• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
MAX8581/MAX8582 2.5MHz/1.5MHz Step-Down Converters with 60m Bypass in TDFN for CDMA PA Power
MAX8581/MAX8582 2.5MHz/1.5MHz Step-Down Converters with 60m Bypass in TDFN for CDMA PA Power

... High-Power Mode Set Input. Drive HP high to invoke bypass mode. Bypass mode connects IN directly to OUT with the internal bypass MOSFET. DAC-Controlled Input. Output regulates to 2 x VREFIN for the MAX8581 and MAX8582. Dual-mode threshold at 0.465 VIN enables bypass mode. Internally Connected. Conne ...
Slide 1
Slide 1

... Thyristors offered controlled turn-on of currents Most applications were based on the natural commutation of currents In special cases forced commutation were used ...
Development of Economical Maximum Power Point Tracking System
Development of Economical Maximum Power Point Tracking System

THE SWITCHING BEHAVIOUR OF AN IGBT IN ZERO CURRENT
THE SWITCHING BEHAVIOUR OF AN IGBT IN ZERO CURRENT

Hysteresis and charge trapping in graphene quantum dots Hemen
Hysteresis and charge trapping in graphene quantum dots Hemen

... scan rate of 500mV/s. Both net charge stored and the remnant current are found to increase with increase in voltage scan range.The increased charge injection observed indicates the involvement of higher trap state density with scaling of applied electric field. Previous reports attribute the hystere ...
N-Channel 700-V (DS) MOSFET
N-Channel 700-V (DS) MOSFET

... of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in APL data sheets and/or specifications can and do vary in different applicati ...
AP6502 Description Pin Assignments
AP6502 Description Pin Assignments

6 pulse vs. 12 and 18 pulse harmonics effect reduction White paper
6 pulse vs. 12 and 18 pulse harmonics effect reduction White paper

... before installation. Manufacturers usually publish their products’ adherence to these standards. However, since the standards were built on general assumptions about the percentage of harmonics producing loads and transformer size, an installation entirely built with compliant devices may still have ...
Fabrication of Metallic Electrodes with Nanometer
Fabrication of Metallic Electrodes with Nanometer

... As described previously, electromigration of metal atoms has long been known to be the major failure mode of narrow conduction channels,21 and therefore the observation of nanowire breakage due to large current flow is not surprising in itself. A remarkable feature of the breaking process is, howeve ...
Aalborg Universitet Dynamic Consensus Algorithm based Distributed Unbalance Compensation in Islanded Microgrids
Aalborg Universitet Dynamic Consensus Algorithm based Distributed Unbalance Compensation in Islanded Microgrids

guidelines for the preparation of
guidelines for the preparation of

Voltage-Source Active Power Filter Based on Multilevel Converter
Voltage-Source Active Power Filter Based on Multilevel Converter

... noise, and its output voltage [also shown in Fig. 2(a)], as well as its current, has high frequency noise content. Fig. 2(b) shows the proposed topology for a shunt APF using the multilevel converter described before. It can be seen that the voltage generated by this filter is quite similar to a sin ...
Technical Note - Schneider Electric
Technical Note - Schneider Electric

... Standard 120V lighting and small appliances are connected between a live wire and the neutral. Large appliances, such as cooking equipment, space heating, water pumps, clothes dryers, and air conditioners are connected across the two live conductors and operate at 240V, requiring less current and sm ...
large capacity double-rating voltage transformer
large capacity double-rating voltage transformer

voltage - International University of Sarajevo
voltage - International University of Sarajevo

... begins to react to currents of only a few milliamperes. Although most individuals can withstand currents up to perhaps 10 mA for very short periods of time without serious side effects, any current over 10 mA should be considered dangerous. ...
ZHT431 Description Pin Assignments Features Applications Typical
ZHT431 Description Pin Assignments Features Applications Typical

How to Use bq27505 in a Smart Phone System Application Report ......................................................................................
How to Use bq27505 in a Smart Phone System Application Report ......................................................................................

... The phone usually operates in constant power mode. In normal operation, the maximum current spike is about 1 A for a short period of time and average current is around 300 mA. The minimum average discharge current under normal operation is 100 mA. The system standby current is around 5 mA, and the s ...
Chapter 25: Semiconductors Please remember to photocopy 4
Chapter 25: Semiconductors Please remember to photocopy 4

... equivalent to a ‘Positive Hole’ which moves in the opposite direction to an electron. ...
to notes15
to notes15

... operated as a regular two-winding transformer. This does NOT mean that for a given input kVA, we get more output kVA with the autotransformer. This is not the case. What it does say is that whereas the regular two-winding transformer is limited to a maximum, say 50 MVA, then the unit when connected ...
Transformer Basics - Jefferson Electric
Transformer Basics - Jefferson Electric

... the required load voltage, line voltage and load current. For an example let’s use Load voltage = 480 volts, Load current, = 80 Amps and Line voltage = 208 volts. Using the calculation yields a 66 KVA transformer. 2. Go to “How to select a transformer” on page 1.6 and choose the appropriate style of ...
RURD660, RURD660S 6 A, 600 V, Ultrafast Diode Features
RURD660, RURD660S 6 A, 600 V, Ultrafast Diode Features

... parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed application, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers ...
Reduction of Circulating Current Flow in Parallel
Reduction of Circulating Current Flow in Parallel

Current Probes Datasheet
Current Probes Datasheet

... includes models with bandwidths up to 100 MHz, peak currents up to 700 A and sensitivities to 1 mA/div. Teledyne LeCroy current probes are often used in applications such as the design and test of switching power supplies, motor drives, ­electric vehicles, and uninterruptible power supplies. ...
Solution
Solution

... A 200-MVA, 15/200-kV single-phase power transformer has a per-unit resistance of 1.2 percent and a per-unit reactance of 5 percent (data taken from the transformer’s nameplate). The magnetizing impedance is j80 per unit. (a) Find the equivalent circuit referred to the low-voltage side of this transf ...
Journal of Applied Science and Agriculture
Journal of Applied Science and Agriculture

< 1 ... 183 184 185 186 187 188 189 190 191 ... 449 >

Mercury-arc valve



A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report