• 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
Circuit Pitfalls
Circuit Pitfalls

ILUMEN PID SOLUTION
ILUMEN PID SOLUTION

... integrated GPRS communication (to www.myilumen.be) so we can control the solution without going on site. ...
Lecture 16: Pitfalls & Reliability
Lecture 16: Pitfalls & Reliability

Mesh Analysis - WordPress.com
Mesh Analysis - WordPress.com

SP3243E 数据资料DataSheet下载
SP3243E 数据资料DataSheet下载

... The SP3243E products are 3 driver/5 receiver RS-232 transceiver solutions intended for portable or hand-held applications such as notebook and palmtop computers. The SP3243E includes one complementary receiver that remains alert to monitor an external device's Ring Indicate signal while the device i ...
ZXTD720MC Features and Benefits Mechanical Data
ZXTD720MC Features and Benefits Mechanical Data

... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
Operation manual for BLHeli Atmel Rev13.x
Operation manual for BLHeli Atmel Rev13.x

TM-11-5099 - Liberated Manuals
TM-11-5099 - Liberated Manuals

I-Tech Series Operation Manual I-T4000 I-T6000
I-Tech Series Operation Manual I-T4000 I-T6000

... I-Tech-Reihe-Verstärker verlangen Klasse die 2 Produktionsverdrahtung. Los amplificadores de la Serie I-tech requieren de un cableado de salida Clase 2. MAGNETIC FIELD CAUTION! Do not locate sensitive high-gain equipment such as preamplifiers or tape decks directly above or below the unit. Because t ...
09210021, 09210019, 11310015
09210021, 09210019, 11310015

... this THD, the lifetime of other electrical devices like fan, tube-light etc. decreases significantly [2]. This thesis aims to compare and analyze the total harmonic distortion, efficiency and cost effectiveness of different inverters from different renowned companies and finally to propose a design ...
to get the file - Caltech Optical Observatories
to get the file - Caltech Optical Observatories

...  Subdividing exposures reduces persistence considerably: less volume of the depletion region, and thus fewer traps, are exposed to charge (Fig. 5).  Continuous reset during illumination suppresses persistence, since no (new) traps are exposed to charge when there is no change in depletion width.  ...
User`s Manual - Metaphase Technologies
User`s Manual - Metaphase Technologies

... Added IP Octet changes; Added IP recommended address; Added FAQ page; added Wire Gage Charts ...
TSHG6210
TSHG6210

... Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use ...
Ch2 Basic Analysis Methods to Circuits
Ch2 Basic Analysis Methods to Circuits

... – Analysis of circuits using node or loop analysis requires solutions of systems of linear equations. – These equations can usually be written by inspection of the circuit. ...
Trade of Motor Mechanic Module 2
Trade of Motor Mechanic Module 2

... 1.1 Layout of Electrical Circuits The layout of electrical circuits and their components are shown as diagrams made up of symbols and connecting lines. Being able to read a circuit diagram is important when trying to trace and correct a fault in an electrical system. However, all manufacturers do n ...
Sample HTPD article for RSI
Sample HTPD article for RSI

... Many high-energy and nuclear physics experiments are conducted using spin-polarized electron beams produced by illuminating a GaAs photocathode inside a DC high voltage photoelectron gun with circularly polarized light [Poelker, book Rao and Dowell editors]. The vacuum conditions within the photogun ...
Page: 1 User`s Manual Page: 1 VERSION 1.1.07.02.2012
Page: 1 User`s Manual Page: 1 VERSION 1.1.07.02.2012

... Added IP Octet changes; Added IP recommended address; Added FAQ page; added Wire Gage Charts ...
AD6640 数据手册DataSheet下载
AD6640 数据手册DataSheet下载

... Specifically designed to address the needs of multichannel, multimode receivers, the AD6640 maintains 80 dB spuriousfree dynamic range (SFDR) over a bandwidth of 25 MHz. Noise performance is also exceptional: typical signal-to-noise ratio is 68 dB. The AD6640 is built on Analog Devices’ high speed c ...
pdf - Jan Verspecht BVBA
pdf - Jan Verspecht BVBA

MAX3320A/B/L/T 3V to 5.5V, up to 250kbps True RS
MAX3320A/B/L/T 3V to 5.5V, up to 250kbps True RS

ba50/75/100 series
ba50/75/100 series

ES-77C_A1 - Littelfuse
ES-77C_A1 - Littelfuse

... A. Regulatory Requirements: 1. The equipment shall be UL Listed as type NKCR—Industrial Control Equipment-Motor Controllers-Auxiliary Devices. 2. The equipment shall be ULC Listed as type NKCR7—Industrial Control Equipment-Motor Controllers-Auxiliary Devices Certified for Canada. 3. The equipment sh ...
Cold-Junction Compensated Thermocouple-to-Digital Converter General Description Features
Cold-Junction Compensated Thermocouple-to-Digital Converter General Description Features

... The Typical Application Circuit shows the device interfaced with a microcontroller. In this example, the device processes the reading from the thermocouple and transmits the data through a serial interface. Drive CS low and apply a clock signal at SCK to read the results at SO. Conversions are alway ...
The origin of switching noise in GaAs/AlGaAs lateral gated devices
The origin of switching noise in GaAs/AlGaAs lateral gated devices

... and double dot devices.2,3,4,5 Unfortunately, they are extremely sensitive to fluctuations in their local electrostatic environment. These fluctuations provide one of the most important obstacles to developing such devices for future applications in areas such as spin and charge qubits, where a quie ...
Airglow photometers on board sounding rockets
Airglow photometers on board sounding rockets

... photon pulses from the pmt, and converts them to TTL levels. The photon pulse rate, proportional to the photometer signal, is determined by counting in 4 mS intervals at a repetition rate of 250 Hz, the sample counts then being sent to the PCM telemetry encoder. The longitudinal photometer views the ...
< 1 ... 180 181 182 183 184 185 186 187 188 ... 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