• 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
National Semiconductor Temperature Sensor Handbook
National Semiconductor Temperature Sensor Handbook

Dynamic Testing of Permanent Magnet Synchronous Machines
Dynamic Testing of Permanent Magnet Synchronous Machines

VSMD66694
VSMD66694

Surge Protection Portfolio
Surge Protection Portfolio

... appliances all require protection from voltage spikes. While severe weather, lightning and fluctuations in utility power, such as grid switching, are often considered the main culprits of a power disturbance, the overwhelming cause is actually a transient voltage surge that stems from within the hom ...
Evaluates:  MAX5116/MAX5109 MAX5116 Evaluation Kit General Description Features
Evaluates: MAX5116/MAX5109 MAX5116 Evaluation Kit General Description Features

... board. A Building Driver Database window pops up in addition to a New Hardware Found message when installing the USB driver for the first time. If you do not see a window that is similar to the one described above after 30s, remove the USB cable from the board and reconnect it. Administrator privile ...
Elektroniczne Układy i Systemy Zasilania
Elektroniczne Układy i Systemy Zasilania

ZXTP03200BZ
ZXTP03200BZ

... 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 ...
AAT00x angle sensor datasheet
AAT00x angle sensor datasheet

Conductivity Monitoring LRGT 16-1 LRGT 16-2 LRGT 17-1
Conductivity Monitoring LRGT 16-1 LRGT 16-2 LRGT 17-1

PDF copy - Alain Destexhe
PDF copy - Alain Destexhe

Principles of Electrosurgery - Association of Surgeons in Training
Principles of Electrosurgery - Association of Surgeons in Training

... and equipment. The patient’s tissue provides the impedance, producing heat as the electrons overcome the impedance. *The circuit for the alternating current is depicted by arrows in opposite directions. ...
MAX1211 65Msps, 12-Bit, IF Sampling ADC General Description Features
MAX1211 65Msps, 12-Bit, IF Sampling ADC General Description Features

... The MAX1211 is a 3.3V, 12-bit analog-to-digital converter (ADC) featuring a fully differential wideband trackand-hold (T/H) input, driving the internal quantizer. The MAX1211 is optimized for low power, small size, and high dynamic performance in intermediate frequency (IF) sampling applications. Th ...
Survey of Noise Sources in Bulk CMOS
Survey of Noise Sources in Bulk CMOS

GFA-5500 service manual - Music Electronics Forum
GFA-5500 service manual - Music Electronics Forum

... INSPECTION, OR ANY PROCEDURE WHATSOEVER UNLESS YOU HAVE DISCONNECTED THE GFA5500 FROM THE WALL AC OUTLET OR OTHER SOURCE OF AC POWER AND THE POWER-SUPPLY CAPACITORS ARE COMPLETELY DISCHARGED. THESE INSTRUCTIONS ARE PROVIDED FOR USE ONLY BY COMPETENT TECHNICAL PERSONNEL. DO NOT UNDERTAKE ANY SERVICE ...
MAX3453E–MAX3456E ±15kV ESD-Protected USB Transceivers General Description Features
MAX3453E–MAX3456E ±15kV ESD-Protected USB Transceivers General Description Features

... The MAX3453E–MAX3456E ±15kV ESD-protected USBcompliant transceivers interface low-voltage ASICs with USB devices. The devices fully comply with USB 1.1 and USB 2.0 when operating at full (12Mbps) and low (1.5Mbps) speeds. The MAX3453E–MAX3456E operate with VL as low as +1.65V, ensuring compatibility ...
CD4067 CD4097
CD4067 CD4097

... independent of the address or inhibit signal transition time, if the transition time is less than 1 - 2µs. When the inhibit signal turns a channel off, there is no charge dumping to VSS. Rather, there is a slight rise in the channel voltage level (65mV typ.) due to capacitive coupling from inhibit i ...
FZT558 Features Mechanical Data
FZT558 Features Mechanical Data

... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
VI. Wye-Broken-Delta Vt, Ground Overvoltage Protection
VI. Wye-Broken-Delta Vt, Ground Overvoltage Protection

... 60 Hz residual voltage and residual current to operate these relays. Even if fault current magnitudes for ground faults close to the neutral point are negligible in causing any immediate damage, potential severe damage can be caused from a second fault, especially when the first fault is near the ne ...
Episode 126 - Teaching Advanced Physics
Episode 126 - Teaching Advanced Physics

... Before showing students this demonstration, they should be aware of current as a flow of charge in a circuit and have tackled some of the problems involving the calculation of charge and the use of Q = I t. They might be shown initially what happens when the capacitor is charged without changing the ...
Calibration of Phasor Measurement Unit at NIST
Calibration of Phasor Measurement Unit at NIST

... As stated above the analysis algorithms used for the modulation tests depend on the frequency of the signal modulation. For modulations below about 1 Hz a Taylor expansion algorithm is used [7]. The fitting functions used in this algorithm include the sine and cosine functions for the nominal signal ...
NRG 10A
NRG 10A

MAX3058/MAX3059 5V, 1Mbps, Low Supply Current CAN
MAX3058/MAX3059 5V, 1Mbps, Low Supply Current CAN

Remote Thermal Sensor
Remote Thermal Sensor

... the negative temperature coefficient of a diode, measuring the base emitter voltage (VBE) of a transistor operated at constant current. However, this technique requires calibration to null the effect of the absolute value of VBE, which varies from device to device. The technique used in the ADT7461A ...
FMMT560 Features Mechanical Data
FMMT560 Features Mechanical Data

... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
DAC8554 数据资料 dataSheet 下载
DAC8554 数据资料 dataSheet 下载

... output, digital-to-analog converter (DAC), offering low-power operation and a flexible serial host interface. It offers monotonicity, good linearity, and exceptionally low glitch. Each on-chip precision output amplifier allows rail-to-rail output swing to be achieved over the supply range of 2.7V to ...
< 1 ... 119 120 121 122 123 124 125 126 127 ... 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