• 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
A 7.2 GSa/s, 14 bit or 12 GSa/s, 12 bit Signal Generator on a Chip in
A 7.2 GSa/s, 14 bit or 12 GSa/s, 12 bit Signal Generator on a Chip in

... Abstract – We present a complete signal generator with integrated digital-to-analog convertor (DAC) on a chip which can generate complex waveforms at up to 7.2 GSa/s with 14 bit resolution or at up to 12 GSa/s with 12 bit resolution. The 3 dB bandwidth is 4.4 GHz. The chip includes digital signal pr ...
LTM8032 - EN55022B Compliant 36V, 2A DC/DC uModule Regulator
LTM8032 - EN55022B Compliant 36V, 2A DC/DC uModule Regulator

... current to 50µA in a typical application. The oscillator reduces the LTM8032’s operating frequency when the voltage at the ADJ pin is low. This frequency foldback helps to control the output current during start-up and overload. The LTM8032 contains a power good comparator which trips when the ADJ p ...
line and motor reactance coils for converters
line and motor reactance coils for converters

Evaluation Board User Guide UG-122
Evaluation Board User Guide UG-122

Zener diode and regulators
Zener diode and regulators

Zigbee Nation
Zigbee Nation

... Onboard expansion capabilities for external application- specific development activities Onboard BDM port for MCU Flash reprogramming and in- circuit hardware debugging RS-232 port for monitoring and Flash programming LEDs and switches for demonstration, monitoring and control Connections for nine-v ...
1K/2K/3K Online UPS Uninterruptible Power Supply
1K/2K/3K Online UPS Uninterruptible Power Supply

Part 1: Choosing Flux Linkage As An Independent Variable
Part 1: Choosing Flux Linkage As An Independent Variable

AB34169175
AB34169175

ASNT1012 Reconfigurable MUX CMU
ASNT1012 Reconfigurable MUX CMU

Multi-Output Power Supply with VCOM Amplifier MAX17114 General Description
Multi-Output Power Supply with VCOM Amplifier MAX17114 General Description

... The MAX17114 generates all the supply rails for thin-film transistor liquid-crystal display (TFT LCD) TV panels operating from a regulated 12V input. It includes a stepdown and a step-up regulator, a positive and a negative charge pump, an operational amplifier, a high-accuracy, high-voltage gamma r ...
OpticalADC_Tutorial
OpticalADC_Tutorial

... the benefits associated with the topology: noise shaping, higher SNR and DR, and potentially lower power for a given precision. Note that the use of a ΔΣ ADC architecture limits the application space of the down-converter to a narrowband signal in order to achieve a high over-sampling ratio (OSR) an ...
halaman pengesahan - (COT) Publications
halaman pengesahan - (COT) Publications

... The converter used at the grid interface is termed as the line-side converter or the Grid Side Converter (GSC) and operates at the grid frequency. Flow of active and reactive powers is controlled by adjusting the phase and amplitude of the inverter terminal voltage respect to the grid voltage. Activ ...
ADS8323 数据资料 dataSheet 下载
ADS8323 数据资料 dataSheet 下载

... typical common-mode rejection of 70dB. The device accepts a differential analog input voltage in the range of –VREF to +VREF, centered on the common-mode voltage (see the Analog Input section). The device also accepts bipolar input ranges when a level shift circuit is used at the front end (see Figu ...
Testing Resistance Welding Transformers
Testing Resistance Welding Transformers

Chapter 12 Three-Phase Transformer Design
Chapter 12 Three-Phase Transformer Design

AAT2605 数据资料DataSheet下载
AAT2605 数据资料DataSheet下载

... For proper load voltage regulation and operational stability, a capacitor is required between pins VOUT and GND. The COUT capacitor connection to the LDO regulator ground pin should be made as direct as practically possible for maximum device performance. The AAT2605's LDO regulators have been speci ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

Thick Film Resistor Array CRA04S
Thick Film Resistor Array CRA04S

ISL9R1560PF2 15A, 600V, STEALTH™ Diode ISL9R1560PF2 — STEALTH™ Diode
ISL9R1560PF2 15A, 600V, STEALTH™ Diode ISL9R1560PF2 — STEALTH™ Diode

High precision specification and test of power converters at CERN
High precision specification and test of power converters at CERN

... • Magnet current requirements are derived from beam performance parameters like tune stability for quadrupoles and orbit variation for correctors. • As a consequence, important performance parameters are, in most cases stability (affected by drift) and repeatibility (affected by noise) ...
Article 100 - Draves Electrical Class
Article 100 - Draves Electrical Class

Study and Development of a Photovoltaic Panel Simulator
Study and Development of a Photovoltaic Panel Simulator

... constant values of both voltage and current. But this is not entirely similar to the operation of the panel, since it does not take into account climatic conditions. The simulator developed, would be the midpoint in order to perform these measurements, based on the characteristics of the panel, radi ...
E32 4 49i
E32 4 49i

NCP1565 - Highly Integrated Dual-Mode Active
NCP1565 - Highly Integrated Dual-Mode Active

< 1 ... 638 639 640 641 642 643 644 645 646 ... 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