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SE207 Modeling and Simulation
SE207 Modeling and Simulation

... For the first set of values, connect the analog computer circuit on the GP-6 using one integrator. Set the Y/Pot-address to GND/X and mode selector to OPR. Select the output amplifier from the X-address, press OP button and monitor the output of the system Vc(t) Repeat step (4) and plot the output o ...
Operational Amplifiers
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... plane zero appears. Its value is given by z  g m5 Cc . To eliminate the problem a resistor in series with the compensation capacitor can be included. Then the formula for zero changes ...
NE555 555 Timer - West Florida Components
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Electric Potential Energy
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... Electrochemical cell A battery has two terminals called electrodes, one is negative, the other positive.  The electrodes are placed in an electrolyte: a substance (liquid or paste) that conducts electricity. ...
MAX1748/MAX8726 Triple-Output TFT-LCD DC-DC Converters General Description
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... The MAX1748/MAX8726 are highly efficient triple-output power supplies for TFT-LCD applications. These devices contain one high-power step-up converter and two lowpower charge pumps. The primary boost converter uses an internal n-channel MOSFET to provide maximum efficiency and to minimize the number ...
Lab 7 Manual: Bipolar Junction Transistor Characteristics
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... between the collector and the emitter. This amplification is so important that one of the most noted parameters of transistors is the dc current gain, β (or h FE), which is the ratio of collector current to base current: IC = β*IB. In designing an amplifier circuit using BJTs, there are several impo ...
Designing the Reliable Driver for the Latest 450A/1.2kV IGBT
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A Contrast Sensitive Silicon Retina with Reciprocal Synapses
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... one to trade-off resolution for enhanced signal-to-noise ratio, thereby revealing low-contrast stimuli in the presence of large transistor mismatch. In the vertebrate retina, gap junctions between photoreceptors perform this function [5]. At these specialized synapses, pores in the cell membranes ar ...
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FSQ100 Green Mode Fairchild Power Switch (FPS™) Features
FSQ100 Green Mode Fairchild Power Switch (FPS™) Features

... reduces the current through the opto-coupler LED, which also reduces the opto-coupler transistor current, thus increasing the feedback voltage (VFB). If VFB exceeds 3V, the feedback input diode is blocked and the 5µA current source (IDELAY) starts to charge CFB slowly up to VCC. In this condition, V ...
Name: ________________________________________ Code # _________    Summer Session ... ID: X
Name: ________________________________________ Code # _________ Summer Session ... ID: X

... R is out since the voltage drop across it is independent of frequency. L has AC reactance X L = ωL which goes up with increasing frequency, that is, it's AC "resistance" goes up and it therefore passes low frequencies and attenuates high ones. C has AC reactance X C = 1 / ωC which goes down with inc ...
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... In the world of dBmV, or “decibel millivolt,” the reference is 1 millivolt (mV). Wait a sec – a couple paragraphs back, I said the decibel expresses a ratio between two power levels, yet here I’ve tacked a voltage reference onto the decibel. When we use dBmV, we are indeed using the decibel to expre ...
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... AMS2501 can also be operated as a single supply device. In single supply operation the dropout will be determined by the minimum control voltage. Both the fixed and adjustable versions have remote sense pins, permitting very accurate regulation of output voltage at the load, rather than at the regul ...
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... PAM2303 employs internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 1µA. Other key features include overtemperature and short circuit protection, ...
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... The circuit Q-point values are stable against changes in β Advantage: The Q-point of voltage divider bias circuit is ...
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...  Almost all electronic equipements include a circuit that converts AC voltage of main supply into DC voltage. This part of the equipments is called power supply. In General, at the input of the power supply, there is a power transformer. A diode circuit called rectifier follows it. The output of th ...
Flyer - Engineers Australia
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... in mining, vocational education, distribution and transmission switchgear industry. Since 2006 Mira has been working as a sales manager of HV switchgear at the ABB Australia Power Grids. COST: EESA & EA members and current students are free (Student ID is required) ...
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CSP1-F Combined Protection and Control System Performance and
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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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