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low-voltage logic (lvc) designer`s guide
low-voltage logic (lvc) designer`s guide

... Although a complete migration may not be feasible for a particular application, beginning to integrate 3.3-V components in a system still has benefits. If system parts are designed using 3.3-V parts, then when the remaining parts become available, converting the system completely to 3.3-V parts is a ...
Baluns: Choosing the Correct Balun
Baluns: Choosing the Correct Balun

“Remedial Action Scheme” Definition Development
“Remedial Action Scheme” Definition Development

ADC16DX370 - Texas Instruments
ADC16DX370 - Texas Instruments

Class 8839 Enclosed ALTIVAR 66 Specifications
Class 8839 Enclosed ALTIVAR 66 Specifications

... voltage and frequency, AC line power to fixed DC voltage. The power section shall be insensitive to phase rotation of the AC line. 2. For AC Drives rated 125–450 hp, the AC Drive manufacturer shall supply an 18-pulse design using a multiple bridge rectifier with integral reactor and phase shifting t ...
ADS5424 数据资料 dataSheet 下载
ADS5424 数据资料 dataSheet 下载

... The maximum sampling rate at which certified operation is given. All parametric testing is performed at this sampling rate unless otherwise noted. ...
Resistance Welding Fundamentals
Resistance Welding Fundamentals

POWER FEED® 10M WIRE FEEDER
POWER FEED® 10M WIRE FEEDER

Powerware BladeUPS for Data Centers, 12kW single system
Powerware BladeUPS for Data Centers, 12kW single system

... parallel bus bar capacity rating, or upstream breaker ratings. (5) Redundancy: When installing systems in a parallel redundant (PR) configuration, the system shall include redundant input converters, each with semiconductor fusing, and logic controlled contactors to remove a failed module from the p ...
网络电视业务实现方案研究
网络电视业务实现方案研究

X-ray imager - UWSpace - University of Waterloo
X-ray imager - UWSpace - University of Waterloo

... a 32x32 flat panel X-ray detector. There are two main sections in any X-ray panel detector, Gate Drivers and Charge Amplifiers. In order to minimize the size of the circuit, which can be very large if discrete components are used for both sections, an application specific integrated circuit (ASIC) d ...
amGard pro
amGard pro

... used if used in conjunction with any type of internal release function (push IR) or all in one head module with IR Handle. proE - Extracted Key Lock Adaptor for Safety This unit ensures that the door cannot be opened until the key has been removed from the lock, and the machine/ process cannot be re ...
- The University of Liverpool Repository
- The University of Liverpool Repository

... The experimental set-up is shown in figure 2. A signal generator (Farnell ESG.1) was connected to an audio amplifier (HQ power VPA2350MB) and a custom made step-up transformer (Express Transformers, UK) to generate sinusoidal voltages at 10 kHz and 8 kVpk-pk. The electrical connection to the microfl ...
ELECTRODYNAMIC TETHERS FOR SPACECRAFT PROPULSION
ELECTRODYNAMIC TETHERS FOR SPACECRAFT PROPULSION

... Boost (thrust forces of order 1 N) with a tether no longer than 10 km requires tether currents of order 10 A. The critical issue is how to draw ionospheric electrons at that rate. The standard tether carries insulation along its entire length, exchanging current with the ionosphere only at the ends: ...
to 1746-IB16 PDF for more information.
to 1746-IB16 PDF for more information.

... except the SLC 5/01 processor are capable of controlling remotely located I/O. By adding an I/O scanner module, you can use these processors to control/monitor these remotely located I/O across ControlNet, DeviceNet, and Universal Remote I/O links. SLC 500 processors are single-slot modules that you ...
ADM6305 数据手册DataSheet 下载
ADM6305 数据手册DataSheet 下载

... DSP- and microprocessor-based systems. Low supply current and a small form factor make these devices suitable for portable and battery-operated applications. If a monitored power supply voltage falls below the minimum voltage threshold, a single active low output asserts triggering a system reset. O ...
Thermionic Valve Analogue Stages for Digital
Thermionic Valve Analogue Stages for Digital

... The device I call Timeslicing DAC is known by many Names. Technics calls it "MASH", Pioneer calls it "Pulseflow" and Philips calls it Bitstream and so on. These DAC’s are often also referred to as Low-Bit or single DAC’s. It is in many ways an ingenious Device. Instead of attempting to make precisio ...
OILTAP® R Technical Data (TD 115/02)
OILTAP® R Technical Data (TD 115/02)

... When stressed with impulse voltage, the permissible withstand voltage „a“ must be adhered to between the end of a coarse tap winding connected with the K tap selector contact and the tap selector contact at the end of the tapped winding of the same phase. b = Between the tap selector contacts of dif ...
DEEP SEA ELECTRONICS DSE8600 Series PC configuration suite
DEEP SEA ELECTRONICS DSE8600 Series PC configuration suite

... All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means or other) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents ...
• 3/4 Channel DMX or Stand Alone LED Dimmer
• 3/4 Channel DMX or Stand Alone LED Dimmer

... This requires the operator to set the rotary (DMX) switches to numbers above a valid DMX address, and then press the “Learn” momentary switch to store the new operational mode into non-volatile memory. From that point on, the selected modes will be in effect - unless changed manually. After programm ...
Class 8839 Enclosed ALTIVAR 66 Specifications
Class 8839 Enclosed ALTIVAR 66 Specifications

... A. Upon power-up, the AC Drive shall automatically test for valid operation of memory, valid operation of option module, loss of analog reference input, loss of communication, dynamic brake failure, DC to DC power supply, control power, and the pre-charge circuit. B. The AC Drive shall be UL Listed ...
Estimation of Synchronous Generator Parameters from On
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Application Manual for Power Supply Noise Suppression
Application Manual for Power Supply Noise Suppression

... Normally, if the signal level does not change for the power supply of the C-MOS digital circuit, there is hardly any current flow. However, if charge current at the gate capacitance (when the signal level switches from “0” to “1”) and discharge current (when the signal level switches from “1” to “0” ...
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Application Note

... www.fairchildsemi.com ...
16 Transformer and Transformer-feeder Protection
16 Transformer and Transformer-feeder Protection

... c. number of banked transformers d. transformer design and rating e. system fault level The very high flux densities quoted above are so far beyond the normal working range that the incremental relative permeability of the core approximates to unity and the inductance of the winding falls to a value ...
< 1 ... 49 50 51 52 53 54 55 56 57 ... 1974 >

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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