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Characteristic frequencies in averaged description of step
Characteristic frequencies in averaged description of step

... of the power stage. Therefore, the knowledge of characteristic frequencies corresponding to poles and zeros of the control-to-output transmittance of the converter power stage is necessary for finding satisfactory characteristics of the control circuit. A typical design of the control circuit assume ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)

... the most predictable, but at circuit level an optimized design is desirable having less numbers of transistors, small power consumption and reduces delay. The low power digital Circuits is Pass Transistor Logic (PTL), it is only obtainable by the nmos transistor. Where a control signal is applied to ...
Liebert Series 610 UPS Installation Manual - 1000kVA, 60Hz, Three Phase Single-Module
Liebert Series 610 UPS Installation Manual - 1000kVA, 60Hz, Three Phase Single-Module

AD9751 数据手册DataSheet 下载
AD9751 数据手册DataSheet 下载

... The AD9751 has been optimized for ultrahigh speed applications up to 300 MSPS where data rates exceed those possible on a single data interface port DAC. The digital interface consists of two buffered latches as well as control logic. These latches can be time multiplexed to the high speed DAC in se ...
Lock-In Specification - Perfect Power Systems
Lock-In Specification - Perfect Power Systems

...  Protection against misuse: The UPS shall be designed with breaker on/off sensor, power supply sensor, etc. to prevent harm to the UPS caused by user error.  Accepts wide input range: The UPS shall accept wide input range, so that it can work effectively under an unstable AC source. All of the in ...
Service Manual TR 210 Huntron Tracker 071-0113-00 - To-Way
Service Manual TR 210 Huntron Tracker 071-0113-00 - To-Way

Standard: Substation Installation Technical
Standard: Substation Installation Technical

... Applicable to Customer’s main switchboard location with respect to a Substation. Contiguous means adjoining or very close to the Substation enclosure to ensure that cable/s connecting the substation equipment to the main switchboard has zero probability of being damaged with consequent risk to safet ...
Harmonic Analysis of A DFIG for Wind Energy Conversion System
Harmonic Analysis of A DFIG for Wind Energy Conversion System

... the negative sequence components is given. The equivalent circuit is derived by establishing the relationship of the voltages and currents expressed in qd variables and further in phasors. For the negative sequence, the q-axis, d-axis and 0-axis variables become dc variables at steady state when the ...
Resistor Selection
Resistor Selection

... low. This may be to protect adjacent heat sensitive apparatus, to hold the resistance value very precisely both with changing load and over long periods of time and to insure maximum life. 8. Other Considerations High Resistance. High resistance units, which require the use of very small diameter w ...
MAX187/MAX189 +5V, Low-Power, 12-Bit Serial ADCs General Description Features
MAX187/MAX189 +5V, Low-Power, 12-Bit Serial ADCs General Description Features

... the SHDN pin high. Letting SHDN float disables the internal reference, which allows the use of an external reference, as described in the External Reference section. External Reference The MAX189 operates with an external reference at the REF pin. To use the MAX187 with an external reference, disabl ...
Keor T 80-120 kVA
Keor T 80-120 kVA

... installation parameters (geographical position whether or not there is a lightning rod, whether or not there are other suppressors in the electrical installation, etc ) • Even when connections removed, residual voltages of capacitors and/or high temperature may exist on connection terminals and insi ...
OCCUPATIONAL HEALTH AND SAFETY ACT - O
OCCUPATIONAL HEALTH AND SAFETY ACT - O

... 4. Accidental contact by a worker or by a worker’s tool or equipment with energized electrical equipment, installations or conductors. 5. Accidental contact by a crane, similar hoisting device, backhoe, power shovel or other vehicle or equipment or its load with an energized electrical conductor rat ...
Digital Transmission (Line Coding) EE4367 Telecom. Switching & Transmission Prof. Murat Torlak
Digital Transmission (Line Coding) EE4367 Telecom. Switching & Transmission Prof. Murat Torlak

section 16610 - uninterruptible power system
section 16610 - uninterruptible power system

... The UPS will automatically switch into bypass mode if: a. b. c. ...
An Ultra-Low-Power Pulse Oximeter Implemented with an Energy-Efficient Transimpedance Amplifier
An Ultra-Low-Power Pulse Oximeter Implemented with an Energy-Efficient Transimpedance Amplifier

Lecture 8 - Purdue University Cytometry Laboratories
Lecture 8 - Purdue University Cytometry Laboratories

In-Wall Volume Control Installation Instructions
In-Wall Volume Control Installation Instructions

E740035 KPA100 man rev H
E740035 KPA100 man rev H

... Set the heat sink, shield, and painted panels aside until needed. Leave them wrapped to protect their finish. You should do a complete inventory (see below), which may take an hour or more. If anything is missing, contact Elecraft. Color codes and other markings are shown in parentheses. Refer to Ap ...
The Electromagnetic Cannon Saba Zargham, Hamid
The Electromagnetic Cannon Saba Zargham, Hamid

... all three sections together , a MATLAB program was developed to simulate the design and solve the resulting differential equations (by Runge-Kutta method). Various effective factors mentioned above, are studied both theoretically and experimentally in order to find the optimized solenoid, which res ...
TOA Electronics Amplifier Guide
TOA Electronics Amplifier Guide

... amplitude of the waveform. Since the peak levels of a complex waveform (one containing many frequencies) may occur rarely or frequently, an averaged value is used, based on the “root mean square” or RMS method. In this method, the amplitude is squared (so that all values are positive), then the resu ...
APC Smart
APC Smart

MAX15049 Evaluation Kit Evaluates: General Description Features
MAX15049 Evaluation Kit Evaluates: General Description Features

... and tested PCB that demonstrates the capabilities of the MAX15049. The MAX15049 is a high-performance, triple-output synchronous buck controller with sequencing capability. The EV kit requires a 5V to 16V (12V, typ) DC input-voltage range for normal operation. The MAX15049 EV kit outputs are configu ...
Explicit formulas for the solutions of piecewise linear networks
Explicit formulas for the solutions of piecewise linear networks

... defined by piecewise linear (PL) mappings and used in so-called PL simulators to obtain the response of nonlinear electrical networks for a given value of the input sources [1]. For these PL-models, various formulations or model descriptions have been devised [2]–[4]. However, it has recently been s ...
Beam Diagnostics - Studentportalen
Beam Diagnostics - Studentportalen

... • The beam current in the beam pipe is accompanied by an equal “wall current” on the inner surface of the beam pipe, flowing in opposite direction. • To avoid perturbation, resistors are connected at several points symmetrically around the circumference of the beam pipe cross • The voltage developed ...
8546
8546

... IEC 61952 Ed. 1.0 b:2002 Insulators for overhead lines - Composite line post insulators for a.c. with a nominal voltage greater than 1000 V "Applies to composite line post insulators consisting of a load-bearing, cylindrical, insulating solid core made up of fibres - usually glass - in a resin-based ...
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Alternating current



Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).
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