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Crest Factor
Crest Factor

... significantly, the baseline voltage wanders. AC coupling is stressed by varying the mark density of the signal. The mark density is the average fraction of logic ones in the data: the ratio of the number of logic ones to the total number of bits. Most standards require a mark density of ½; that is, ...
The approximation scheme for peak power driven voltage partitioning
The approximation scheme for peak power driven voltage partitioning

... of time, the whole voltage island can be shut down to save energy during that time. Such a shutdown mechanism has been explored in various previous works including [6], [7], [8], [9]. Most of them need the assumption that the shutdown frequency of each voltage island is known in advance. Based on th ...
LF411-N 数据资料 dataSheet 下载
LF411-N 数据资料 dataSheet 下载

... and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s te ...
High Voltage Power Supplies
High Voltage Power Supplies

Grant Proposal for Project Name - WSU EECS
Grant Proposal for Project Name - WSU EECS

... CMOS scaling has been a very positive development allowing:  Fast ...
Folie 1
Folie 1

Lab 2 Document (Word format)
Lab 2 Document (Word format)

... also called the plant. Sensors and signal conditioning may be used to transform a mechanical variable (e.g. flow, speed, pressure, temperature) into electrical signals. In some cases such as OP AMPs, the signals may already be electrical quantities such as voltage or current. An error signal is prod ...
AND9441 - Current Limits in Electronic Fuses using Direct
AND9441 - Current Limits in Electronic Fuses using Direct

... SENSEFET is a registered trademark of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/o ...
Class H Power Amplifier for Power Saving in Fluxgate Current
Class H Power Amplifier for Power Saving in Fluxgate Current

Power-Gating Single-Rail MOS Current
Power-Gating Single-Rail MOS Current

... Power-Gating Single-Rail MOS Current-Mode Logic Circuits Using HighThreshold PMOS Transistors as Linear Resistors Ruiping Cao, Jianping Hu* and Xuecheng Xiang Faculty of Information Science and Technology, Ningbo University, Ningbo, 315211, China Abstract: In this paper, a power-gating technology fo ...
designing an uninterruptible power supply based on the high
designing an uninterruptible power supply based on the high

... range. The full-bridge converter with a phaseshift control has been used for high step-up applications. However, the phase shifted fullbridge converters [10,11] require lots of power switching devices and the associated control circuits. So, the manufacturing cost of the system increases, which limi ...
P85445D
P85445D

... WARNING: When installing strobes in an open office or other areas containing partitions or other viewing obstructions, special attention should be given to the location of the strobes so that their operating effect can be seen by all intended viewers, with the intesity, number, and illumination, reg ...
TDA8922C 1. General description 2
TDA8922C 1. General description 2

... 8.2 Pulse-width modulation frequency The amplifier output signal is a PWM signal with a typical carrier frequency of between 250 kHz and 450 kHz. A second order LC demodulation filter on the output converts the PWM signal into an analog audio signal. The carrier frequency is determined by an externa ...
đây
đây

... range. The full-bridge converter with a phaseshift control has been used for high step-up applications. However, the phase shifted fullbridge converters [10,11] require lots of power switching devices and the associated control circuits. So, the manufacturing cost of the system increases, which limi ...
LM3914 data sheet
LM3914 data sheet

... any reference loading adds 4 times that current drain to the V+ (pin 3) supply input. For example, an LM3914 with a 1mA reference pin load (1.3k), would supply almost 10mA to every LED while drawing only 10mA from its V+ pin supply. At full-scale, the IC is typically drawing less than 10% of the cur ...
AMPLIFIER v12 OPERATION MANUAL ADDRESS 9 4 1 2 3 13 16
AMPLIFIER v12 OPERATION MANUAL ADDRESS 9 4 1 2 3 13 16

Laboratory Manual
Laboratory Manual

... 2) STATOR RESISTANCE STARTER In order to apply the reduced voltage to the stator of the inductionmotor, three resistances are added in each phase of the stator winding. Initially the resistances are kept maximum in the circuit, due to this large voltage gets dropped across the resistances. Hence a r ...
DS1220AB/AD 16k Nonvolatile SRAM FEATURES PIN ASSIGNMENT
DS1220AB/AD 16k Nonvolatile SRAM FEATURES PIN ASSIGNMENT

... 8. If WE is low or the WE low transition occurs prior to or simultaneously with the CE low transition, the output buffers remain in a high-impedance state during this period. 9. Each DS1220AB and each DS1220AD has a built-in switch that disconnects the lithium source until VCC is first applied by t ...
Converter Modules
Converter Modules

... output, and to any count signal voltage from +3 to +28 VDC. The module accepts input count pulses from NPN Open-Collector Transistor outputs, BiPolar outputs, or sourcing outputs such as Emitter-Follower or PNP OpenCollector Transistors (Sourcing outputs must be externally loaded with a load of 10 K ...
G656/G657 - Global Mixed
G656/G657 - Global Mixed

IS31BL3229-QFLS2-TR Datasheet
IS31BL3229-QFLS2-TR Datasheet

... FEATURES ...
Switch-on-to-Fault Schemes in the Context of Line Relay
Switch-on-to-Fault Schemes in the Context of Line Relay

... conditions when both line terminals are already closed, regardless of the load current or line voltage. If the local breaker is being closed to energize an unfaulted line, the scheme is secure from tripping provided that the current fault detector is set above line charging current as well as any ta ...
Using the Loss-Free Resistor concept to design a simple ac
Using the Loss-Free Resistor concept to design a simple ac

Space Vector Control of a Three-Phase Rectifier using
Space Vector Control of a Three-Phase Rectifier using

... an alternating zero vector strategy and a symmetbased on a PWM generator, generates the switchrical modulation strategy. ing vector transition times. The PWM generator is based on a highly-efficient implementation that does not require an iterative zero-crossing algo2.3.1 Alternating zero vector mod ...
Shedding Light on HID Ballast Control
Shedding Light on HID Ballast Control

... constant power control while running. It is important to tightly regulate lamp power with respect to lamp voltage to minimize lamp-to-lamp color and brightness variations. Also, HID lamps use an ac-voltage drive to avoid mercury migration. They operate at a low frequency, typically less than 200 Hz, ...
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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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