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Power Factor Corrected Q-R PS C-M Controller for LED Lighting w TF
Power Factor Corrected Q-R PS C-M Controller for LED Lighting w TF

... VTF(start) over IOTP(REF) ratio (Note 7) ...
TSUS5402
TSUS5402

Generator TheoryPDF
Generator TheoryPDF

... • Adding a droop characteristic to a governor forces generators  to respond to frequency disturbances in proportion to their size • Droop settings enable many generators to operate in parallel  while all are on governor control and not compete with one  another for load changes ...
Lighting Surge Protection Modules Design and Installation Guide
Lighting Surge Protection Modules Design and Installation Guide

... Thermally Protected MOV for SPD Safety MOV technology is not only inexpensive but also highly effective for suppressing transients in power supplies and many other applications, such as the SPD modules that are often placed upstream from an LED driver. MOVs tend to degrade gradually after a large su ...
PWM Converter Power Density Barriers
PWM Converter Power Density Barriers

... reduction in the relative switching loss increase with switching frequency can be achieved by utilizing soft switching. The switching frequency increase can then be used to decrease the size of the inductive components and thus to decrease the converter’s total volume. However, there is an increase ...
i.MX 6Dual/6Quad Power Consumption Measurement
i.MX 6Dual/6Quad Power Consumption Measurement

... termination resistance for each DQ, DQS, DQS#, and DM signal. The ODT feature is designed to improve signal integrity of the memory channel by allowing the DRAM controller to independently turn on/off termination resistance for any or all DRAM devices. Using weaker ODT settings can greatly reduce th ...
LTC1983-3/LTC1983-5
LTC1983-3/LTC1983-5

... 3V version) from VOUT during normal operation. During shutdown, the resistor divider is disconnected from the output and the part draws only leakage current from the output. During no-load conditions, applying a 1Hz to 100Hz, 2% to 5% duty cycle signal to the SHDN pin ensures that the circuit of Fig ...
Shunt power electronic buffer as active filter and energy flow controller
Shunt power electronic buffer as active filter and energy flow controller

... magnitude of energy. A capacitor (or inductor) is employed as this energy-storing element. Switch Stage is an arrangement of power switches. Reactance Interface is an inertial circuit, which smoothes energy flow between the filter energy container and the supply source. The problem of system instabi ...
a 4/8 Channel Fault-Protected Analog Multiplexers ADG508F/ADG509F/ADG528F*
a 4/8 Channel Fault-Protected Analog Multiplexers ADG508F/ADG509F/ADG528F*

... *Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to abs ...
FSSD06 — SD/SDIO and MMC Two-Port Multiplexer Features Description 
FSSD06 — SD/SDIO and MMC Two-Port Multiplexer Features Description 

... The 1CMD, 2CMD, 1DAT[3:0], and 2DAT[3:0] ports do not have, internally, the system pull-up resistors as defined in the MMC or SD card system bus specifications. The system bus pull-up must be added external to the FSSD06. The value, within the specific specification limits, is a function of the indi ...
Thread Motion: Fine-Grained Power Management for Multi
Thread Motion: Fine-Grained Power Management for Multi

... events such as cache misses. Hence, OS-driven DVFS is too slow to respond to such fine variations in program behavior. Second, multi-core systems execute multiple applications with potentially very different computational needs. Even though the performance advantages of per-core DVFS in multi-core sy ...
by A 5 GHZ BICMOS I/Q VCO WITH 360° VARIABLE PHASE... THE VECTOR SUM METHOD
by A 5 GHZ BICMOS I/Q VCO WITH 360° VARIABLE PHASE... THE VECTOR SUM METHOD

Motor Protection Voltage Unbalance and Single
Motor Protection Voltage Unbalance and Single

... 2. Burned open overload relay (heater) from a line-to-ground fault on a 3 or 4 wire grounded system. This is more likely to occur on smaller size motor starters that are protected by noncurrent-limiting overcurrent protective devices. 3. Damaged switch or circuit breaker on the main, feeder, or moto ...
Summary
Summary

