• 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
μ PC4572MF-DAA  Data Sheet
μ PC4572MF-DAA Data Sheet

DAC900 数据资料 dataSheet 下载
DAC900 数据资料 dataSheet 下载

... The DAC900 has a high impedance (200kΩ) current output with a nominal range of 20mA and an output compliance of up to 1.25V. The differential outputs allow for both a differential or singleended analog signal interface. The close matching of the current outputs ensures superior dynamic performance i ...
Performance Characteristics of Inverter Controlled Three Phase
Performance Characteristics of Inverter Controlled Three Phase

... motor to achieve the aims of variable speed operation [10]. Both voltage source inverters and current source inverters are used in adjustable speed AC drives. The most common AC drives today are based on sinusoidal pulse-width modulation SPWM. However, voltage source inverters with constant volts/He ...
as a PDF - University of Hertfordshire
as a PDF - University of Hertfordshire

... N RECENT years, field programmable analog arrays (FPAAs) have received great interest, as they can achieve benefits in analog circuit and system design as field programmable gate arrays (FPGA) have in the digital counterpart. There have been some programmable analog circuits in the literature [1]–[8 ...
Classic • Neptune - Eclipse Lighting Inc.
Classic • Neptune - Eclipse Lighting Inc.

HMC854LC5
HMC854LC5

Voltage Drop - Adams Electric Cooperative
Voltage Drop - Adams Electric Cooperative

... equipment to lock up or suddenly power down resulting in data loss, increased cost and possible equipment failure. Resistive loads (heaters, incandescent lighting) that operate at under-voltages simply will not provide the expected rated power output. In the fine print notes of Section 210.19(A)(1) ...
MAX16946/MAX16947 Remote Antenna, Current-Sense and LDO/Switches EVALUATION KIT AVAILABLE
MAX16946/MAX16947 Remote Antenna, Current-Sense and LDO/Switches EVALUATION KIT AVAILABLE

... The MAX16946/MAX16947 high-voltage, high-side, current-sense LDO/switches feature internal current limiting to prevent system damage due to fault conditions. The MAX16946 provides a fixed regulated 8.5V output voltage or an adjustable 3.3V to 15V output voltage. The MAX16946 can also be configured a ...
Delphi DNM, Non-Isolated Point of Load
Delphi DNM, Non-Isolated Point of Load

... DC/DC Power Modules: 2.8-5.5Vin, 0.75-3.3V/10Aout The Delphi Series DNM, 2.8-5.5V input, single output, non-isolated Point of Load DC/DC converters are the latest offering from a world leader in power system and technology and manufacturing ― Delta Electronics, Inc. The DNM04 series provides a progr ...
User`s Guide 150 Watt Stereo Guitar Amplifier
User`s Guide 150 Watt Stereo Guitar Amplifier

... a powerful performer: extreme portability! (The PowerBlock even comes with its own padded travelling bag, which can be carried or slung on your shoulder, and even fits neatly into the semi-open back design of Crate’s GT112SL speaker cabinet.) The PowerBlock is housed in a light weight but virtually ...
CEREC 3 Acquisition Unit EPD Technical Data - Sirona
CEREC 3 Acquisition Unit EPD Technical Data - Sirona

ρ π ρ
ρ π ρ

... Only positive charge can be left on Q that originates from positive charge on P. The total charge will be redistributed between Q and P according to their capacitances. ...
FDD6680AS 30V N-Channel PowerTrench SyncFET
FDD6680AS 30V N-Channel PowerTrench SyncFET

... Thermal characterization performed using the conditions described in Note 1b. Transient thermal response will change depending on the circuit board design. ...
Current Mode Compensation Article
Current Mode Compensation Article

... condition for slope compensation, is pursued in section IV. Section V provides insight into the compensator transfer function using an error amplifier with finite gain-bandwidth characteristic. The reader solely interested in current-mode control loop compensation can read the abridged version of th ...
exemplars and commentary
exemplars and commentary

... Student 6: High Not Achieved ...
A current-saving match-line sensing scheme for
A current-saving match-line sensing scheme for

... 0.13µm CMOS process. Figure 17.3.1 shows a general CAM architecture where searchlines (SL) run perpendicular to MLs. The search data is presented to the SLs which are connected bit-by-bit to all the words stored in the memory. A NAND-based ML architecture is well known [4] for its low power consumpt ...
Square Body Flush End
Square Body Flush End

... Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been ...
Student Handout #5
Student Handout #5

... away from sun Outdoors in shade of tree or building 6) Compare your values in tables two and three to your values in table one. Write an observation about how the two different wiring methods changed or did not change values for each of the three units. ...
circuit models of sensory transduction in the cochlea
circuit models of sensory transduction in the cochlea

Multilingual Collaboration in SharePoint 2013
Multilingual Collaboration in SharePoint 2013

... The Fast storage oscilloscopes enhance the speed with which they can capture transient information by using [02S05] a. amplifier at two plates b. two storage meshes c. variable persistence tubes d. bistable storage tube ...
Electrical Behavior of a New Gallium Arsenide Power Schottky Diode
Electrical Behavior of a New Gallium Arsenide Power Schottky Diode

JUNG TRICK - Electronotes
JUNG TRICK - Electronotes

... This note suggests that you can, however, use series connected resistors to collect the currents with two op-amps. For example, you can form a pair of VCAs or a voltagecontrolled cross fader. Things like that. ...
AP Physics 1 Student Sample Question 4
AP Physics 1 Student Sample Question 4

BDTIC www.BDTIC.com/infineon ® Datasheet,Version 2.1, August 30, 2011
BDTIC www.BDTIC.com/infineon ® Datasheet,Version 2.1, August 30, 2011

... to a sudden load increase. The up/down counter value is also reset to 1 at the start-up time, to ensure an efficient maximum load start up. Figure 5 shows some examples on how up/down counter is changed according to the feedback voltage over time. The use of two different thresholds VFBZL and VFBZH ...
MAX16935 36V, 3.5A, 2.2MHz Step-Down Converter with 28µA Quiescent Current General Description
MAX16935 36V, 3.5A, 2.2MHz Step-Down Converter with 28µA Quiescent Current General Description

... Synchronization Input. The device synchronizes to an external signal applied to FSYNC. Connect FSYNC to AGND to enable skip mode operation. Connect to BIAS or to an external clock to enable fixed-frequency forced PWM mode operation. Resistor-Programmable Switching Frequency Setting Control Input. Co ...
< 1 ... 1153 1154 1155 1156 1157 1158 1159 1160 1161 ... 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