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Slash Rated Devices 1
Slash Rated Devices 1

... utilizing only one pole of the circuit breaker. What are the single-pole interrupting capabilities for overcurrent devices? Per ANSI C37.13 and C37.16, an airframe/power circuit breaker has a single-pole interrupting rating of 87% of its three-pole rating. Listed three-pole molded case circuit break ...
Transmission Lines Physics 623
Transmission Lines Physics 623

... Note that we assume here that the driver has a low output impedance and the receiving module has a high input impedance. [Be careful, the terms parallel termination and series termination are often mis-used. For example, one can buy “series terminations for SCSI busses on computers. Although these l ...
Section 5 High Speed PCB Layout Techniques
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Downlaod File - Prince Mohammad Bin Fahd University
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The PLH Amplifier By Nelson Pass Introduction
The PLH Amplifier By Nelson Pass Introduction

... comes from the lower device Q2. Fully counter-clockwise results in the upper transistor bank functioning as a constant current source, with all the gain in the lower bank, operating as a purely single-ended Class A circuit. An 80% clockwise rotation of P2 gives about a 1:1 ratio between the devices ...
Digital Ground Resistance Tester Models 4620 & 4630
Digital Ground Resistance Tester Models 4620 & 4630

... The Ground Resistance Tester Models 4620 and 4630 are rugged, easy-to-use instruments ideal for maintenance crews performing numerous tests. Both models exceed mechanical and safety specifications for shock, vibration and drop tests called out in IEC standards. They are designed to reject high level ...
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... C. In order to get a good approximation of the Fourier series for the displayed signal, it will be necessary to decrease the vertical scale, i.e. fewer volts per division such that the peaks of the signal extend beyond the screen limits in order to minimize the effects of ...
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Encoder 101: Selecting the Right Output

The Intersil ICL7107 is high performance Included are seven
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... This pin is included primarily to set the common mode voltage for battery operation (ICL7106) or for any system where the input signals are floating with respect to the power supply. The COMMON pin sets a voltage that is approximately 2.8V more negative than the positive supply. This is selected to ...
Encoder 101: Selecting the Right Output
Encoder 101: Selecting the Right Output

... As the name implies, this kind of output chip sources or “drives” current down the line. Unlike the open collector outputs, line driver chips actively force the output high or low, therefore being able to both sink and source current from the load (See Figure 2). The main advantage of the line drive ...
Duality - Universal College of Engineering & Technology
Duality - Universal College of Engineering & Technology

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Amateur Radio Technician Class Element 2 Course Presentation

... so that it can be switched out of the circuit when running high power B. Include a series switch in the ground line of each protector to prevent RF overload from inadvertently damaging the protector C. Keep the ground wires from each protector separate and connected to station ground D. Ground all o ...
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DC059 - LTC1174 Evaluation Kit Quick Start Guide
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... configured for this application. The peak-to-peak output ripple is reduced to 40mV over the entire load range. A toroidal surface mount inductor is chosen for its excellent self-shielding properties. Open magnetic structures such as drum and rod cores are to be avoided since they inject high flux le ...
Operating instructions - ACS-Control
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... The signal cable should be installed separated from power leading wires. For inauguration it is suggested, to deactivate all connected control devices, to avoid unwanted control reactions. ...
to notes11 - Iowa State University
to notes11 - Iowa State University

... with concentric neutrals together with a separate neutral conductor. Neutrals can be designed to have the same resistance as the phase conductor, in which case they are referred to as “full neutrals” in that they are designed to carry the same current as the phase. URD cables typically have full neu ...
ADVFC32
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... (0.01% typ), the resolution is much higher, allowing it to be used in 16-bit measurement and control systems where a monotonic transfer function is essential. The resolution of the circuit shown in Figure 5 is dependent on the amount of time allowed to count the ADVFC32 frequency output. Using a ful ...
2 - Oxford University Press
2 - Oxford University Press

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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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