... The power and ground planes of a PCB have some amount of inductance associated with them. The geometry of these planes determines their inductance. Since power and ground planes are by definition a planar structure, current does not just flow through them in one direction. It tends to spread out as ...
Resistors - Bieap.gov.in
Resistors - Bieap.gov.in

... first significant figure the second and the third band indicates the multiplier (X10) or the number of zeroes to be added after the two significant figures. The tolerance is indicated by the fourth band or by its absence. A gold band indicates 5% tolerance, silver band 10% tolerance and no band 20% ...
user`s manual - Fuji Electric Europe
user`s manual - Fuji Electric Europe

... • If the retry function has been selected, the inverter may automatically restart and drive the motor depending on the cause of tripping. (Design the machinery or equipment so that human safety is ensured after restarting.) • If the stall prevention function (current limiter), automatic deceleration ...
Date: - ibookfi.com
Date: - ibookfi.com

... Part-winding start motors contain two separate windings (2/3:1/3) which are internally connected in star and operated in parallel. One cannot change the voltage by changing the electrical connections as the motor is only suitable for one voltage range (see Table 1). The first part winding (2/3) on t ...
LM1575/LM2575/LM2575HV SIMPLE
LM1575/LM2575/LM2575HV SIMPLE

... replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required. A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifi ...
W. Li and D.J. Perreault, “Switched-Capacitor Step-Down Rectifier for Low-Voltage Power Conversion,” 2013 IEEE Applied Power Electronics Conference , pp. 1884-1891, March 2013.
W. Li and D.J. Perreault, “Switched-Capacitor Step-Down Rectifier for Low-Voltage Power Conversion,” 2013 IEEE Applied Power Electronics Conference , pp. 1884-1891, March 2013.

... Fig. 1 shows the three major blocks of a dc-dc converter: inverter stage, transformation stage and rectification stage. The conversion ratio of conventional rectifiers for high-frequency rectification do not provide a desirable step down from the ac voltage amplitude to the dc voltage output. This p ...
Fluke 120B Series Industrial ScopeMeter® Hand
Fluke 120B Series Industrial ScopeMeter® Hand

... ever before. As an example, when the measured waveform is a line voltage signal, the Vrms and Hz readings are automatically displayed, whereas if the measured waveform is a square wave, the Vpeak-peak and Hz readings are automatically displayed. Using IntellaSet ™ technology in conjunction with Conn ...
DM-III Power Quality Recorder Product Manual
DM-III Power Quality Recorder Product Manual

... The instrument uses sophisticated algorithms to prolong the battery life. Particularly: The instrument switches OFF the backlight Automatically after 5 seconds. If the instrument is displaying in real time (and the external power supply is not connected), after about 5 minutes from the last key pres ...
MAX1553/MAX1554 High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs General Description
MAX1553/MAX1554 High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs General Description

... inductor current. With large inductor values (typically greater than 10µH), stability, input, and output ripple are improved by connecting a capacitor in parallel with the LEDs (C4 in Figures 1, 2, and 3). To prevent saturation, use an inductor with a current rating that matches the device’s LX curr ...
DESDALC5LP Product Summary Features
DESDALC5LP Product Summary Features

... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
TUSB1211 数据资料 dataSheet 下载
TUSB1211 数据资料 dataSheet 下载

... The USB PLL block generates the clocks used to synchronize: • the ULPI interface (60 MHz clock) • the USB interface (depending on the USB data rate, 480 Mbps, 12 Mbps or 1.5 Mbps) TUSB1211 requires an external reference clock which is used as an input to the 480MHz USB PLL block. Depending on the cl ...
Transient Voltage Suppressors (TVS Diode) Applications
Transient Voltage Suppressors (TVS Diode) Applications

... The exponential rise time of lightning is in the range 1.2µsec to 10µsec (essentially 10% to 90%) and the duration is in the range of 50µsec to 1000µsec (50% of peak values). ESD on the other hand, is a much shorter duration event. The rise time has been characterized at less than 1.0ns. The overall ...
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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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