• 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


DA9063 unused pin configuration
DA9063 unused pin configuration

Series and Parallel Resistor Circuits
Series and Parallel Resistor Circuits

... reading change? No, it would remain the same. As long as either lead doesn’t cross an element, it won’t change the reading. That means we could continue moving all the way down to the lower two corners and still get the same voltage reading, but that reading should be the voltage across R2. This lea ...
Chapter 11: Data acquisition and manipulation
Chapter 11: Data acquisition and manipulation

Sealed Lead-Acid Batteries
Sealed Lead-Acid Batteries

... optimum life for batteries used in standby applications where charging is continuous. The chargers deliver a constant voltage of 2.25 to 2.30 volts per cell which allow the battery to seek its own current level and maintain itself in a fully charged condition. This series is best suited for burglar ...
FAN5353 3 MHz, 3 A Synchronous Buck Regulator 
FAN5353 3 MHz, 3 A Synchronous Buck Regulator 

... may fail to start. If VOUT fails to achieve regulation within 320 µs from the beginning of soft-start, the regulator shuts down and waits 1200 µs before attempting a restart. If the regulator is at its current limit for more than about 60 µs, the regulator shuts down before restarting 1200 µs later. ...
ADA4860-1
ADA4860-1

... The ADA4860-1 is a low cost, high speed, current feedback op amp that provides excellent overall performance. The 800 MHz, −3 dB bandwidth, and 790 V/μs slew rate make this amplifier well suited for many high speed applications. With its combination of low price, excellent differential gain (0.02%), ...
RD-021M8
RD-021M8

... ◇Do not use with the motor except the stepping motor. ◇Operate the rated current of stepping motor within the specified input current limits only. ◇Please use the wire rod with the cross-section area corresponding to current value. ◇Because this product generates heat, please make it stick to metal ...
Word - ITU
Word - ITU

... than the true peak. Operators are instructed to make programmes peak generally to the 0 vu reading. Experience has shown that the true programme peaks are higher than indicated by between 6 dB and 13 dB, depending on the programme material. When, additionally, operator errors are taken into accoun ...
Technical News #57
Technical News #57

... The tables in AS4388:1996 are quite comprehensive and clearly defines the maximum permissible current draw for a conductor of specific dimensions and cross sectional area, within a specific ambient, for use with low voltage apparatus. Copper has a watts loss value that can be calculated on a watts/m ...
UNIVERSITI TEKNOLOGI MALAYSIA
UNIVERSITI TEKNOLOGI MALAYSIA

... data recovery circuits (CDR), which extracts the clock signal and retimes the data signal [15]. In high-speed receivers, a demultiplexer (DMUX) converts the fast serial data ...
Active Voltage Contrast and Seebeck Effect Imaging
Active Voltage Contrast and Seebeck Effect Imaging

TPS204xB-Q1, TPS205xB-Q1 Current Limited Power
TPS204xB-Q1, TPS205xB-Q1 Current Limited Power

... The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporate 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a singl ...
Lecture_18
Lecture_18

... contribute fault current are those with energy storage. Thus the models of generators (and other rotating machines) are very important since they contribute the bulk of the fault current. Generators can be approximated as a constant voltage behind a time-varying reactance: ...
XR250 351
XR250 351

... Type XR relays are developments for specific applications of the type AR relay range. They are electro-mechanical relays with a consistent positive action, a long service life and complying with the appropriate requirements of IEC 255 and BS142. Models XR250/251 have two attracted armature elements, ...
Precalculations – Individual Portion Introductory Lab: Basic
Precalculations – Individual Portion Introductory Lab: Basic

... position, etc.). The key to a successful lab experience is to become familiar with the function and operation of the laboratory instruments. Instruments are available for both static and dynamic measurements. Static measurements are satisfactory for parameters that are either constant or changing ve ...
Timers and Oscillators - Microwave Electronics Laboratory at UCSB
Timers and Oscillators - Microwave Electronics Laboratory at UCSB

... ■ Astable, in which the circuit is not stable in either state, and continuously oscillates from one state to the other. ■ Monostable, in which one of the states is stable, but the other is not. The circuit will flip into the unstable state for a determined period, but will eventually return to the s ...
DNBT8105 Features Mechanical Data
DNBT8105 Features Mechanical Data

... Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically n ...
Calibration and documentation for process manufacturing:Costs
Calibration and documentation for process manufacturing:Costs

General Specifications Models UD310/UD320/UD350 Manual Setters
General Specifications Models UD310/UD320/UD350 Manual Setters

AZV321 Description Pin Assignments Applications Functional Block
AZV321 Description Pin Assignments Applications Functional Block

Circuits
Circuits

... potential difference between its terminals is equal to its emf. However, when that device has current through it, the potential difference ...
ADS828 数据资料 dataSheet 下载
ADS828 数据资料 dataSheet 下载

... Figure 2 shows the typical circuit for an ac-coupled analog input configuration of the ADS828 while all components are powered from a single +5V supply. With the RSEL pin connected high, the full-scale input range is set to 2Vp-p. In this configuration, the top and bottom references (REFT, REFB) pro ...
BDTIC www.BDTIC.com/infineon Wireless Solutions Stabilizing the RF power of
BDTIC www.BDTIC.com/infineon Wireless Solutions Stabilizing the RF power of

... Radio links operated in the sub-gigahertz ISM bands are usually subjected to significant field-strength level fluctuations at the receive site, even if the RF power, radiated by transmitter antenna would be held at a steady level. This fluctuation is due to multipath propagation, variations of the p ...
UniOP Local I/O Board UIM05
UniOP Local I/O Board UIM05

... 4. Analog Output Configuration The UIM05 Analog Output board has several parameters that have to be properly configured according to the operation mode you desired for each channel. For all the four channels it is required to specify the operating mode; the full-scale limit is fixed to a certain val ...
< 1 ... 871 872 873 874 875 876 877 878 879 ... 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