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Computer Aided Design
Computer Aided Design

... sweep. This is useful for finding the transfer function of an amplifier, the high and low thresholds of a logic gate, and so on. To calculate the DC response of an analog circuit, PSpice A/D removes time from the circuit. This is done by treating all capacitors as open circuits, all inductors as sho ...
Datasheet
Datasheet

... The CN61C series can be used to monitor battery’s voltage. The device consists of a comparator, a low current high precision voltage reference, voltage divider and output driver. It outputs a low level at RES pin whenever the VCC supply voltage declines below a preset threshold, and outputs high aft ...
200CR Conductivity/Resistivity Instrument Initial Set
200CR Conductivity/Resistivity Instrument Initial Set

... within a menu. Right arrow is used to move the cursor to the right within a menu. Each digit can be scrolled through the values: . (decimal point), 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. The first digit of each number can also be set to neg.(-) Following are the steps necessary to install a 200CR instrume ...
36.0-40.0 GHz GaAs MMIC Power Amplifier
36.0-40.0 GHz GaAs MMIC Power Amplifier

... Life Support Policy - Mimix Broadband's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President and General Counsel of Mimix Broadband. As used herein: (1) Life support devices or systems are devices or syste ...
Manual. - Artefacts
Manual. - Artefacts

... the synth is switched off, the power supply or the batteries are used to power the memory. Because the standby current is quite large the batteries are drained pretty fast and the user patches are lost. This also happens when you accidentally leave the synth on when it is powered with batteries. To ...
Measuring Impedance and Frequency Response of Guitar Pickups
Measuring Impedance and Frequency Response of Guitar Pickups

... by channel B of the oscilloscope. Ideally, Rmeas should be much larger than the maximum impedance of the pickup. However, for determining the resonant frequency of the pickup and the pickup inductance, it’s not critical. I used 56kΩ. Roughly speaking, the channel A voltage represents the current in ...
DC-DC Power Converters
DC-DC Power Converters

... converter, to obtain dc isolation between the converter input and output. For example, in off-line power supply applications, isolation is usually required by regulatory agencies. This isolation could be obtained by simply connecting a 50 Hz or 60 Hz transformer at the power supply ac input terminal ...
Publications/Presentations - Massachusetts Institute of Technology
Publications/Presentations - Massachusetts Institute of Technology

... required reliability while reducing distribution system planning cost. In last reporting period, I have shown that reconfiguration can provide larger contingency support neighborhood and thus save huge investment on transformers’ capacity and reduce the no-load loss of substations. A paper was publi ...
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Voltage Reference Circuits
Voltage Reference Circuits

... [8] K.N. Leung, P.K.T. Mok, “A CMOS Voltage Reference Based on Weighted ΔVGS for CMOS LowDropout Linear Regulators,” IEEE Journal of Solid State Circuits, vol. 38, pp. 146-150, January 2003. 低功率混合晶片設計實驗室 LAB 802 ...
Pinnacle® Plus+ Pulsed-DC Power Supplies
Pinnacle® Plus+ Pulsed-DC Power Supplies

... The Pulsed-DC Advantage Pulsed DC is the latest technology for reactive-sputtering applications requiring extremely uniform, high-quality films, combined with efficient production and lower upfront costs. The Pinnacle Plus+ pulsed-DC power supply’s technology offers an array of benefits, including: ...
Thyristors This worksheet and all related files are licensed
Thyristors This worksheet and all related files are licensed

... 1. Carefully measure and record all component values prior to circuit construction, choosing resistor values high enough to make damage to any active components unlikely. 2. Draw the schematic diagram for the circuit to be analyzed. 3. Carefully build this circuit on a breadboard or other convenient ...
Hybrid Multilevel Power Conversion System: A Competitive Solution for High-Power Applications
Hybrid Multilevel Power Conversion System: A Competitive Solution for High-Power Applications

NCP5006 Compact Backlight LED Boost Driver
NCP5006 Compact Backlight LED Boost Driver

... than the Over Voltage Protection threshold (OVP) the device comes back to shutdown mode. To restart the chip, one must either send a Low to High sequence on Pin EN, or switch off the Vbat supply. A capacitor must be used on the output voltage to avoid false triggering of the OVP circuit. This capaci ...
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... operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ...
Hall System for Measurement of Resistivity, Carrier Concentration
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... The HL5550 cryostat uses a horizontal, continuous flow, liquid nitrogen design It is normally evacuated in order to remove moisture, which may affect measurements. The cryostat fits neatly between the pole-pieces of the magnet and has a viewing window through which the HL5520 stereo microscope optio ...
control module - Siemens Industry, Inc.
control module - Siemens Industry, Inc.

... Service-friendliness like this can also be compact The Control Module distinguishes itself as a result of its space-saving design. A high degree of servicefriendliness is achieved with the compact packaging due to the fact that all of the individual components are easily accessible. Precise fit for ...
MT-035 TUTORIAL  Op Amp Inputs, Outputs, Single-Supply, and Rail-to-Rail Issues
MT-035 TUTORIAL Op Amp Inputs, Outputs, Single-Supply, and Rail-to-Rail Issues

... better performance than op amps using purely MOSFET or CMOS technology. While ADI and others make high performance op amps with MOS or CMOS input stages, in general these op amps have worse offset and drift, voltage noise, high-frequency performance than the precision bipolar counterparts. The power ...
News Release - ITWatchDogs
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Section 6: Electromagnetic Radiation
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... This is time dependent generalization of Bio-Savart law, to which it reduces in the static case. Equations (6.64) and (6.70) are know as Jefimenko’s equations. In practice Jefimenko's equations are of limited utility, since it is typically easier to calculate the retarded potentials and differentiat ...
TPA2000D1-Q1 数据资料 dataSheet 下载
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... Audio specialists have advised for years not to apply a square wave to speakers. If the amplitude of the waveform is high enough and the frequency of the square wave is within the bandwidth of the speaker, the square wave could cause the voice coil to jump out of the air gap and/or scar the voice co ...
Zhenxing_Wang-CLIC-20150129
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Potentiostat stability mystery explained - Bio
Potentiostat stability mystery explained - Bio

... 1,000,000 times the input difference voltage. In fact, this is true only for low frequency signals. A real control amplifier is made of real, hence imperfect, components. Therefore, it does not amplify in the same way as a low and a high frequency signal. It is natural to think that a slowly varying ...
R-EF-11: Stray Voltage Problems with Dairy Cows
R-EF-11: Stray Voltage Problems with Dairy Cows

Eaton 9390 UPS
Eaton 9390 UPS

... may even create frequencies other than the fundamental applied frequency (60 Hz). These frequencies (harmonics) occur in odd multiplies of 60 Hz. The degree of occurrence is called total harmonic distortion (THD). If the power source can’t respond to all frequencies demanded by the circuit, then fur ...
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Alternating current



Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).
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