• 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
D6000 MesCom Shortform Rev2
D6000 MesCom Shortform Rev2

... Internal monitoring of temperature, battery voltage, supply voltage, and radio module state is also performed. The board temperature sensor has an accuracy ±2°C and is measuring the board temperature, not the ambient temperature. The MesCom MUST be supplied with DC between 6V and 30V and will requir ...
2008. Lecture 2 (361-1-3661) for 2010
2008. Lecture 2 (361-1-3661) for 2010

OTC PERCEPTION - Equipements Delfosse
OTC PERCEPTION - Equipements Delfosse

... ECG ELECTRON COMBUSTION GRAPH FOLLOW THE BOUNCING ELECTRON ...
Real time estimation of Li-ion battery resistance used in the
Real time estimation of Li-ion battery resistance used in the

nano-TA: Enable your AFM perform sub-100nm Local
nano-TA: Enable your AFM perform sub-100nm Local

... Local heating allows a number of measurements to be performed on each sample because the probe is only affecting a very local region allowing characterization of the uniformity of the sample. Shown above is a 5 µm intermittent contact mode image of a polymer blend composed of Polystyrene (PS) or Pol ...
AC: see alternating current ADEX: Awards for Design
AC: see alternating current ADEX: Awards for Design

... "devoted to worldwide cooperation and the exchange on all matters relating to the science and art of light and lighting, colour and vision, photobiology and image technology." One of the CIE's achievements is the development of the Color Rendering Index (CRI). (www.CIE.co.at) ...
Failure Mechanisms For Transient Voltage Suppressors
Failure Mechanisms For Transient Voltage Suppressors

Viva Voce on Galvanometer to Ammeter or Voltmeter
Viva Voce on Galvanometer to Ammeter or Voltmeter

AD8361 数据手册DataSheet 下载
AD8361 数据手册DataSheet 下载

... The AD8361 is an rms-responding (mean power) detector that provides an approach to the exact measurement of RF power that is basically independent of waveform. It achieves this function through the use of a proprietary technique in which the outputs of two identical squaring cells are balanced by th ...
MAX® 5510 PRO
MAX® 5510 PRO

... Isolated and Balanced modes since there is no way to categorically state that “Isolated Power” is better than “Balanced Power” or that “Balanced Power” is better than “Isolated Power”. Both modes provide clean, regenerated power to your digital source components. One setting may provide better resul ...


... more than 6% above or 12% below the nominal voltage (ANSI utilization band B). • Steady state line frequency varies 58.7 to 60.7 Hz. • The distribution of short term disturbances is: ...
TDS / TDSH / TDSL Series Timer - Single Shot
TDS / TDSH / TDSL Series Timer - Single Shot

Reconfigurable Microvalve Array for BioMEMS Lab-on-a
Reconfigurable Microvalve Array for BioMEMS Lab-on-a

Thermal Management for Surface Mount
Thermal Management for Surface Mount

Full PowerPoint
Full PowerPoint

... • Now we can find “propagation delay” tp; the time between the input reaching 50% of its final value and the output to reaching 50% of final value. • Today’s case, using “perfect input” (50% reached at t=0): 0.5 = e-tp tp = - ln 0.5 = 0.69 It takes 0.69 time constants, or 0.69 RC. • We can find the ...
ADS7862 数据资料 dataSheet 下载
ADS7862 数据资料 dataSheet 下载

... approximation A/Ds, two differential sample-and-hold amplifiers, an internal +2.5V reference with REFIN and REFOUT pins and a high speed parallel interface. There are four analog inputs that are grouped into two channels (A and B) selected by the A0 input (A0 LOW selects Channels A0 and B0, while A0 ...
Slide 1 - sm.luth.se
Slide 1 - sm.luth.se

... Figure 4.9 Cross-section of a CMOS integrated circuit. Note that the PMOS transistor is formed in a separate n-type region, known as an n well. Another arrangement is also possible in which an n-type body is used and the n device is formed in a p well. Not shown are the connections made to the p-ty ...
SN65LVDS33 数据资料 dataSheet 下载
SN65LVDS33 数据资料 dataSheet 下载

... tsk(o) is the magnitude of the time difference between the tPLH or tPHL of all receivers of a single device with all of their inputs driven together. tsk(pp) is the magnitude of the time difference in propagation delay times between any specified terminals of two devices when both devices operate wi ...
Electronic Devices and Circuits
Electronic Devices and Circuits

... valance electron (0.01 eV for Ge and 0.05 eV for Si). At room temperature almost all the fifth electrons from the donor impurity atom are raised to conduction band and hence the number of electrons in the conduction band increases significantly. Thus every antimony atom contributes to one conduction ...
SN74AHCT1G32 数据资料 dataSheet 下载
SN74AHCT1G32 数据资料 dataSheet 下载

... http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requ ...
FDMF6708N — Extra-Small, High-Performance, High-Frequency DrMOS Module FDMF6708N — Extra-Small, Hig Benefits
FDMF6708N — Extra-Small, High-Performance, High-Frequency DrMOS Module FDMF6708N — Extra-Small, Hig Benefits

... Charged Device Model, JESD22-C101 ...
NTC thermistors for inrush current limiting, leaded and
NTC thermistors for inrush current limiting, leaded and

... Be sure to provide an appropriate fail-safe function to prevent secondary product damage caused by malfunction (e.g. use a metal oxide varistor for limitation of overvoltage condition). This listing does not claim to be complete, but merely reflects the experience of EPCOS AG. ...
charging systems
charging systems

Bipolar Junction Transisitors-III - CIIT Virtual Campus: Digital Library
Bipolar Junction Transisitors-III - CIIT Virtual Campus: Digital Library

P01413521359
P01413521359

< 1 ... 405 406 407 408 409 410 411 412 413 ... 2207 >

Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report