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Offset Error
Offset Error

Interface Circuits Word Document
Interface Circuits Word Document

... CMOS and TTL logic circuits. The chart below briefly compares the capabilities of the TTL and CMOS families of IC. Correct interfacing will ensure successful completion of your practical project if it involves these families of logic gates. ...
11. DC/AC Inverters (optional) - CleanEnergy Solutions International
11. DC/AC Inverters (optional) - CleanEnergy Solutions International

CSS - CBSE Guess
CSS - CBSE Guess

... Q.1> What is Biot-Savart law? Using it derive the magnetic induction on the axis of a current carrying coil. Q.2> A charged particle ( mass : m & charge : q ) enters a magnetic field B with a velocity V at an angle of θ. What kind of path does the particle describe? Derive a.> Time period b.> Freque ...
µ OPA348 OPA2348 OPA4348
µ OPA348 OPA2348 OPA4348

Transistors and Semiconductors
Transistors and Semiconductors

Structural analysis of electrical circuits including magnetoquasistatic
Structural analysis of electrical circuits including magnetoquasistatic

... subcircuits. That is, these devices are modeled via equivalent circuits containing only basic elements. Most often, the set-up of equations uses modified nodal analysis (MNA), which we also employ. Today, chip technology develops rapidly and the complexity of the above mentioned devices grows fast ...
LP339 数据资料 dataSheet 下载
LP339 数据资料 dataSheet 下载

... and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s te ...
Data Sheet (current)
Data Sheet (current)

... 0˚≤TJ≤+100˚C for the LM35D. VS =+5Vdc and ILOAD =50 µA, in the circuit of Figure 2. These specifications also apply from +2˚C to TMAX in the circuit of Figure 1. Specifications in boldface apply over the full rated temperature range. Note 2: Thermal resistance of the TO-46 package is 400˚C/W, juncti ...
Modeling, Control and Implementation of a Lithium
Modeling, Control and Implementation of a Lithium

... Lithium-ion battery modeling Due to the low lithium-ion cell voltage (3.3V), to use this component as energy storage device in EV, it is necessary to connect several cells in series and/or in parallel to obtain a high energy storage level[10][11]. In this paper 25-cells with capacity of 40AH are con ...
NATIONAL SEMICONDUCTOR (LM35DZ/NOPB) PREC
NATIONAL SEMICONDUCTOR (LM35DZ/NOPB) PREC

... 0˚≤TJ≤+100˚C for the LM35D. VS =+5Vdc and ILOAD =50 µA, in the circuit of Figure 2. These specifications also apply from +2˚C to TMAX in the circuit of Figure 1. Specifications in boldface apply over the full rated temperature range. Note 2: Thermal resistance of the TO-46 package is 400˚C/W, juncti ...
Direct Current Circuits
Direct Current Circuits

... 100A for a few seconds in order to turn the starter motor of a car. ...
English Translation
English Translation

TPS62000 数据资料 dataSheet 下载
TPS62000 数据资料 dataSheet 下载

... converter enters a power save mode (pulse frequency modulation) to keep the efficiency high. In the PWM mode operation, the part operates at a fixed frequency of 750 kHz. At the beginning of each clock cycle, the high side P-channel MOSFET is turned on. The current in the inductor ramps up and is se ...
II3514551462
II3514551462

MAX8597/MAX8598/MAX8599 Low-Dropout, Wide-Input-Voltage, Step-Down Controllers General Description
MAX8597/MAX8598/MAX8599 Low-Dropout, Wide-Input-Voltage, Step-Down Controllers General Description

... The MAX8597 is available in a 20-pin thin QFN package and is designed for applications that use an analog signal to control the output voltage with an adjustable offset, such as DC fan-speed control. This is achieved with an internal uncommitted operational amplifier. The MAX8597 is also targeted fo ...
ncp1651 - Single Stage Power Factor Controller
ncp1651 - Single Stage Power Factor Controller

CIRCUITS LABORATORY EXPERIMENT 1
CIRCUITS LABORATORY EXPERIMENT 1

... of circuit elements. Suppose that we wish to measure the current IS without the use of an ammeter. One simple way to do this is with the circuit of Figure 1.7 (b), where a resistor Rmeas has been added in series between Vs and the Circuit and a voltmeter is used to measure the voltage across Rmeas. ...
Enlarge - Mouser
Enlarge - Mouser

Word Doc - Imagineering Ezine
Word Doc - Imagineering Ezine

... striking it. However, this unbiased current sourcing mode, or "photovoltaic" mode, is seldom used in through-the-air communications since it is less efficient and is slow in responding to short light flashes. The most common configuration is the "reversed biased" or "photoconductive" scheme. In the ...
AN5084, Hardware Design Guidelines for S12ZVL
AN5084, Hardware Design Guidelines for S12ZVL

ANSWERS
ANSWERS

BDTIC www.BDTIC.com/infineon  TLE4916-1K
BDTIC www.BDTIC.com/infineon TLE4916-1K

... Micro power design 2.4V to 5.0V operation High sensitivity and high stability of the magnetic switching points High resistance to mechanical stress by Active Error Compensation High ESD performance (± 4kV HBM) Digital output signal SMD package SC59 (SOT23 compatible) RoHS compliant (Pb free package) ...
ECP 11-0213 Transformer (and Reactor) Test
ECP 11-0213 Transformer (and Reactor) Test

General Description Features
General Description Features

... from the boost regulator. The boost output pulses because of the solar cells’ limited current. 6) Increase the ambient light source on the solar cells and observe the increase in frequency of pulses at the CHG test point. 7) To turn on the internal regulator and enable the battery pack output, pres ...
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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.
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