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Optimal Location and Control of Flexible Three Phase Shunt FACTS
Optimal Location and Control of Flexible Three Phase Shunt FACTS

Basic RF Technic and Laboratory Manual
Basic RF Technic and Laboratory Manual

... century derived a parallel development in the field of power measurements. The majority of methods were based on converting electrical energy into heat(Thermistor and thermocouple devices). For a long time, this was the only way of making accurate measurements at practically any frequency. In the me ...
Self healing power system by accurate fault location
Self healing power system by accurate fault location

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Satellite multiswitch - EMP

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10G Linear TIA in Long-reach Multi-mode Applications

... The methodology used to implement these FFE/DFE-based equalizers can be divided into analog and digital. Theoretically EDC by using adaptive analog methods can tolerate more ROSA noise and higher bandwidth ROSA. EDC using the DSP method prefers ROSA low noise and needs low bandwidth. With more solid ...
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... VIN falls below 3.6V, LBO goes low, typically putting the system (µP) into a sleep state. The MAX1552 remains fully functional in this state and all outputs maintain normal operation. However, when in sleep mode, the system (µP) typically drives ENSD, ENC2, and ENLCD low, turning off COR2, SDIG, and ...
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AL9910/ AL9910A/ AL9910-5/ AL9910A-5 Description Pin Assignments

... MOSFET Q1 is turned off. The stored energy in the inductor causes the current to continue to flow through the LEDs via diode D1. The AL9910’s LDO provides all power to the rest of the IC including Gate drive this removes the need for large high power start-up resistors. This means that operate corre ...
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347_accepted version - OPUS at UTS

... According to the suggestion of reference [4], the current ripple should be limited to less than 10%. According to [5], it is recommended that the 100/120 Hz ripple component be limited to within 15% of the total output and the 50/60 Hz ripple component be limited to within 10% from 10% to 100% loads ...
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... folding amplifier. The cascade current mirror version is strongly suitable for low voltage low power design, but the length of transistor have to be large if we want to obtain adequate accuracy, with disadvantage of low speed [6]. ...
ASPDAC2010_Wanping - Computer Science and Engineering
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...  The noise (column 2, 4, 6) and the number of violation nodes (column 3, 5, 7) are reduced.  The improvement brought by considering the controlled-ESRs is 25% on average. With the third method, the average allocated controlled-ESR ranges from 0.038 Ohm to 0.083 Ohm for different cases. ...
Fundamental Electricity Student Study Notes
Fundamental Electricity Student Study Notes

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... and good solution. The solution has low cost, small size factor, low power consumption and simple design. However, the peripherals must be able to run directly on battery as it is not supported to sink current from the internal DCDC. Some systems require higher supply voltage ratings than the maximu ...
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... Figure 2 R/C Servo Operation. The R/C servo needs to see a pulse-width modulated control signal in order to position the output shaft. Pulse-widths vary between approximately 1ms - 2 ms, and have a period of 10 ms - 20 ms 2. Unsolder the two wires that come pre-attached to the motor. Solder the othe ...
OPA548: High-Voltage, High-Current Operational Amplifier (Rev. C)
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Joule thief - getting power from dead batteries

... Resistor - The diagram says use a 1 kilo ohm resistor but I've used an 820 ohm one just fine. I've also seen a 2 kilo ohm one in use. Use whatever works for you. You can also use a potentiometer (a variable resistor) so that you can easily adjust it to select the resistance that gives the best light ...
Printed Circuit Board Layout
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... Since we're talking about coupling between a source and it's antenna on the same printed circuit board, we are not likely to have radiation coupling. Therefore, there are only three coupling mechanisms that we need to consider. Conducted coupling will only occur if the source we have identified dire ...
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A Fresh Approach to Switching Regulator Topologies and

BDTIC www.BDTIC.com/infineon P o w e r   M a n...
BDTIC www.BDTIC.com/infineon P o w e r M a n...

... environment a ceramic capacitor must be placed between VCIN and CGND close to the pins. VDRV needs also to be decoupled using a ceramic capacitor (MLCC) between VDRV and PGND in close proximity to the pins. PGND serves as reference for the power circuitry including the driver output stage. Referring ...
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Non-destructive single-pass low-noise detection of ions in a
Non-destructive single-pass low-noise detection of ions in a

... where δ f is the frequency difference between two data points, α the total voltage amplification factor, and u the root mean square (rms) noise density given in Fig. 5. To obtain a good approximation for the effective noise amplitude a, we have chosen the frequency range Δ f of the NID as the frequency ...
Aalborg Universitet Kocewiak, Lukasz; Hjerrild, Jesper ; Bak, Claus Leth
Aalborg Universitet Kocewiak, Lukasz; Hjerrild, Jesper ; Bak, Claus Leth

... Horns Rev 2 have been obtained in the same way. WTs used in both WFs are identical, the same power converters and WT transformers. This creates an ideal opportunity to compare both WFs. The external networks are different, as previously described, but they can be threatened as representative network ...
Synchronous Triggering of Multiple Spark Gap Switches
Synchronous Triggering of Multiple Spark Gap Switches

... 10 ns was observed which is well within the synchronous timing requirement of 50ns. This was tolerablee for simultaneous discharge of two current waveforms. The slight mismatch of triggering does not affect much the total added up current for the case when peak current requirements through a single ...
AD694 - Analog Devices
AD694 - Analog Devices

... The output stage compliance extends to within 2 V of VS and its special design allows the output voltage to extend below common in dual supply operation. An alarm warns of an open 4–20 mA loop or noncompliance of the output stage. Active laser trimming of the AD694’s thin film resistors results in h ...
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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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