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Unijunction Transistor
Unijunction Transistor

... VE ≥ ηVBB + VB, holes enter from emitter ‘E’ to the n-type bar and these are repelled by the base B2 due to its positive potential and are attracted by B1 which is at negative potential. ( Actually these holes get neutralized by attracting electrons from B1, here VB is the potential barrier of P-n j ...
3 - KFUPM Faculty List
3 - KFUPM Faculty List

... give reliable data with which to work. Such experimental results show evidence that the leakage current on common porcelain insulators exhibits non-linear behavior. Current transport was studied by exploring time-averaged i–v plots. From the results presented and the above discussion it is clear tha ...
sb6100 industrial shock-block™ technical faq
sb6100 industrial shock-block™ technical faq

... reliable grounding, to provide a low impedance path so that the voltage across the body during a fault does not exceed 150 V. Class E – A GFCI that will interrupt the circuit to the load when the ground-fault current is 20 mA or more and is intended to be used in circuits with one or more conductors ...
FN 5030.indd
FN 5030.indd

... of the motor drive is required with this series ...
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... approaches have been presented to show how these space vectors can be selected for particular operating conditions [8]. For applications such as ac motor drives, it is desirable to minimize the harmonics and inter harmonics voltage to prevent premature bearing failure and reduce EMI levels. Several ...
ISSCC 2017 Digest of Technical Papers
ISSCC 2017 Digest of Technical Papers

... simplifies the transmitter system by eliminating the intermediate frequency stage. It also offers the opportunity to address the extensive range of cellular bands with the same architecture and building blocks. Direct synthesis of carriers in the 5 to 6GHz unlicenced bands remains a challenge for RF ...
Bell_206-04_Electrical_System
Bell_206-04_Electrical_System

Chapter 29 Alternating Currents and Power Transmission
Chapter 29 Alternating Currents and Power Transmission

... • For a step-up transformer, Ns > Np, and so Vs > Vp. • For a step-down transformer, Ns < Np, and so Vs < Vp. ...
Quasi-resonant control with XMC1000
Quasi-resonant control with XMC1000

Non-Inverting Gain Amplifier
Non-Inverting Gain Amplifier

MAX9030/MAX9031/ MAX9032/MAX9034 Low-Cost, Ultra-Small, Single/Dual/Quad Single-Supply Comparators
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... current per comparator over the -40°C to +125°C operating temperature range. The combination of lowpower, single-supply operation down to +2.5V, and ultra-small footprint makes these devices ideal for portable applications. The MAX9030 is a low-cost single comparator with shutdown. The MAX9031, MAX9 ...
ADXRS642 英文数据手册DataSheet 下载
ADXRS642 英文数据手册DataSheet 下载

... Figure 13 shows a simplified version of one of four polysilicon sensing structures. Each sensing structure contains a dither frame that is electrostatically driven to resonance. This produces the necessary velocity element to produce a Coriolis force when experiencing angular rate. The ADXRS642 is d ...
Chapter 18,19
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... available by connecting them in parallel • We would refer to multiple-cell entities as batteries • But in common usage, all cells and batteries are called batterise ...
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ES100_Lecture 3

... through a branch when the circuit contains multiple number of voltage or current sources One big advantage is that we do not have to use Cramer’s rule or complicated mathematical operations but simply algebraically adding solutions obtained from analysing the network with one source activated at a t ...
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850nm Multi-mode

... the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.8V. 5) VeeR and VeeT may be internally connected within the SFP module. 6) RD-/+: These are the differential ...
application note u-129 uc3907 load share ic
application note u-129 uc3907 load share ic

... Another method is to use an external controller to perform the load sharing. This is achieved by comparing all load sharing signals from the individual power units and adjust the corresponding feedback signal to balance the load currents. This system does perform well but requires an additional cont ...
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Model Number Structure - OMRON Industrial Automation

... Wire the inputs so that the time range selector (terminals 2 and 3), reset input (terminal 4), and start input (terminal 6) are either connected or not connected to power supply terminal 1. Do not wire the terminals so that an external voltage is applied (∗1) to these input terminals or so that the ...
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... potential energy that is always relative between two points  Voltage is measured in volts, using a voltmeter.A voltmeter is always connected in a parallel circuit (more than one circuit)  For a fixed resistor , as the voltage across it increases the current (flow of electrons) increases.  For a f ...
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Lab 6 FSK Comm Syste.. - The College of Engineering at the

DM74LS191 Synchronous 4-Bit Up/Down Counter with Mode Control
DM74LS191 Synchronous 4-Bit Up/Down Counter with Mode Control

150-W, 86% High-Efficiency Primary Side Regulated DCM/CCM
150-W, 86% High-Efficiency Primary Side Regulated DCM/CCM

... brushless motors, using low-voltage motors instead of high-voltage motors brings in several advantages, such as: • Low-voltage motors and drives can be directly used for either 110-V or 220-V line input operation using a universal input AC-DC converter. • Low-voltage motor driver ICs typically offer ...
Lecture 24 - McMaster Physics and Astronomy
Lecture 24 - McMaster Physics and Astronomy

... 1. as the changing current flows through, the magnetic flux through the loop changes 2. this is opposed by induced emf in the loop which opposes the change in net magnetic flux 3. by Lentz’s law, the induced E-field opposes the current flow ...
MC500 POWER AMPLIFIER
MC500 POWER AMPLIFIER

... Some power amplifier manufacturers claim that their products do not need or do not use protection circuits and that such circuits compromise performance. Mclntosh feels that protection circuits are desirable and necessary to prevent amplifier or loudspeaker damage due to abnormal circumstances. The ...
Ohm`s Law
Ohm`s Law

... Arrow Analysis for Resistance Arrow Analysis is useful for basic Ohm’s Law understanding, but it can also be used during troubleshooting of an electrical circuit. An example of the usefulness of Arrow Analysis for troubleshooting would be if a circuit you are working on keeps “blowing a fuse”. (A fu ...
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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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