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Chapter 14.pmd
Chapter 14.pmd

... any of its electrons is decided by the orbit in which it revolves. But when the atoms come together to form a solid they are close to each other. So the outer orbits of electrons from neighbouring atoms would come very close or could even overlap. This would make the nature of electron motion in a s ...
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Atomic-Scale Field-Effect Transistor as a Thermoelectric Power
Atomic-Scale Field-Effect Transistor as a Thermoelectric Power

EEC 115 Electrical Engg Science 1 theory - Unesco
EEC 115 Electrical Engg Science 1 theory - Unesco

Winding pitch
Winding pitch

... 5/6 winding pitch as standard, with 2/3 winding pitch available as an option. The optimum winding pitch depends on the application and how the generator will be used. The main factors to consider are whether the generator will be operated in parallel with others, and what type of grounding system wi ...
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Electronic Instruments

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... Ordering Information (Note 4) ...
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TPS62260-Q1 数据资料 dataSheet 下载

... powered applications. It provides up to 600-mA output current from a single Li-Ion cell and is ideal to power mobile phones and other portable applications. With an wide input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range, two a ...
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Fault Finding in Thyristor Equipment

Synchronous Switch-Mode, Li-Ion, and Li
Synchronous Switch-Mode, Li-Ion, and Li

... this output and VSS. There is an internal electrical connection between the exposed thermal pad and VSS. The exposed thermal pad must be connected to the same potential as the VSS pin on the printed circuit board. The power pad can be used as a star ground connection between VSS and PGND. A common g ...
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Sat Buddy 2 Instruction Sheet

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How to achieve higher redundancy of the UPS for QPS ?

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Fiber optic xmit/rcvr for 1 sec tick (

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Wireless Power Design Kit – Medium Power Order Code

... Additionally LED2 will light green when the 5V DC/DC converter has started up. The Transmitter Module is now in low power “idle” mode where it is periodically pinging on the wireless interface to detect presence of a receiver device. The stacked RX+LED Modules (or any other Qi compliant receiver) ca ...
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shunt active power filtering for smart appliances

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D1213A-04S Features Mechanical Data

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... TIA/EIA-232-F and provides the electrical interface between notebook and subnotebook computer applications. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, the device includes an always-active noninverting output (ROUT1B), which allo ...
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A CMOS low power, process/temperature variation tolerant RSSI

... Figure 5 shows the block diagram of a limiter and logarithmic amplifier. When input signal is small, all stages provide full gains. Therefore, the overall gain becomes An where A is a gain of each stage and n is number of stages. As input signal increases and reaches a certain level, the last stage ...
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40HH PD - Systemy Pomiarowe
40HH PD - Systemy Pomiarowe

... Type 40HH (Fig. 1) can measure sound pressure levels well below the threshold of human hearing; and is amply suitable for use in sound-power measurements on even very quiet products. Its very wide dynamic range permits measurements down to below – 2 dB re. 20 μPa (in ⅓-octave bands) from 20 Hz to 20 ...
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... identifies them as being associated with ranges that may, in normal use, be subjected to particularly hazardous voltages. For maximum safety, the meter and its test leads should not be handled when these terminals are energized. This symbol indicates that a device is protected throughout by double i ...
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Document
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... The input stage is composed of a pre-amplifier and some sorts of transducers depending on the physical quantity to be measured. The output stage may devices such as meters, oscilloscopes, charts, or magnetic recoders. In the block diagram transmission lines are used especially when the transducer is ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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