• 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
5.9. Bipolar Power Devices
5.9. Bipolar Power Devices

... capability, high blocking voltage and high gain with a very low on-state resistance. The operation of the device is best explained by considering the equivalent circuit, shown in Figure 5.9.2. It consists of two bipolar transistors, an npn transistor, Q1, and a pnp transistor, Q2. Both transistors s ...
High-Side Power Monitor Measures Both Current and Voltage up to
High-Side Power Monitor Measures Both Current and Voltage up to

... a high side power monitor that measures current and input voltages from 7V to 80V. The LTC4151 utilizes an internal 12-bit ADC to continuously measure both high side current and input voltage to give a true power reading. The LTC4151 replaces prior solutions that use costly current sense amplifiers ...
Basic Vehicle Electric circuits
Basic Vehicle Electric circuits

Two low power LED flashers
Two low power LED flashers

... across it. Reverse wiring passes no current and for small voltages the device will act as a standard diode but it will brake down when higher voltages are applied. The LED, or Light Emitting Diode produces light when a current (usually 1-20mA) is passed through the device in the forward direction. U ...
PRINCIPLES OF ELECTRONICS It should be quite obvious to the
PRINCIPLES OF ELECTRONICS It should be quite obvious to the

... carefully considered. The capacity of a fixed resistor, rheostat or potentiometer must be such that it can handle the current 5 through the circuit without damage computing the current by means of Ohm's law. Inductors. The purpose of an inductor, or inductance coil, is to insert inductance into a ci ...
Chapter 12: Using Electricity and Electronics
Chapter 12: Using Electricity and Electronics

Integrating for a smart solution
Integrating for a smart solution

... > Emergency and lifeline support > Configurable low credit alarm threshold > Operates in extreme supply conditions > Communication status LED ...
Electrical Hazards - DCA-BR
Electrical Hazards - DCA-BR

... the discharge experienced between our hands Why a person charged with 50kV does not die and a metal handle of a door. when one discharge occurs from him to another It has been demonstrated that the electric load body at lower potential? that rests on the human body can lead it to a To answer this qu ...
Slide 1
Slide 1

... Iload: Load Current Vrip: Amplitude of ripple voltage NOTE: Voltage rating of the capacitor must be > 1.4*Vout and large capacitors should have bleeder resistors for safety! Advanced Mechatronics, Georgia Tech ...
Electronics 101
Electronics 101

... Inverting or non-inverting amplifier ...
EE3003-ModelPaper-2013
EE3003-ModelPaper-2013

AC voltage controller
AC voltage controller

NDV4B16T
NDV4B16T

... These LDs are classified in Class 4 of IEC60825-1 and 21 CFR Part 1040.10 Safety Standards. It is absolutely necessary to take overall safety measures against User's modules, equipment and systems into which Nichia LDs are incorporated and/or integrated. ...
High Voltage on Ships,Safety,Equipment Testing
High Voltage on Ships,Safety,Equipment Testing

...  Because of its very short contact travel a vacuum ...
CH 13.2 Notes
CH 13.2 Notes

...  If you want to measure current you must force it to pass through the meter.  Electrical meters called ammeters, are designed specifically to measure only current. ...
Electric Current
Electric Current

... FUSES: • When a fuse is blown, a small piece of metal melts if the current becomes too high. • This causes a break in the circuit, thus stopping the flow of current through the overloaded circuit. • Circuit breakers have a piece of metal that bends instead of melting and can be reset by changing it ...
RPR-220 : Optical Sensors
RPR-220 : Optical Sensors

syllabus
syllabus

Power Rectifiers_updated - Georgia Institute of Technology
Power Rectifiers_updated - Georgia Institute of Technology

... function of rectifier circuit by using three-field notation of phases, ways, and number of pulses. – Single-phase, half-wave rectifier circuit is given somewhat cryptic designation of 1Ph1W1P (1 phase, 1 way, 1 pulse), meaning that AC supply voltage is single-phase, that current on each phase of AC ...
Chapter 23 = Potential Lecture
Chapter 23 = Potential Lecture

... semiconductor switches • mercury arc valves – Early “tube” type switches • Semiconductor devices- thyristors, insulated-gate bipolar transistors (IGBTs), MOSFETs (power metal– oxide–semiconductor field-effect transistors) • gate turn-off thyristors (GTOs) ...
Lesson 2 - UC Berkeley IEEE
Lesson 2 - UC Berkeley IEEE

MARIA VAN BOMMEL PRESS RELEASE
MARIA VAN BOMMEL PRESS RELEASE

... Stray voltage is man-made electromagnetic energy. The laws of electric engineering require that electrons flowing from a substation transformer must return to that transformer in order to complete the circuit. This is done by the use of neutral wire that exists on the distribution and transmission s ...
intro to circuits and ohms law
intro to circuits and ohms law

BJT-definitions and models
BJT-definitions and models

The transformer
The transformer

< 1 ... 389 390 391 392 393 394 395 396 397 ... 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 © 2025
  • DMCA
  • Privacy
  • Terms
  • Report