• 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
Presentations \Bremond
Presentations \Bremond

... - it has to withstand higher RF current / voltage (typically 35 kV / 1.6 kA depending on frequency) than in the internal option (typically 8 kV / 0.4 kA) - The risk that an arc in the VTL drift to the window is enhanced 3. CW high power phase shifter are to be developed ...
Closing the Power Gap between ASIC and Custom
Closing the Power Gap between ASIC and Custom

... – We need to characterize the contributing factors – Can we close the power gap? – Identify custom techniques that can be used in an EDA flow ...
Closing the Power Gap between ASIC and Custom
Closing the Power Gap between ASIC and Custom

Agilent AN 372-1 Power Supply Testing
Agilent AN 372-1 Power Supply Testing

AA21156163
AA21156163

P83601
P83601

WT500 Power Analyzer
WT500 Power Analyzer

March 2009 - How to Choose a Voltage Reference
March 2009 - How to Choose a Voltage Reference

WC-WCAP3-C - Listen Technologies Corporation
WC-WCAP3-C - Listen Technologies Corporation

... outputs with a single volume control, and three voting buttons with an OLED voting result information display. The device shall come with an additional priority, next-in-line, and system volume adjustment buttons to allow control over participants using the system. The device shall support voting se ...
air cooled rf load resistor model 8578a, 8578b
air cooled rf load resistor model 8578a, 8578b

AN3269
AN3269

... You can access this mode while Demo mode is running, by pressing the USER push-button for more than 3 seconds and by releasing it. This allows you to verify that the hardware modules needed by the STM8L-DISCOVERY for this example are working properly. In this mode, application checks the LSE oscilla ...
Effects of Power Supply Resonances in Onset Studies of
Effects of Power Supply Resonances in Onset Studies of

Veracity White Paper 002
Veracity White Paper 002

DS1810 5V EconoReset with Push-Pull Output FEATURES PIN ASSIGNMENT
DS1810 5V EconoReset with Push-Pull Output FEATURES PIN ASSIGNMENT

... Figure 3). This arrangement will maintain a valid value on the RST outputs even it VCC approaches 0 volts. During both power-up and -down this arrangement will draw current when RST is in the high state. A value of about 100 kV should be adequate to maintain a valid condition. ...
transmission lines
transmission lines

... a load impedance ZL = (100 + j50)Ω, determine the percentage of the average power reflected over average incident power by the load. Z0=50Ω; ZL = (100 + j50)Ω ...
x8407_projects
x8407_projects

Fundamental Noise Concepts
Fundamental Noise Concepts

ET304a Laboratory 5 Thevenin`s and Norton`s Theorem and the
ET304a Laboratory 5 Thevenin`s and Norton`s Theorem and the

... Figure 2. Circuit Connections for Measuring Thevenin's Open Circuit Voltage. ...
Phasor Measurement Unit or Synchrophasors
Phasor Measurement Unit or Synchrophasors

isolation transformer
isolation transformer

... NP = number of turns in the primary NS = number of turns in the secondary EP = voltage of the primary ES = voltage of the secondary IP = current in the primary IS = current in the secondary ...
Voltage Reference Scaling Techniques: Increase the Accuracy of
Voltage Reference Scaling Techniques: Increase the Accuracy of

HMC788LP2E 数据资料DataSheet下载
HMC788LP2E 数据资料DataSheet下载

... MMIC SMT DC to 10 GHz amplifier. This 2x2 mm DFN packaged amplifier can be used as either a cascadable 50 Ohm gain stage or to drive the LO port of many of HIttite’s single and double-balanced mixers with up to +20 dBm output power. The HMC788LP2E offers 14 dB of gain and an output IP3 of +30 dBm wh ...
II 777 HVR P2 B Installation Instructions
II 777 HVR P2 B Installation Instructions

CC2530 (Rev. B) - Texas Instruments
CC2530 (Rev. B) - Texas Instruments

EEP/402- Power system protection
EEP/402- Power system protection

...  Students will be able to understand the principle of speed control techniques used in various electrical drives.  Students will be able to select proficiently and the proper electrical drive system for particular application.  Students will have ability to analyze the performance of electrical d ...
< 1 ... 75 76 77 78 79 80 81 82 83 ... 316 >

Decibel

The decibel (dB) is a logarithmic unit that expresses the ratio of two values of a physical quantity, often power or intensity. One of these quantities is often a reference value and in this case the decibel expresses the absolute level of the physical quantity. The number of decibels is ten times the logarithm to base 10 of the ratio of two power quantities, or of the ratio of the squares of two field amplitude quantities. One decibel is one tenth of one bel, named in honor of Alexander Graham Bell; however, the bel is seldom used.The definition of the decibel is based on the measurement of power in telephony of the early 20th century in the Bell System in the United States. Today, the unit is used for a wide variety of measurements in science and engineering, most prominently in acoustics, electronics, and control theory. In electronics, the gains of amplifiers, attenuation of signals, and signal-to-noise ratios are often expressed in decibels. The decibel confers a number of advantages, such as the ability to conveniently represent very large or small numbers, and the ability to carry out multiplication of ratios by simple addition and subtraction. By contrast, use of the decibel complicates operations of addition and subtraction.A change in power by a factor of 10 is a 10 dB change. At the half power point an audio circuit or an antenna exhibits an attenuation of 3dB. A change in voltage by a factor of 10 results in a change in power by a factor of 100, which is a 20 dB change. A change in voltage ratio by a factor of two approximately corresponds to a 6 dB change.The decibel symbol is often qualified with a suffix that indicates the reference quantity that has been used or some other property of the quantity being measured. For example, dBm indicates a reference power of one milliwatt, while dBu is referenced to approximately 0.775 volts RMS.In the International System of Quantities, the decibel is defined as a unit of measurement for quantities of type level or level difference, which are defined as the logarithm of the ratio of power- or field-type quantities.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report