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V. Design Of Power Supply Circuit
V. Design Of Power Supply Circuit

... Nowadays, population is more increasing in megacities all over the world because of large density population, public areas. These places have many difficulties to use the manual doors. The manual doors are often convenient because they are too hard to push open, especially with full hands or while p ...
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... With this method SW2 operates out of phase with SW1 and SW3. In the on condition SW1 and SW3 are closed with SW2 open whereas in the off condition SW1 and SW3 are open and SW2 closed. In the off condition the input to SW3 is effectively the isolation leakage of SW1 working into the on-resistance of ...
Chapter 4 Fast Gas Chromatography: Design, construction and evaluation of a fast
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... parallel) were connected between the column and ground potential as opposed to between the power supply and the column. A Darlington pair is similar to the situation described above where a smaller transistor drives a bigger one. In this case it was convenient to have both transistors in the same pa ...
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... In the original Fluke manual you can find the alignment tolerances for offset adjustments. Although this is will surely be correct from technical point of view, it is often not applicable in praxis very well. You can feel happy if you find a suitable DC voltmeter that has a DC resolution of the 10mV ...
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... The low-voltage power supply is another weak area in the original series of compact Macs. Again, part of the problem is the lack of a fan. The design is only truly happy at room temperature, so over time without a fan, the power supply can gradually cook itself into oblivion. This cooking can result ...
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Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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