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Advanced xDSL Line Testing and Fault Location for
Advanced xDSL Line Testing and Fault Location for

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Electric Service Handbook

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Wiring Schematics and Circuit Testing

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... MWS, Modular Wiring Systems, provide low cost installation of branch circuit wiring for lighting and power. Using modular components that plug together, MWS can be installed in a fraction of the time of hardwiring. Plus, MWS offers the advantage of relocating fixtures and outlets in future renovatio ...
DBP Series vPD2
DBP Series vPD2

... Low energy and seemingly harmless transients can cause gradual degradation of the sensitive integrated circuits used in network interfaces and CCTV hardware. This will lead to the eventual failure of the equipment. At the other end of the scale are the high energy surges induced by lightning and dir ...
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CFE Generator Protection Guidelines for Setting 40 and 64G

... ground fault currents are common. Additionally, even if protective relays trip fast, fault currents are present for several seconds, causing major machine damage. This connection is usually limited to low-capacity generator applications and is not covered by the CFE guide. 3) Low-Impedance Grounding ...
MAX8896 Dual PWM Step-Down Converter in a 2mm x General Description
MAX8896 Dual PWM Step-Down Converter in a 2mm x General Description

... The feedback network is integrated reducing external component count and total solution size. OUT1 uses an analog input driven by an external DAC to control the output voltage linearly for continuous PA power adjustment. At high duty cycle, OUT1 automatically switches to bypass mode, connecting the ...
Atmel ATR4251C Low-noise, High-dynamic-range AM/FM Antenna Amplifier IC Features
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... Due to the long wavelength in AM bands, the antennas used for AM reception in automotive applications must be short compared to the wavelength. Therefore these antennas do not provide 50Ω output impedance, but have an output impedance of some pF. If these (passive) antennas are connected to the car ...
A HIGH PERFORMANCE FULLY DIFFERENTIAL PURE CURRENT
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... is built-up around the operational ICqOlc and ICqOlb. The signal is then fed to the 0 dBm fixed AF fier ICqOla, the output from which enters the output transformer on the INPUT FILTER circuit board. ...
BD9111NV
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... BD9111NV is a synchronous step-down switching regulator that achieves fast transient response by employing current mode PWM control system. It utilizes switching operation in PWM (Pulse Width Modulation) mode for heavier load, and operates in SLLMTM (Simple Light Load Mode) operation for lighter loa ...
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... source line and IC. This may cause bad effects on IC operations. In order to avoid this case, connect a bypass capacitor CIN across IN terminal and GND terminal of IC. 1µF or higher is recommended. In order to decrease voltage fluctuations of power source line to IC, connect a low ESR capacitor in p ...
AD8571,72,74 - Analog Devices
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... amplifiers. Using Analog Devices, Inc., topology, these zerodrift amplifiers combine low cost with high accuracy. (No external capacitors are required.) Using a spread-spectrum, auto-zero technique, the AD8571/AD8572/AD8574 eliminate the intermodulation effects from interaction of the chopping funct ...
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... inadequate to protect most of the equipment in a typical residence. This guide is intended to make more widely known the approaches required to protect modern electrical and electronic equipment in houses. While these surge protection recommendations are broadly applicable, the emphasis will be on s ...
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... The ICs have a high tolerance for capacitive loads. In unity-gain configuration, the op amps can typically drive up to 300pF pure capacitive load. Increasing the gain enhances the amplifier’s ability to drive greater capacitive loads. In unity-gain configurations, capacitive load drive can be improv ...
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TL1963A-Q1 数据资料 dataSheet 下载

... TL1963A-3.3), the SENSE pin is the input to the error amplifier. Optimum regulation is obtained at the point where the SENSE pin is connected to the OUT pin of the regulator. In critical applications, small voltage drops are caused by the resistance (RP) of PC traces between the regulator and the lo ...
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Ground loop (electricity)

In an electrical system, a ground loop is an equipment and wiring configuration which results in excessive unwanted current in a conductor connecting two points that are supposed to be at the same electric potential, often ground, but are actually at different potentials.Ground loops are a major cause of noise, hum, and interference in audio, video, and computer systems. They do not in themselves create an electric shock hazard, the inappropriate connections merely create a not necessarily very good instance of Electrical_bonding, which is explicitly required by safety regulations in certain circumstances. In any case the voltage difference between the ground terminals of each item of equipment is small. A severe risk of electric shock occurs when equipment grounds are improperly removed in an attempt to cure the problems thought to be caused by ground loops.
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