• 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
Power Fundamentals: Buck Regulator Architectures
Power Fundamentals: Buck Regulator Architectures

Temperature Sensor Manual
Temperature Sensor Manual

... relative to its common lead. The variation from one part to another can range from 2.97 volts to 2.98 volts at 25 degrees Celsius. This represents a voltage variance of 20 mV, which equates to only 2 degrees Celsius or 3.6 degrees Fahrenheit. This is totally within the calibration range of the ID-40 ...
150 WATT AMPLIFIER CIRCUIT - IDC
150 WATT AMPLIFIER CIRCUIT - IDC

... We have more related list of Amplifier Circuits that you may like to visit; 1. 2 X 60 Watts Stereo Amplifier Circuit – is designed using LM4780, an audio amplifier IC that can deliver 60 Watt RMS output power per channel to 8 Ohms speakers. Advantages of using this IC are low harmonic distortion com ...
COOLPRO CATHODIC CONVERTERTM
COOLPRO CATHODIC CONVERTERTM

... high current DC-DC converter for impressed current cathodic protection. Its high efficiency makes it perfect for use in solar powered applications. This efficient power electronics design also minimises component operating temperature and thermal cycling prolonging the lifetime of the controller eve ...
Mutiple Choice Questions
Mutiple Choice Questions

Improvement of Voltage Profile in A Radial Distribution
Improvement of Voltage Profile in A Radial Distribution

ECE 5411 CMOS Analog Integrated Circuit Design Sample Midterm 2 Name:
ECE 5411 CMOS Analog Integrated Circuit Design Sample Midterm 2 Name:

Monolithic Amplifier PGA-103+ 50Ω The Big Deal
Monolithic Amplifier PGA-103+ 50Ω The Big Deal

... • Drivers in linearized transmit systems • Secondary amplifiers in ultra High Dynamic range receivers ...
LM5070 - Texas Instruments
LM5070 - Texas Instruments

IO-Link PHY for Device Nodes (Rev. B)
IO-Link PHY for Device Nodes (Rev. B)

... Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products con ...
Standing Wave Patterns
Standing Wave Patterns

... The standing wave patterns provide the top envelopes that bound the time-oscillations of voltage and current along the line. In other words, the standing wave patterns provide the maximum values that voltage and current can ever establish at each location of the transmission line for given load and ...
R RE ES SE
R RE ES SE

... from a +1.62V to +3.6V supply and delivers a guaranteed 500mA continuous load current with a low 175mV dropout. The high-accuracy (±0.5%) output voltage is preset to internally trimmed voltages from +0.75V to +3.0V. An active-low, open-drain reset output remains asserted for at least 70ms after the ...
Transformers and Alternating Current
Transformers and Alternating Current

MCOTS-C-28-28-HZ-NMF - SynQor, Inc.
MCOTS-C-28-28-HZ-NMF - SynQor, Inc.

6. Discrete I/O - Philadelphia University Jordan
6. Discrete I/O - Philadelphia University Jordan

... control program and is sent to the output module at the end of scan (output update).  If the signal from the processor is 1, the output module will switch the supplied voltage (e.g., 120 VAC) to the output field device, turning the output ON.  If the signal received from the processor is 0, the mo ...
HMC706LC3C 数据资料DataSheet下载
HMC706LC3C 数据资料DataSheet下载

16-V to +80-V, Low - Texas Instruments
16-V to +80-V, Low - Texas Instruments

... – 0.6-V Internal Voltage Reference Quiescent Current: 1800 μA (Max) Latch-Up Exceeds 100 mA per JESD78 Package: VSSOP-8 ...
LT1812 - 3mA, 100MHz, 750V/µs Operational Amplifier with Shutdown
LT1812 - 3mA, 100MHz, 750V/µs Operational Amplifier with Shutdown

... Note 8: The LT1812C is guaranteed to meet specified performance from 0°C to 70°C. The LT1812C is designed, characterized and expected to meet specified performance from –40°C to 85°C but is not tested or QA sampled at these temperatures. The LT1812I is guaranteed to meet specified performance from –40° ...
hx65 dtc p1451: check vpwr voltage to cv solenoid
hx65 dtc p1451: check vpwr voltage to cv solenoid

ExamView - Physics Entire Unit Review + KEY.tst
ExamView - Physics Entire Unit Review + KEY.tst

... ____ 38. Based on the illustration above, object B would be a) attracted to object A and repelled by object C. b) attracted to object C and repelled by object A. c) repelled by object A and attracted to object C. d) none of the above. ____ 39. Which of the following most accurately explains the diff ...
Advanced Licence Course - Chelmsford Amateur Radio Society
Advanced Licence Course - Chelmsford Amateur Radio Society

... • Capacitors can hold a lethal charge when open circuit. • A parallel resistor can provide a safety leakage path to discharge large value capacitors. • High value resistors provide a very low current drain across a capacitor. For example it can make a PSU safer without affecting operation. • In a ci ...
DRV600 数据资料 dataSheet 下载
DRV600 数据资料 dataSheet 下载

... Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such informati ...
R1510L - Zeftronics
R1510L - Zeftronics

... When the engine is running, the voltage regulator keeps the bus voltage constant by controlling the alternator’s field current: increasing it when the system load increases and decreasing it when the load drops.The regulated bus voltage is normally about 14V unless the alternator is self-current lim ...
SR103 Datasheet
SR103 Datasheet

Twelve Channel Multi-Zone Amplifier User Manual Model: MA1260
Twelve Channel Multi-Zone Amplifier User Manual Model: MA1260

< 1 ... 1087 1088 1089 1090 1091 1092 1093 1094 1095 ... 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