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KA78RH33R Low Dropout Voltage Regulator KA78RH33R — Lo
KA78RH33R Low Dropout Voltage Regulator KA78RH33R — Lo

Vacuum Gas-FilledRELAys
Vacuum Gas-FilledRELAys

... Gas-filled relays are ideal for the high in-rush capacitive make and capacitive discharge loads found in electrostatic discharge (ESD) test equipment, cable test equipment and heart defibrillators. Typical models are the RGH5-26S or the RGH3-26S. Gas-filled relays also provide low, stable leakage cu ...
DESIGN OF DC MACHINE
DESIGN OF DC MACHINE

Modifying a Walker for Use in Rehabilitation of Spinal Cord Injuries
Modifying a Walker for Use in Rehabilitation of Spinal Cord Injuries

... from spinal cord injury (SCI), with approximately 12,000 new cases each year1. This type of injury commonly leads to paraplegia, which greatly reduces the mobility of these patients2. This makes it very important to have effective an effective means of rehabilitating these people. Regaining strength ...
RFG1M20090 1.8GHz TO 2.2GHz 90W GaN POWER AMPLIFIER Features
RFG1M20090 1.8GHz TO 2.2GHz 90W GaN POWER AMPLIFIER Features

... *MTTF - median time to failure for wear-out failure mode (30% ldss degradation) which is determined by the technology process reliability. Refer to product qualification report for FIT (random) failure rate. Operation of this device beyond any one of these limits may cause permanent damage. For reli ...
How to Design a Solar-Powered Computing Device White Paper
How to Design a Solar-Powered Computing Device White Paper

... Designing a Solar-Powered Computing Device Compared to other small form factor embedded designs, it’s no surprise that solar-powered devices pose additional voltage regulation and power management challenges. Designers need to integrate a step-down voltage output circuit and a battery backup scheme ...
Massachusetts Institute of Technology Department of Electrical
Massachusetts Institute of Technology Department of Electrical

الشريحة 1
الشريحة 1

Research for the torch (second IA)
Research for the torch (second IA)

... The starter is basically a time delay switch. Its job is to let the current flow through to the electrodes at each end of the tube, causing the filaments to heat up and create a cloud of electrons inside the tube. The starter then opens after a second or two. The voltage across the tube allows a str ...
A simple algorithm for solving the cable equation in
A simple algorithm for solving the cable equation in

... be electrically homogeneous, and to calculate the potential within each compartment (Rall, 1964; Perkel et al., 1981). This method suffers from the drawback that the required numerical calculations are computationally expensive. In addition, the solution represents only a discrete approximation to t ...
Digital Motion Control System Design
Digital Motion Control System Design

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Facility Master Specification Guide

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Faraday`s Law of Induction
Faraday`s Law of Induction

... through the loop as it rotates. That induced voltage around the loops causes a current to flow through the wire and that is the output current of the generator. The negative sign indicates that the induced voltage is in a direction that creates a current that opposes the change in flux in the loop. ...
Losses occur in Transformer
Losses occur in Transformer

Old Company Name in Catalogs and Other Documents
Old Company Name in Catalogs and Other Documents

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... active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). Also included is a logic-controlled, highvoltage switch with adjustable delay. The step-up DC-DC converter provides the regulated supply voltage for the panel source driver ICs. The converter is a high-frequency (1.2MHz) curren ...
other uses, in any current or future media, including reprinting/republishing... advertising or promotional purposes, creating new collective works, for resale... © 2013 IEEE
other uses, in any current or future media, including reprinting/republishing... advertising or promotional purposes, creating new collective works, for resale... © 2013 IEEE

Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown OPA320, OPA320S
Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown OPA320, OPA320S

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... investigate the freewheeling and the ZVS steps. During step 2 the current freewheels into the body-drain diode D2 (see Figure 4); since this is directly biased carriers are injected in the N- epi (holes) and P body (electrons) regions of the device. Once Q2 is turned on, a portion of the total curre ...
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... The voltage rating of a fuse Wait, earlier I said voltage doesn’t matter, so what is the deal with voltage rating? The voltage rating defines the maximum voltage a fuse can stop before an arc can form across a blown fuse. Yes, even if the fuse is blown, it may not protect your system in the event o ...
Real and Reactive Power Sensor
Real and Reactive Power Sensor

... being monitored. For proper operation, correctly phase the CTs. For example, connect the A phase CT and the A phase potential transformer (PT) to the A phase connections on the real and reactive power sensor, etc. Also observe correct polarity phase of the CTs. The phase current sensors step down th ...
Full-text
Full-text

... below its maximum design power while maintaining very high efficiency. Conversely, the converter is better suited to applications which run from a relatively narrow input voltage range and which present a more or less constant load to the converter near the maximum design power. Of course, the power ...
Low-Power, Precision SINGLE-SUPPLY OPERATIONAL AMPLIFIERS FEATURES ±
Low-Power, Precision SINGLE-SUPPLY OPERATIONAL AMPLIFIERS FEATURES ±

... series provides lower quiescent current than older “1013”-type products and comes in current industrystandard packages and pinouts. The combination of low offset voltage, high common-mode rejection, high power-supply rejection, and a wide supply range provides excellent accuracy and versatility. Sin ...
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What is Electricity - Energy Technology Expert

MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package General Description
MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package General Description

... to measure the temperature of a heat-generating component on the circuit board, it should be mounted as close as possible to that component and should share supply and ground traces (if they are not noisy) with that component where possible. This optimizes the thermal connection from the component t ...
< 1 ... 857 858 859 860 861 862 863 864 865 ... 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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