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Tutorial : Operational Amplifiers / Comparators
Tutorial : Operational Amplifiers / Comparators

... power supply terminal (VEE terminal) without characteristic deterioration and destruction of internal circuit. Figure 2.1.1 shows an example of power supply voltage that can be applied to op-amp/comparator with rated power supply voltage 36V. Rated power supply voltage indicates the voltage between ...
EIS Troubleshooting Guide - Grand Rapids Technologies
EIS Troubleshooting Guide - Grand Rapids Technologies

PIN Limiter Diodes in Receiver Protectors
PIN Limiter Diodes in Receiver Protectors

... receiver. The receiver must be capable of reliably detecting and processing very weak reflected signals, so it has a sensitive, low noise amplifier (LNA) at its input, although some receivers apply the received signal directly to the input of a downconverter mixer. Both of these circuit blocks emplo ...
Motion from electricity (The motor effect)
Motion from electricity (The motor effect)

... secondary coil both wound on a soft iron core as you can see from the diagram. If an ac. voltage is applied to the primary coil then this will produce a changing magnetic field in the iron core. This then induces an alternating voltage in the secondary coil. Remember that you will only get a voltage ...
PESC05_Full_Bridge - Faculdade de Engenharia
PESC05_Full_Bridge - Faculdade de Engenharia

... This paper described single stage high power factor electronic ballast for high pressure sodium lamps. This ballast presents a very low cost because it avoids an external PFP. The phenomenon of the acoustic resonance was not observed. A very high power factor was obtained. The crest factor found was ...
FAULT CURRENT LIMITERS – PRINCIPLES AND APPLICATION
FAULT CURRENT LIMITERS – PRINCIPLES AND APPLICATION

A functional model of silicon carbide JFET and its
A functional model of silicon carbide JFET and its

... While SiC MOSFET and SiC IGBT are difficult to fabricate at the present time, SiC JFET is easier to manufacture. Therefore, of all SiC power transistors currently under development (e.g., MOSFETs, JFETs, BJTs, IGBTs), SiC JFETs have the greatest potential for near-term real world applications. With ...
CY7C106D/CY7C1006D, 1-Mbit (256 K × 4) Static RAM
CY7C106D/CY7C1006D, 1-Mbit (256 K × 4) Static RAM

... 1. For guidelines on SRAM system design, please refer to the ‘System Design Guidelines’ Cypress application note, available on the internet at www.cypress.com. ...
Thevenin Equivalents, Adjoint Equivalents and
Thevenin Equivalents, Adjoint Equivalents and

... using the power flow equations, knowing that their interest is not usually in the solution of all currents and voltages, but the current and voltage of a small part of the network. So, given the need to improve the speed of calculations of these systems, it is convenient to be able to replace much o ...
LPC1768 Short Slides ece362_lpc1768
LPC1768 Short Slides ece362_lpc1768

Masters Thesis
Masters Thesis

... my commitment as an undergraduate and honoring me with this graduate position and research assistantship; for his guidance, support, and patience, in mentoring me towards the completion of this research and the largest project of my life. His work ethic, humor, and emphasis on the little things in l ...
Numerical Analysis of Compound Semiconductor RF Devices
Numerical Analysis of Compound Semiconductor RF Devices

... task that can be significantly supported by device simulation. While DC simulation is sufficient for optimization of breakdown voltages, turn-on voltages, or leakage currents, AC simulation is required for speed, noise, and power issues. There are several challenges which are specific for modeling a ...
Instruction Manual
Instruction Manual

... EXTERNAL and press the ISO TEST/LIFT GND (5) switch to ISO TEST. This will apply isolated line voltage between the two sides, and the meter (8) will display the isolation current that flows directly in microamperes (µA). Actual method for making connection to either side of the isolation barrier wil ...
LM120QML Series 3-Terminal Negative
LM120QML Series 3-Terminal Negative

