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VsLb3940
VsLb3940

Minariks DC Drives - XP-DC Series - User Manual
Minariks DC Drives - XP-DC Series - User Manual

... This drive is isolated from earth ground. To prevent the risk of injury or fatality, avoid direct contact with the printed circuit board or with circuit elements. Do not disconnect any of the motor leads from the drive unless power is removed. Opening any one motor lead may destroy the drive. This d ...
Self-Consistent Time-DomainLarge-Signal Model of High
Self-Consistent Time-DomainLarge-Signal Model of High

... power and absorption through (18); thus, different small-signal operating conditions arise depending on the optical power absorbed along the device. The consequence of the uniform bias point assumption exploited in [3] on the predicted performance of the TW EAM will be discussed in detail in Section ...
KD-10 MHO UNITS CALIBRATION USING IN
KD-10 MHO UNITS CALIBRATION USING IN

Device circuit breakers
Device circuit breakers

... Also, the signaling always keeps the user up-to-date about the operating state of the system. The reset input can be used to remotely switch back on paths that have been switched off. ...
LHC Project Report 151 - Electrodynamics of Superconducting
LHC Project Report 151 - Electrodynamics of Superconducting

... normal distribution within 20% of the average. During a ramp the current will start to distribute according to the inductances and connection resistances. If the voltage would be measured on such a cable, different UI-relations would be found on different strands. The two extreme curves (for those s ...
GTL2009 3-bit GTL Front-Side Bus frequency comparator
GTL2009 3-bit GTL Front-Side Bus frequency comparator

... Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Section 10 “Recommended operating conditions” is not implied. Exposure to absolute-maximum-rated c ...
ECE 342 – Jose Schutt-Aine
ECE 342 – Jose Schutt-Aine

... an appropriate dc voltage at the drains of Q1 and Q2 is not shown. The following specifications are desired: differential gain Ad = 80V/V, IREF = 100 A, the dc voltage at the gates of Q6 and Q3 is +1.5V; the dc voltage at the gates of Q7, Q4 and Q5 is –1.5V. The technology available is specified as ...
LectNotes3-NodalAnalysis
LectNotes3-NodalAnalysis

field test guide
field test guide

... At 800 w/m2 irradiance (80% of STC irradiance), the module Isc is 7.75 A (80% of STC Isc): 9.58A × 0.8 = 7.75 A At 46°C Normal Operating Cell Temperature (NOCT) (listed under Thermal Characteristics) and an open circuit temperature coefficient (TCVOC) of -0.3%/°C, the module VOC is 36.1V: Change in ...
TB/TS Thermistor Room Temperature Sensor Data
TB/TS Thermistor Room Temperature Sensor Data

Session Eight:  Short Circuit Requirements and Selection of
Session Eight: Short Circuit Requirements and Selection of

The Bidirectional Control Thyristor (BCT)
The Bidirectional Control Thyristor (BCT)

MAX13041 ±80V Fault-Protected High-Speed CAN Transceiver with Low-Power Management and Wake-On CAN
MAX13041 ±80V Fault-Protected High-Speed CAN Transceiver with Low-Power Management and Wake-On CAN

... and allows communication at speeds up to 1Mbps. The extended fault-protected voltage range of ±80V on CAN bus lines allows for use in +12V or +42V automotive, and higher voltage +24V and +36V mid-heavy truck applications. Advanced power management features make the MAX13041 ideal for automotive elec ...
BQ24090 数据资料 dataSheet 下载
BQ24090 数据资料 dataSheet 下载

... The bq2409x series of devices are highly integrated Li-ion linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq2 ...
bq51013B Highly Integrated Wireless Receiver Qi
bq51013B Highly Integrated Wireless Receiver Qi

lab_manual_year_1 - Cornerstone Robotics
lab_manual_year_1 - Cornerstone Robotics

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BBC Bracket Instructions2

A 5-bit 5 Gs/s flash ADC using multiplexer-based
A 5-bit 5 Gs/s flash ADC using multiplexer-based

... In the designed ADC system, the comparator schematic shown in Figure 3 is chosen [10]. The transistor aspect ratios and critical DC bias voltages used in the comparator circuit are also given in Figure 3 and Table 1, respectively. In this circuit, M2 and M3 are the N-type metal-oxide-semiconductor ( ...
Technical Paper Revision 5 - Edge
Technical Paper Revision 5 - Edge

DESCRIPTION
DESCRIPTION

... In preparation for installing the Avtron SLAPTach™ Pulse Generator, it is first necessary to clean both the accessory motor shaft and the mounting face. These surfaces must be inspected and paint, burrs, and other surface imperfections removed. Coat the cleaned surfaces with a light grade of oil. Po ...


Simple DC Circuits
Simple DC Circuits

... are equivalent to a single resistor with resistance RT given by R T = R 1 + R2 The values of any number of resistors in series can also be added. Example 1 If two resistors of R1 = 3 Ω and R2 = 5 Ω are added in series, their total resistance is given by: RT = 3 + 5 = 8 Ω If a current of 4 A flows th ...
MOD I - SNGCE DIGITAL LIBRARY
MOD I - SNGCE DIGITAL LIBRARY

... The control circuit block in a static converter provides the electrical signals to perform the switching operations of the static switches. The control circuit often consists of low voltage electronic components such as analogue and digital integrated circuits, working from a low voltage power suppl ...
SN65EPT22 数据资料 dataSheet 下载
SN65EPT22 数据资料 dataSheet 下载

... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, 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 ...
< 1 ... 368 369 370 371 372 373 374 375 376 ... 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.
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