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attach_12_1
attach_12_1

... internal electronic systems. The single largest event is the initial stroke (component A), this can be coupled as a magnetic field, penetrating the structure and inducing currents with the waveform 1 (6.4/70µs) shape. Electric and / or magnetic fields penetrating the structure will excite resonances ...
DS1813 - Maxim Integrated
DS1813 - Maxim Integrated

... processor-based system of impending power failure. When VCC is detected as out-of-tolerance, the RST signal is asserted. On power-up, RST is kept active for approximately 150ms after the power supply has reached the selected tolerance. This allows the power supply and microprocessor to stabilize bef ...
PREPARATION OF TRANSFORMER SPECIFICATIONS By VALLAMKONDA SANKAR P.Eng. E-mail:
PREPARATION OF TRANSFORMER SPECIFICATIONS By VALLAMKONDA SANKAR P.Eng. E-mail:

MMST6427 Features Mechanical Data
MMST6427 Features Mechanical Data

... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
Using one circuit to control another
Using one circuit to control another

manual - Zika industrials LTD
manual - Zika industrials LTD

... The development of inverter gas-shielded welding equipment benefits from the development of the inverter power supply theory and components. Inverter gas-shielded welding power source utilizes high-power component IGBT to transfer 50/60Hz frequency up to 15KHz, then reduce the voltage and commutate, ...
DATA  SHEET PBSS5140U 40 V low V PNP transistor
DATA SHEET PBSS5140U 40 V low V PNP transistor

... 1. Please consult the most recently issued document before initiating or completing a design. 2. The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is availabl ...
TEM Transmission Lines
TEM Transmission Lines

Class 1 Introduction - The University of Jordan
Class 1 Introduction - The University of Jordan

... This is the natural result of the previous factors, particularly simplicity and compactness. Fluid power systems provide an relatively low cost method for power transmission. Also, power and frictional losses are comparatively small. ...
Preliminary Design Review
Preliminary Design Review

Power Supply for a Remotely Operated Vehicle
Power Supply for a Remotely Operated Vehicle

... Functional requirements are intended to clearly define what the project should and should not do.  The power supply should output three nearly constant voltages. o 3.3 Vdc with voltage variation within +.1/-.5V o 5 Vdc with voltage variation within +.2/-.1V o 12 Vdc with voltage variation within +. ...
HART
HART

Synthesis of Input-Rectifierless AC/DC Converters
Synthesis of Input-Rectifierless AC/DC Converters

... C/DC converters without input rectifiers have received some attention because of their relative advantages in eliminating power loss in rectifiers and reducing harmonic distortions. In airborne applications where the mains frequency is as high as several hundreds hertz, the phase-lead effect of the ...
Sensorless Control for a Switched Reluctance Wind Generator
Sensorless Control for a Switched Reluctance Wind Generator

... where N is the number of samples in a state of commutation, ii is the ith sampled current, and iN is the last current sample. Moreover, z0 = 0, and the term [N (N 2 − 1)]−1 can be obtained from a lookup table (no more than 16 terms), avoiding a mathematical division that requires several instruction ...
07110059, 07110100 & 07110067
07110059, 07110100 & 07110067

... high security, high frequency re-use, and low interference for 60 GHz links. Figure 4 shows two buildings th at are 1 km apart. The wedges show th e rad iation pattern from 2.4, 24 and 60 GHz links operating with the same performance at 1 km . The links have equivalent 1-foot diameter antennas. The ...
ISL45042A - Intersil
ISL45042A - Intersil

... The following sequence can be used to verify the programmed value without having to sequence the VDD supply. To verify the programmed value, follow the following steps. The ISL45042A will read memory contents and be set to that value when the CE pin is grounded. 1. Power-up the ISL45042A. ...
Press Release
Press Release

S-57P1 S Series HALL IC
S-57P1 S Series HALL IC

E o
E o

ANALYSIS OF GROUNDING PRACTICES IN UNIFORM LAYER
ANALYSIS OF GROUNDING PRACTICES IN UNIFORM LAYER

... Grounding o f either a system or equipment involves the provision o f a connection to the general mass o f ground. This connection should have resistances not greater than the design value and should be capable o f carrying the expected maximum fault current. It is therefore necessary to consider th ...
Generator Performance Standards
Generator Performance Standards

Technical data, wiring diagram, dimensions (PDF - 485 kb)
Technical data, wiring diagram, dimensions (PDF - 485 kb)

Potential Difference - Farid Minawi`s Physics zone
Potential Difference - Farid Minawi`s Physics zone

TPS70175-Q1 数据资料 dataSheet 下载
TPS70175-Q1 数据资料 dataSheet 下载

... VSENSE2/FB2 ...
Analysis of Transient Power-angle Characteristic for Synchronous
Analysis of Transient Power-angle Characteristic for Synchronous

... about tie-line stability. Since, there is concerned with the tripping of the line, the power fluctuation that can be tolerated depends on the initial operating condition of the system including the line loading and the nature of the impacts to which it is subjected. C. The Equivalent Network Impedan ...
< 1 ... 807 808 809 810 811 812 813 814 815 ... 2014 >

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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