... The LM120 needs only one external component—a compensation capacitor at the output, making them easy to apply. Worst case specifies on output voltage deviation due to any combination of line, load or temperature variation assure satisfactory system operation. Exceptional effort has been made to make ...
Optimizing IP3 and ACPR Measurements
Optimizing IP3 and ACPR Measurements

... modulated signal versus power emitted into an adjacent channel. In order to measure ACPR, one must provide the device under test (DUT) with a modulated stimulus – or in the case of a DAC – internally generate a modulated signal on the DUT itself. ...
Dual HDMI Fast Switching Receiver with 12-Bit, 170 MHz
Dual HDMI Fast Switching Receiver with 12-Bit, 170 MHz

... The ADV7842 incorporates a dual input HDMI 1.4-compatible receiver that supports all HDTV formats up to 1080p and display resolutions up to UXGA (1600 × 1200 at 60 Hz). The ADV7842 incorporates Xpressview™ fast switching on both input HDMI ports. Using the Analog Devices, Inc., hardwarebased HDCP en ...
Distribution High Impedance Fault Location Using Localized Voltage
Distribution High Impedance Fault Location Using Localized Voltage

... due to a downed line could also be utilized to detect the fault as well [2]. Nonetheless, this technique is limited by the lack of available measurements. The distribution system is usually only monitored at the substation end of lines, not offering much information on the remaining parts of the net ...
Negative-Sequence Impedance Directional Element
Negative-Sequence Impedance Directional Element

... gives a negative-sequence impedance which is positive and a forward fault gives a negativesequence impedance which is negative, Z2R is always set more positive than Z2F. For practically every application, Z2F can be set for ½ the positive-sequence impedance of the line and Z2R can be set equal to Z2 ...
open switch fault diagnosis in three phase inverter using
open switch fault diagnosis in three phase inverter using

Laboratory Manual - Mohawk Valley Community College
Laboratory Manual - Mohawk Valley Community College

... Application, due in 2017. It is intended for use in introductory semiconductor devices courses and is appropriate for two and four year electrical engineering technology curriculums. The manual contains sufficient exercises for two 15 week courses using a two to three hour practicum period. It assum ...
Low-cost universal Motor Drive using Kinetis L MCUs
Low-cost universal Motor Drive using Kinetis L MCUs

A.C. Chow and D.J. Perreault, “Design of an Active Ripple Filter using Voltage Injection,” 2001 IEEE Power Electronics Specialists Conference , Vancouver, Canada, June 2001, pp. 390-397.
A.C. Chow and D.J. Perreault, “Design of an Active Ripple Filter using Voltage Injection,” 2001 IEEE Power Electronics Specialists Conference , Vancouver, Canada, June 2001, pp. 390-397.

... cancels or suppresses the low-frequency ripple components that are most difficult to attenuate with a passive low-pass filter. This approach permits a substantial reduction in the passive filter size, with potential benefits in converter size, weight, and cost. Active filters may be characterized by ...
II. Principle of HVDC Transmission System
II. Principle of HVDC Transmission System

... Abstract— - Most of the high voltage transmission in the world is in the form of high voltage alternating current (HVAC). Since the development of the transformer, AC power can be generated, transmitted, distributed and used at different and convenient voltages. However, with the proper equipment, A ...
Designing a Three Phase Inverter for a Permanent Magnet Synchronous Motor
Designing a Three Phase Inverter for a Permanent Magnet Synchronous Motor

... studied to understand how the motor can be controlled with a three phase inverter. The schematics, the design of drivers and safety features for the switching elements in the inverter are shown. The software to control the inverter and to communicate with other devices in a car to obtain the informa ...
Aalborg Universitet Secondary Control for Voltage Quality Enhancement in Microgrids
Aalborg Universitet Secondary Control for Voltage Quality Enhancement in Microgrids

... control power flow and also to compensate the voltage unbalance. This two-inverter structure can be unattractive considering the cost and volume of the DG interface converter. In addition, it should be noted that the methods presented in [3]-[8] are designed to enhance voltage quality at the DG term ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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