• 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
Resistors in Parallel and Series 2 Series and Parallel Circuits
Resistors in Parallel and Series 2 Series and Parallel Circuits

... blow the meter fuse. Record the measured resistances in a table like the one below. b. Then wire one resistor to a power supply set on about 3 volts as shown below. Measure and record the current and voltage. Calculate the resistance using V=IR. Record this in the “powered” column. Repeat with each ...
Kingsine Electric Automation Co., Ltd.
Kingsine Electric Automation Co., Ltd.

EVD-R Capacitive Voltage Indicator
EVD-R Capacitive Voltage Indicator

Logic: From Greeks to philosophers to circuits. COS 116 3/14/2005
Logic: From Greeks to philosophers to circuits. COS 116 3/14/2005

UMS-2000-A16-G 数据资料DataSheet下载
UMS-2000-A16-G 数据资料DataSheet下载

... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
LESSON
LESSON

... volts, can be either positive or negative. The voltage of the circuit passes through zero at t  1, 2, and 7 seconds. Write the simplest polynomial describing the voltage V(t). ...
IV Characteristics
IV Characteristics

... Georg Simon Ohm (16 March 1789 – 6 July 1854) was a German Scientist who performed a similar experiment to the investigation you've just conducted. He concluded, that for a fixed resistor there is a relationship between Resistance (R), Voltage (V) and Current (I). ...
CN-0161
CN-0161

... (RAW = 20 kΩ version) is ±3 mA, which limits the maximum input voltage, VIN, based on the circuit gain as described in ...
ppt
ppt

... Hi = 10, Low = 5, Average = 9.45, Deviation = 0.85 Lowest Figure of Merit A = 0.51, B = 1.18, C = 0.24, D = 0.30 ...
The Power Diode
The Power Diode

... Power Diodes have much larger PN-junctions resulting in a high forward current capability, typically up to several hundred amps. Since the power diode has a large PN-junction, it is not suitable for high frequency applications but special and expensive high frequency, high current diodes are availab ...
Abstract - 1000kv technologies
Abstract - 1000kv technologies

... of the input ac voltage. The Bridge rectifier circuit is shown in the figure. The circuit has four diodes connected to form a bridge. The ac input voltage is applied to the diagonally opposite ends of the bridge. The load resistance is connected between the other two ends of the bridge. For the posi ...
MT-081 TUTORIAL  RMS-to-DC Converters
MT-081 TUTORIAL RMS-to-DC Converters

... Figure 4: The AD536A Monolithic RMS-to-DC Converter It is subdivided into four major sections: absolute value circuit (active rectifier), squarer/divider, current mirror, and buffer amplifier. The input voltage VIN, which can be ac or dc, is converted to a unipolar current, I1, by the absolute value ...
A minimalistic hi-efficiently regulated DC/DC Step
A minimalistic hi-efficiently regulated DC/DC Step

Presentación de PowerPoint - cei@upm
Presentación de PowerPoint - cei@upm

Item # 65606, Model TL-6500ESD Series Value
Item # 65606, Model TL-6500ESD Series Value

... • Automatically stops when pre-set torque is reached • Balanced ergonomic design • Exceptionally lightweight: 11.5 oz. • Reduced vibration and noise • Low voltage DC operation • Double insulated ...
the Enclosed DC Drives product datasheet.
the Enclosed DC Drives product datasheet.

Safety / Intro
Safety / Intro

... • Connected to casing of metal appliances • If live wire touches the casing ‘ current flows through earth wire to ground ( often via the water pipes ) • A large current flows , blowing the fuse and isolating the appliance from the high voltage mains. ...
Analyser Units 1651 / 1681 176 HR-1651 HR-1681
Analyser Units 1651 / 1681 176 HR-1651 HR-1681

... corresponding direct current and voltage outputs from the PLM signals. Input and output circuits are galvanically isolated from each other. This allows the further connection of non-Ex protected devices without the need for an ...
SQUARE ROOT EXTRACTOR - Measurement Technologies, Ltd
SQUARE ROOT EXTRACTOR - Measurement Technologies, Ltd

Op amp - schoolphysics
Op amp - schoolphysics

... The circuit in Figure 5 has been suggested for the detector unit which monitors the amount of moisture in the soil. The moisture level will determine the resistance between the probes. The power supply connections to the op amp are not shown. (a) With the variable resistor R set at its midpoint posi ...
Resistance of a wire - The Thomas Cowley High School
Resistance of a wire - The Thomas Cowley High School

IBM Presentation - Rochester Institute of Technology
IBM Presentation - Rochester Institute of Technology

MSE-630 Lecture 4 Semiconductor theories
MSE-630 Lecture 4 Semiconductor theories

Opto Pulse Optical Output
Opto Pulse Optical Output

... OD 07-24 S with 1 pulse output and flow direction signal ...
Thermostat Circuit Worksheet
Thermostat Circuit Worksheet

... If the voltage is above 200 the LED should be off If the LED is on, one or more of your resistances is incorrect or in the wrong place. Double-check the resistor placements and values found in Figure 1 and Table 1 respectively. If the voltage is below 200 the LED should be on If the LED is not on, ...
< 1 ... 2089 2090 2091 2092 2093 2094 2095 2096 2097 ... 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