and to maintain full speed efficiently at all torque levels up to the design full-load torque. Most modern three-phase induction motors have characteristics that ...
The missing modes of self-organization in cathode boundary layer
The missing modes of self-organization in cathode boundary layer

... of the different modes can be found in a review paper by Benilov [8] in this cluster issue. Some cases predicted by the modeling corresponded well to experimental observations, while others seemed impossible to be realized physically (e.g. a ring-shaped plasma spot located in the interior of the cat ...
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... unchanged, when the conductors rotate to the opposite side of the machine, the directions of the forces on the armature conductors would remain unchanged (a downward and b upward). These forces would now present a net clockwise rotational force and prevent rotation. If, on the other hand, the armatu ...
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... categorize the part as a split-supply or single-supply part. However, it does not mean that the op amp has to be operated that way— it may or may not be able to operate from different voltage rails. Consult the data sheet for the op amp, especially the absolute maximum ratings and voltage-swing spec ...
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... and possibly to be integrated with other parts of the transceiver. Thanks to the advancement in semiconductor technology, voltage-controlled oscillators (VCOs) are now available in the form of monolithic microwave integrated circuit (MMIC). Their sizes and costs have been reduced considerably while ...
Supplementary Protectors (UL1077 mini circuit breakers) 2
Supplementary Protectors (UL1077 mini circuit breakers) 2

... Scope ...
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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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