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network and theorems trainers
network and theorems trainers

... m-Derived high and low pass filters Trainer Constant – K high and low pass filters Trainer ...
Wireless powering of single-chip systems with integrated coil
Wireless powering of single-chip systems with integrated coil

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PROBLEMS

... 2.23 The table in Fig. P2.23(a) gives the relationship between the terminal voltage and current of the practical constant voltage source shown in Fig. P2.23(b). a) Plot υs versus is. b) Construct a circuit model of the practical source that is valid for 0  is  24 A, based on the equation of the li ...
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AT-6000 GDS Ground Fault Detection System
AT-6000 GDS Ground Fault Detection System

... The system detects the occurrence of ground fault leakage current between the generator field circuit and rotor ground, and transmits a good/bad fault determination (based upon a fixed leakage current threshold) from the rotor transmitter to the non-rotating receiver. Note: Although the AT-6000 is a ...
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S P E C I A L F... E L E C T R I C A L ... Input

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Performing Isolation Tests on High Voltage Power Supplies
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... Note that inside the HV Power Supply these three grounds connect at a single node denoted by ‘Star Connection” in the figure. When the HV Power Supply is connected to the load, each of the three grounds must connect separately to three corresponding terminals at the load. The grounds must connect se ...
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Simulation Using WinSPICE - West Virginia University

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The Making of a TV Repairman, 1950 - 1960

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... For Testing Semiconductors and Laser Diodes The 6501 is a multi-channel DC voltage current source/monitor (SMU) that integrates four source monitors. It is suitable for evaluating semiconductors such as battery controlling ICs and can work as a bias power supply for communication laser diodes or ph ...
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... • Comparator: gives a digital signal representing whether or not the acceleration of the gate is beyond an acceptable level -> this allows us to have the system ignore low acceleration conditions such as gates swaying in the wind ...
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1500 Watt MOSORB® Transient Voltage Suppressor, 6.0 V Unidir

... current to full current) and lead inductance. This inductive effect produces an overshoot in the voltage across the equipment or component being protected as shown in Figure 9. Minimizing this overshoot is very important in the application, since the main purpose for adding a transient suppressor is ...
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... tedious and long. •For this reason, there are special IC chips made by many manufacturers for serial data communications. •These chips are commonly referred to as UART (Universal Asynchronous ReceiverTransmitter) and USART (Universal Synchronous-Asynchronous ReceiverTransmitter). The 8051 chip has a ...
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... testing, which surpasses even the most severe tests required by the IEEE C62.11™-2005 design standard, including a short-circuit rating of 65 kA. In addition, our UX design has demonstrated the capability of withstanding three separate shortcircuit conditions in excess of 6 kA or greater for time du ...
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Zener diodes are designed to have a specific reverse voltage

... One method of obtaining a split supply from a non center tapped transformer, using zeners . This method may be a convenient solution in some applications but bare in mind that this will be suitable for relatively Low-Current circuits only. ...
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PRACTICAL # 08

... Negative diode clamper circuit inserts a negative DC level in the output waveform. When positive half cycle of input AC signal is provided to negative diode clamper circuit, diode is forward biased and capacitor will be charged up to voltage level (Vin-0.7), because diode has to drop 0.7volts. Durin ...
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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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