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Frequently Asked Questions (FAQs)
Frequently Asked Questions (FAQs)

... protectors that I currently install in my panels with the CCP? A: UL 1077 supplementary protectors are being misapplied and used for branch circuit protection in numerous industrial control panel applications throughout the industry. They are intended to be used as a component within a finished pro ...
LMS-3 ARRM System Installation Guide
LMS-3 ARRM System Installation Guide

... The LMS, Outposts and LTUs contain surge protection devices that will discharge high currents to the grounds under some conditions, appropriate precautions are required. ...
Product Catalog - Apollo Fire Detectors
Product Catalog - Apollo Fire Detectors

... the requirements of sophisticated systems while providing engineers with an additional dimension in fire protection capability. Discovery has a ‘distributed intelligence system’ where decisions are made in the detector head as well as at the control panel. Drift compensation is also incorporated int ...
Microelectromechanical Devices
Microelectromechanical Devices

... V1 and V2 by cos  and sin  respectively. An error amplifier takes the difference of these two output signals to generate the signal AV0 sin  t sin(   ). The phase sensitive demodulator creates a dc output that is proportional to sin(   ) . An integral controller, VCO, and up-down counter to ...
Digital Circuits.
Digital Circuits.

... Physicists and electrical engineers alike prefer to use conventional current instead of electron current. Conventional current does what you would expect it to do. It flows out of the + side of a battery and flows into the - side. Some students find this confusing. If you are among the confused, try ...
ChipKIT Pro MX7 Board Reference Manual Table of Contents
ChipKIT Pro MX7 Board Reference Manual Table of Contents

Operator’s Manual Series 300 Automatic Transfer Switches
Operator’s Manual Series 300 Automatic Transfer Switches

MAX13174E +5V Multiprotocol, Pin-Selectable Cable Terminator General Description
MAX13174E +5V Multiprotocol, Pin-Selectable Cable Terminator General Description

... is capable of terminating V.11 (RS-422, RS-530, RS-530A, RS-449, V.36, and X.21) with a 100Ω differential load, V.35 with a T-network load, or V.28 (RS-232) and V.10 (RS-423) with an open-circuit load for use with transceivers that have on-chip termination. The termination protocol can be selected b ...
Battery Tester
Battery Tester

... widely used in fields such as mobile phone, PDA, digital camera, camcorder, and notebook computer. It is the most advanced rechargeable battery. Here Li-ion battery refers to the finished Li-ion battery pack, which consists of lithium battery core (Li-ion core or lithium polymer core) and lithium ba ...
Product Guide Low Energy LED Flex Lighting
Product Guide Low Energy LED Flex Lighting

Conext Core XC Series Grid Tie Photovoltaic Inverter: Operation
Conext Core XC Series Grid Tie Photovoltaic Inverter: Operation

... Consult the system diagram to identify all PV, AC, and external auxiliary AC (if used) sources. De-energize, lock out, and tag out all sources according to the procedure in the Conext Core XC Series, 0G-XC-BB, Lock-Out and Tag-Out Procedures and Barrier Removal (document number: SD-XC-081). Wait at ...
TIG 160.180.200.160T.180T.200T operating manual
TIG 160.180.200.160T.180T.200T operating manual

... Lockout/ tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device. ...
SD6 Dimmer Pack - Strand Lighting
SD6 Dimmer Pack - Strand Lighting

... Dimmers will maintain output RMS voltage within +/-2% with changes in load from 10 watts to full rated load at any point on the dimming curve. 4. Output RMS voltage versus setting follows a modified square law dimming curve by default. A total of four fade curves shall be available and user selectab ...
Application Note 216 Summary of Well Known Interface Standards
Application Note 216 Summary of Well Known Interface Standards

ZXTD2090DE6 Features Mechanical Data
ZXTD2090DE6 Features Mechanical Data

... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
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DYNATECH D-BOX

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2 GHz Ultralow Distortion Differential RF/IF Amplifier AD8352

... rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. ...
Solid State Drives 7th Semester
Solid State Drives 7th Semester

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Aggregation of Reactive Power

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LMX2370/LMX2371/LMX2372 PLLatinum Dual Frequency Synthesizer for RF Personal Communications

... such as the National Semiconductor LMX2370/2371/2372, a voltage controlled oscillator (VCO), and a passive loop filter. The frequency synthesizer includes a phase detector, a current mode charge pump, as well as programmable reference [R] and feedback [N] frequency dividers. The VCO frequency is est ...
1.4 documentation
1.4 documentation

... 2.1.1 Frame Construction and Enclosure The frame shall be constructed of painted steel and pop riveted to provide a strong substructure. The cabinet shall be a freestanding NEMA type 1 enclosure and meet IP10 requirements. The enclosure shall be mounted on four (4) heavy-duty swivel casters for port ...
datasheet search site | www.datasheetmax.com
datasheet search site | www.datasheetmax.com

IBIS_class_2003_11_03_handout.pdf
IBIS_class_2003_11_03_handout.pdf

... It may be difficult to come up with an algorithm that can cross fade the two models so that the static currents remain constant during the transitioning process. ...
SIP 05167 Ideal 304 Welder Manual
SIP 05167 Ideal 304 Welder Manual

... 3. Check whether the inner gas-electricity connection is well (esp. the plugs), and tighten the loose connection; if there is oxidization, remove it with sand paper and then re-connect. 4. Keep hands, hair, loose clothing, and tools away from live electrical parts such as fans, wires. 5. Clear the d ...
customising a reluctor style distributor (45dm4) hei
customising a reluctor style distributor (45dm4) hei

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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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