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MART-03 - Marthel
MART-03 - Marthel

... Note that audio signals at both speaker outputs are at DC voltage of about 1.5 V and are phase shifted each other by 180o. WARNING: Connection of speaker outputs (P13 and P26) both with each other and with electric ground may cause damage to the integrated circuit. In Power Down mode (when PD=H) the ...
ELEC 3105 Lecture 17 Real Transformer
ELEC 3105 Lecture 17 Real Transformer

... Ferromagnetic materials SOFT and HARD Ferromagnetic materials ...
AN-991 Line Driving and System Design
AN-991 Line Driving and System Design

... those problem areas and simplifies the design requirements. All systems must interconnect signals either by short lines on printed circuit board, long lines on a backplane, twisted pair cables, or coaxial cables, etc. At high frequency, all of these mediums must be treated as transmission lines. Two ...
MAX9985EVKIT.pdf
MAX9985EVKIT.pdf

... • Three RF signal generators (e.g., HP/Agilent 8648B) • One RF power meter (e.g., HP 437B) • One spectrum analyzer (e.g., HP 8561) • One high-power sensor (power head) (e.g., HP 8482A) • Four 3dB attenuators (3dB pads) • One 50Ω (1W) termination ...
Preparation of Papers for IUST International Journal of Engineering
Preparation of Papers for IUST International Journal of Engineering

Paul Purification
Paul Purification

... The output of battery source is a 12 volt DC and the required AC volt for AC appliances is a 220V AC (50 Hz). The function of inverter is to convert 12 DC to 220V AC which should have pure sine wave oscillation at 50 hertz like the ordinary household electrical outlet. The method that we are applyin ...
Datasheet - Mouser Electronics
Datasheet - Mouser Electronics

... Microsemi®, the developer of the CSAC, has incorporated a low power OCXO within the frequency control loop of the atomic clock enabling exceptional performance for both Allan Deviation and Phase Noise. This level of performance cannot be achieved using external phase locked loops. The LN CSAC provid ...
HMC226 / 226E
HMC226 / 226E

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LM2524D/LM3524D Regulating Pulse Width Modulator
LM2524D/LM3524D Regulating Pulse Width Modulator

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cired reduction factor of feeding lines that have a cable and an
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... well as all of the potential differences significant for the safety conditions (touch and step voltages) are proportional to the current emanating from the substation grounding system into the surrounding earth. It is known that only a part of the total fault current flows into the earth, and the re ...
Designing and Simulating a New Full Adder with Low Power
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... designing methods is Pass Transistor method[2][3][4]. In 1996, Abu-Khater and his colleagues designed one of the oldest circuits of this method. Transistor N experineced a voltage drop when it was up to pass the resource voltage; transistor P caused a voltage rise when it passed the zero voltage; so ...
ICM7555, ICM7556
ICM7555, ICM7556

... The CONTROL VOLTAGE terminal permits the two trip voltages for the THRESHOLD and TRIGGER internal comparators to be controlled. This provides the possibility of oscillation frequency modulation in the astable mode or even inhibition of oscillation, depending on the applied voltage. In the monostable ...
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General Class Question Pool 2015 - 2019 - DOC
General Class Question Pool 2015 - 2019 - DOC

... Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public? A. The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasona ...
CONTROL OF A SATELLITE BASED PHOTOVOLTAIC ARRAY FOR
CONTROL OF A SATELLITE BASED PHOTOVOLTAIC ARRAY FOR

... satellite. Because the insolation changes seen by a rotating satellite are much more dramatic than for non-rotating satellites and land based systems, a control system capable of handling the conditions encountered on a rotating satellite will also be suitable for these applications. The applicabili ...
Single-Phase Power/Energy Meter with Tamper
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... The design measures active power, voltage, and current in a single-phase distribution environment. It differs from ordinary single-phase meters in that it uses two current transducers to measure active power in both live and neutral wires. This enables the meter to detect, signal, and continue to me ...
MAX4780/MAX4784 0.7 Multiplexers Ω
MAX4780/MAX4784 0.7 Multiplexers Ω

... The MAX4780/MAX4784 are low on-resistance, lowvoltage, quad 2:1 analog multiplexers that operate from a single +1.6V to +4.2V supply. These devices have fast switching speeds (tON = 20ns, tOFF = 8ns), handle rail-to-rail analog signals, and consume less than 1µW of quiescent power. When powered from ...
MAX9650/MAX9651 High-Current VCOM Drive Op Amps for TFT LCDs General Description
MAX9650/MAX9651 High-Current VCOM Drive Op Amps for TFT LCDs General Description

... the performance of the device to ensure stability and fast settling with very large or very small capacitive loads. In many cases, this resistance is already present due to connection resistance in the wiring and no additional physical resistor is necessary. For minimum series resistance required fo ...
AUTOMATIC TRANSFER SWITCHES (ATS) IN CRITICAL
AUTOMATIC TRANSFER SWITCHES (ATS) IN CRITICAL

... Switches (ATS) used in critical applications. Systems which require the use of ATS may be optimized for fail-safe operation using worst-case design techniques and good maintainability/ preventive maintenance practices. The probability of internal ATS failures which could result in loss of power to t ...
BD5424EFS
BD5424EFS

... As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between power supply and GND as a electric pathway for the regenerated current. Be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electr ...
AP1184 General Description Features
AP1184 General Description Features

... The AP1184 regulator is a 5 terminal device designed specifically to provide extremely low dropout voltages comparable to the PNP type without the disadvantage of the extra power dissipation due to the base current associated with PNP regulators. This is done by bringing out the control pin of the r ...
SIMIREL - Siemens
SIMIREL - Siemens

shunt active power filtering for smart appliances
shunt active power filtering for smart appliances

... Continuous distorted load currents increase transformer losses and hence contribute to general temperature rise and potential local hotspots. Further, current harmonics cause additional copper losses in all equipment. These additional losses raise the transformer (and other equipment) temperatures a ...
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Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
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