• 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
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)

MAX6730–MAX6735 Single-/Dual-/Triple-Voltage µP Supervisory Circuits with Independent Watchdog Output General Description
MAX6730–MAX6735 Single-/Dual-/Triple-Voltage µP Supervisory Circuits with Independent Watchdog Output General Description

... MAX6735 offer factory-set reset thresholds for monitoring voltages from +0.9V to +5V and an adjustable reset input for monitoring voltages down to +0.63V. The combination of these features significantly improves system reliability and accuracy when compared to separate ICs or discrete components. Th ...
physics - The New Indian Model School, Dubai
physics - The New Indian Model School, Dubai

... Differentiate between conduction, convection and radiation. v Learn about different methods of heat transfer in different situations in nature and man made devices. ...
Ultrasound System Considerations and their Impact
Ultrasound System Considerations and their Impact

Repetitive swells
Repetitive swells

... Metal-oxide varistors, introduced in the early seventies, are used extensively as the basic nonlinear element in surge arresters built for electric utilities and in 'surge suppressors' for end-use protection at utilization voltage levels. These devices operate by diverting the surge currents away fr ...
The use of PAS capacitors / lithium capacitors for adapting to
The use of PAS capacitors / lithium capacitors for adapting to

FEATURES DESCRIPTION
FEATURES DESCRIPTION

... All gamma/VCOM channels swing to within 100mV of the positive or negative supply rail with a 10mA load. All channels are programmed using a standard two-wire interface that supports standard operation up to 400kHz and also high-speed data transfer up to 3.4MHz. The integrated VCOM driver features up ...
Enlarge - Mouser
Enlarge - Mouser

Electrosurgical generators
Electrosurgical generators

... Peak voltages are maximum at rated load and are indicated in parentheses where particularly relevant. Data published or provided by the manufacturers: ConMed Corp, Utica, NY; EndoStat distributed by Boston Scientific Inc, Natick, Mass; ERBE USA Inc, Marietta, Ga; Meditron/Nexcore, Waldwick, NJ; Vall ...
mic1
mic1

... To use the bread board, the legs of components are placed in the holes (the sockets). The holes are made so that they will hold the component in place. The circuit is built by placing components and connecting them together with jumper wires. ...
ZXGD3101N8 Description Features
ZXGD3101N8 Description Features

... 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 ...
Aalborg Universitet
Aalborg Universitet

... The use of the parallel interleaved VSCs for the active power filter application is presented in [13], [14], where a commonmode inductor is employed to suppress the circulating current and the reduction in the size of the passive components is demonstrated. A use of Coupled Inductor (CI) for suppres ...
4. CMOS Transistor Theory - The University of Texas at Austin
4. CMOS Transistor Theory - The University of Texas at Austin

Average Current Mode Control of Switching Power Supplies
Average Current Mode Control of Switching Power Supplies

3 Abbreviations, Acronyms, AND definitions
3 Abbreviations, Acronyms, AND definitions

... • less than 0.1 dB insertion loss over a 100 Hz to 10 kHz range into a 600 ohm load • 900-ohm termination impedance • at least 30 dB return loss with respect to 900 ohms over a 300 Hz to 10 kHz range. Note: 750 ohms and 1250 ohms may be added to the DC feed resistance to simulate line resistance ass ...
FMKA140 Datasheet
FMKA140 Datasheet

... arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance w ...
SSL3250A
SSL3250A

... such as mobile phones and PDAs. The boost converter delivers high performance and drives a single or dual, high brightness LED at up to 500 mA with over 85 % efficiency. The driver can be programmed to operate in Flash, Torch or Indicator / Video-on mode. The small silicon size and the high internal ...
231 Manual - Lake Shore Cryotronics, Inc.
231 Manual - Lake Shore Cryotronics, Inc.

Subscriber access provided by UNIV OF
Subscriber access provided by UNIV OF

... the current-gate voltage (Ids - Vg) characteristics of the transistors at Vds ) 1 V with W ) 100 µm and various channel lengths, showing on-currents at Vg ) -10 V varying from several tens of microamperes to 1.8 mA, reversely proportional to the channel length. The normalized on and off current dens ...
PCA9601 1. General description Dual bidirectional bus buffer
PCA9601 1. General description Dual bidirectional bus buffer

... 7.3 Connections to other bus buffers Two or more SX or SY I/Os must not be interconnected. The PCA9601 design does not support this configuration. Bidirectional I2C-bus signals do not allow any direction control pin so, instead, slightly different logic LOW voltage levels are used at SX/SY to avoid ...
Transformer Failure Due to Circuit-Breaker
Transformer Failure Due to Circuit-Breaker

... ship propulsion electrical system in Fig. 6. The system consists of 3 × 2865-kW generators, a 4160-V three-phase bus, two 1865-kW drives/motors for forward ...
3TL Vacuum Contactors Selection and Ordering Data
3TL Vacuum Contactors Selection and Ordering Data

Chapter #5: Measuring Rotation - benchmark
Chapter #5: Measuring Rotation - benchmark

... discharges as it feeds current through the resistor. As the capacitor discharges, the voltage across its terminals gets lower and lower (decays). INPUT 7 ...
Standard Available Coil Voltages
Standard Available Coil Voltages

CONTROL SYSTEM LAB LAB MANUAL (EC-616-F)
CONTROL SYSTEM LAB LAB MANUAL (EC-616-F)

< 1 ... 232 233 234 235 236 237 238 239 240 ... 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