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1 Scope (regarding no. 1)
1 Scope (regarding no. 1)

... (36) Cables and conductors must be laid in such a way that they can be exchanged and are protected, e.g. on cable trays, anchor rails, in cable trenches, channels, protective tubes, wells and on cable ladders. The cable carriers must have a space reserve of at least 20% in all areas. (37) Cables and ...
TPS63020 数据资料 dataSheet 下载
TPS63020 数据资料 dataSheet 下载

... SLVS916 – APRIL 2010 ...
MAGNASPHERE L2 HSS Technology
MAGNASPHERE L2 HSS Technology

... locations MUST be used in conjunction with a Div. 1 Class 1 Group B Intrinsically Safe Barrier listed by a Nationally Recognized Testing Laboratory (NRTL). The necessary consideration of the appropriate use of the apparatus in the hazardous locations is addressed in the instructions for the barrier ...
Canadian Electrical Code Saskatchewan Interpretations
Canadian Electrical Code Saskatchewan Interpretations

Speed of Line Protection – Can We Break Free of Phasor
Speed of Line Protection – Can We Break Free of Phasor

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Bias Voltage and Current Sense Circuits for Avalanche Photodiodes

Low power variable gain amplifier
Low power variable gain amplifier

... gain control by directing part of the input current Iin, to the output and the remaining part of the current, indicated as If, to the feedback circuit 104. The current steering stage 106 controls the proportions of current being directed to the output and to the feedback circuit 104 based on the gai ...
Third Harmonic Injection Technique
Third Harmonic Injection Technique

... At least 50 % of all power quality disturbances are voltage quality type, where the interest is the study of any deviation of the voltage waveform from its ideal form. Arguably, the most common power quality disturbance in power system is voltage sag, but other disturbances such as harmonic voltages ...
A Low-Impedance, Sub-Bandgap 0.6μm CMOS Reference with 0.84
A Low-Impedance, Sub-Bandgap 0.6μm CMOS Reference with 0.84

... the output impedance, the output of the reference (itself) can be regulated via an integrated shunt-feedback loop (Fig. 1(b)). A low output-impedance reference is especially desirable for noise-sensitive applications like ADCs, VCOs, and PLLs because of its noise-shunting and current-sourcing capabi ...
Understanding Arrester Discharge Voltage
Understanding Arrester Discharge Voltage

... All arresters provide protection to equipment by limiting the voltage across the equipment terminals in the presence of a surge on the system. This voltage limiting characteristic of arresters is the primary feature of an arrester in most cases, and the reason for its existence. The voltage limiting ...
Voltage Detector
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... falls below the minimum operating voltage (VINMIN) of 0.7V. Below this minimum operating voltage the output is undefined. During power-up (or anytime VIN has fallen below VINMIN), VOUT will remain undefined until VIN rises above VINMIN. Once this occurs, the output will become valid. VOUT will be in ...
bus ele ma iaei news june 2012 neeser
bus ele ma iaei news june 2012 neeser

... industrial control panels and industrial machinery must be designed and manufactured with an SCCR that is adequate for the installation. Therefore, if equipment such as an industrial control panel is being installed in an industrial facility, the system designer must communicate the maximum fault cu ...
PAM8008 Description Pin Assignments
PAM8008 Description Pin Assignments

... The PAM8008 is a high performance CMOS audio amplifier that requires adequate power supply decoupling to ensure the output THD and PSRR as low as possible. Power supply decoupling also prevents oscillations caused by long lead between the amplifier and the speaker. The optimum decoupling is achieved ...
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Safety Messages Hazardous High Voltage

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AD8571

... expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, these zero-drift amplifiers combine low cost with high accuracy. (No external capacitors are required.) Using a patented spread-spectrum, auto-zero technique, the AD857x family eliminates the intermodulati ...
section 16450 - electrical wiring
section 16450 - electrical wiring

... as indicated where conduit may be exposed. Keep at least 8" away from any heat producing items. Do not install conduit below grade or in floor slabs unless there is no other way to conceal conduit. Equipment feeders in mechanical rooms or mechanical yards shall be run above grade. Major feeders from ...
HAMTRONICS® R100 VHF FM RECEIVER: ASSEMBLY
HAMTRONICS® R100 VHF FM RECEIVER: ASSEMBLY

... An 8-ohm loudspeaker should be connected to E2 with ground return through the mounting hardware. Use of lower impedance speaker or shorting of speaker terminal can result in ic damage. The receiver can also drive higher impedances, like 1K to 10K input impedances of COR boards, etc. There is no need ...
FL7930B Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting
FL7930B Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting

... 3. OVP Pin: Over-Voltage Protection (OVP) is embedded by the information at the INV pin. That information comes from the output through the voltage dividing resistors. To scale down from a high voltage to a low one, high resistance is normally used with low resistance. If the resistor of high resist ...
Evaluates:  MAX16834 MAX16834 Evaluation Kit General Description Features
Evaluates: MAX16834 MAX16834 Evaluation Kit General Description Features

... of 7V to 28V and requires up to 5A. The MAX16834 EV kit circuit is configured to deliver up to 1A of current into series LEDs with a maximum forward voltage of 28V. The MAX16834 EV kit features two different types of dimming control using either an analog linear input voltage or digital PWM input si ...
BD9A101MUV-LB
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... DC/DC converter operation BD9A600MUV is a synchronous rectifying step-down switching regulator that achieves faster transient response by employing current mode PWM control system. It utilizes switching operation in PWM (Pulse Width Modulation) mode for heavier load, while it utilizes SLLM(Simple Li ...
Zeng-etal-IEEE-TOIE-2015-Analysis-and-control-of
Zeng-etal-IEEE-TOIE-2015-Analysis-and-control-of

... sources. The circuit shown can be analyzed using the same approach as for the fundamental components shown in previous sections. When the arm impedances are symmetrical, the upper and lower arm currents for each phase are identical, e.g. iap2 = ian2 for phase a. This leads to ia2 = 0 which means the ...
DaliPRO® Digital Dimming - Universal Lighting Technologies
DaliPRO® Digital Dimming - Universal Lighting Technologies

... • DaliPro ballasts and modules must be mounted properly against a flat metal piece, which acts as a heat sink for the unit. • DaliPro ballasts are not intended for remote mounting. Maximum lead lengths must be limited according to the specification. • The fixtures used to mount DaliPro ballasts must ...
Harmonics and IEEE 519
Harmonics and IEEE 519

... Even with relatively low levels of harmonic currents, a resonant circuit can cause severe problems of voltage distortion and telephone interference. A parallel resonant circuit can amplify harmonic current levels to a point where equipment can fail. Series resonant circuits can concentrate the flow ...
Universal Voltage Monitors
Universal Voltage Monitors

... The MC34161/MC33161 are universal voltage monitors intended for use in a wide variety of voltage sensing applications. These devices offer the circuit designer an economical solution for positive and negative voltage detection. The circuit consists of two comparator channels each with hysteresis, a ...
Modeling and Analysis of Differential Signaling for Minimizing
Modeling and Analysis of Differential Signaling for Minimizing

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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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