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439QS16GE - Hittite Microwave Corp.
439QS16GE - Hittite Microwave Corp.

ACS754xCB-050 - Allegro MicroSystems
ACS754xCB-050 - Allegro MicroSystems

... Sensitivity (Sens). The change in device output in response to a 1 A change through the primary conductor. The sensitivity is the product of the magnetic circuit sensitivity (G / A) and the linear IC amplifier gain (mV/G). The linear IC amplifier gain is programmed at the factory to optimize the sen ...
TEP Ohm`s law with Cobra4 Mobile
TEP Ohm`s law with Cobra4 Mobile

AAR Analog Input to Two High and Low Trip Level Relay Outputs
AAR Analog Input to Two High and Low Trip Level Relay Outputs

... Note: If the first board is to receive a 0-20 mA signal, then any attached boards must be set at the 0-12 VDC signal mode t o operate correctly! If the input signal is voltage, then set attached boards to same voltage as the first board. Up to 6 boards may be cascaded from same power supply. More ca ...
IEEE`s Hands on Practical Electronics (HOPE)
IEEE`s Hands on Practical Electronics (HOPE)

... • Calculating V using Ohm’s Law: • Example: – Calculate the voltage across RT if • IT = 5 mA • RT = 1000 W Using Ohm’s Law, VT = IT * RT VT = (0.005 A)*(1000 W ) VT = 5 Volts ...
TA preparation Circuit lab
TA preparation Circuit lab

25V, 2A, PNP Bipolar Transistor, SOT-89
25V, 2A, PNP Bipolar Transistor, SOT-89

... In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of ...
Document
Document

... (iii) It is not necessary to use the input coupling capacitor in the BJT’s differential amplifier, since the differential pair input can reject the differential mode input. (iv) The right side figure present a Series-Shunt feedback amplifier, the feedback network has to represent in inverse hybrid g ...
Gain Block Active Bias Circuit AN035
Gain Block Active Bias Circuit AN035

... the active bias circuit to supply room temperature device voltages of at least the 4.3 Volt upper limit. An additional constraint on devicePreliminary voltage is temperature variation @ 60 mA, shown also on page 7. The graph shown was taken from a sample device and indicates an average Vd temperatur ...
ACS754xCB-130 - Allegro Microsystems
ACS754xCB-130 - Allegro Microsystems

... The products described herein are manufactured under one or more of the following U.S. patents: 5,619,137; 5,621,319; 6,781,359; 7,075,287; 7,166,807; 7,265,531; 7,425,821; or other patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the de ...
File - the Analysis of Electrical Engineering ELEC 291
File - the Analysis of Electrical Engineering ELEC 291

... current and voltage source to make one equivalent voltage source. Treat the 6.4Ω resistor as the load resistor. Draw the resulting circuit indicating the voltage source value and the resulting internal impedance attached to the 6.4Ω load resistor. ...
Senior Design 4006C Group G7 Final Report
Senior Design 4006C Group G7 Final Report

Lab02_PartB - Weber State University
Lab02_PartB - Weber State University

The Potentiostat and the Voltage Clamp
The Potentiostat and the Voltage Clamp

... clamp arrangements that can influence the measurements of high-speed signals.6 The stability of the cell/feedback loop in controlling the potential may also be an issue. In the case of potentiostatic measurements, this was examined in terms of classical control-system theory in the 1960s and 1970s,7 ...
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2b) Electronic Parts - Department of Agricultural and Biological

... Filter, for instance to remove noise. Block DC components in signals ...
Series A dV/dt Filters
Series A dV/dt Filters

... PRODUCT SELECTION: See MTE dV/dt Filter Selection Brochure or visit the MTE website at www.mtecorp.com for complete product selection. Please note that Series A dV/dt Filters can only be used with PWM inverters with switching frequencies between 900Hz and 8kHz. BASIC SPECIFICATION RANGES - The dV/dt ...
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doc - STAO

... - ONE bulb, the voltage drop across the bulb is about ____ the voltage drop across the source - TWO identical bulbs, the voltage drop across each bulb is about ____ the voltage drop across the source. ...
Susceptibility of Integrated Circuits to RFI: Analysis of PWM
Susceptibility of Integrated Circuits to RFI: Analysis of PWM

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Digital Intro

... • An ideal opamp has open-loop (no feedback) gain A= • More realistically, it is typically ~105-106 at DC, dropping to 1 at frequency, fT=1-10 MHz • The opamp also introduces a phase shift between input and output • At high frequencies, as the open-loop gain approaches 1, the phase shift increases ...
abstract - Engineering For Change
abstract - Engineering For Change

... This circuit is configured in astable mode of operation, which is basic oscillator circuit using a 555 type of timer. The circuit is also sometimes referred to as a free running oscillator, with the oscillation frequency given by f=1.46/((Ra +2Rb)*c). Initially, capacitor C charged towards 2/3 V + v ...
High Input Impedance Precision DC Summing Amplifier
High Input Impedance Precision DC Summing Amplifier

... currents to the operational amplifier must be significantly lower than the lowest input signal currents available so that the accuracy of the summing amplifier is preserved. In this example, a 10Mohm resistor is used as a basic summing amplifier input resistor. To determine an input signal resolutio ...
Mutant Bassdrum - Control Voltage
Mutant Bassdrum - Control Voltage

... The clean bassdrum signal appears at this output. This is a modular level output and can produce very HOT signals (up to 20V peak-to-peak). The ENV indicator LED beside it will light along with the intensity of the bassdrum sound you are generating. PITCH CONTROL The bassdrum’s fundamental frequency ...
Electricity Notebook
Electricity Notebook

Frequently Asked Basic Electronics Interview Questions and
Frequently Asked Basic Electronics Interview Questions and

Summary Lecture 12
Summary Lecture 12

... A changing magnetic flux generates an induced voltage (emf = electromotive force)  = (ABcos )final – (ABcos )initial V = [emf] = - N  / t ...
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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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