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OA-13 - Circuits and Systems
OA-13 - Circuits and Systems

... impedance of parallel/series combinations of emitter followers for most Comlinear amplifiers. Thus, Ri is some fraction or integer multiple of Vt/Ic, where Vt = kT/q and Ic is the bias current in those transistors. For lower power parts, and parts with adjustable supply current, Ri can get very larg ...
H P D C
H P D C

Basic Properties Terminology Theory
Basic Properties Terminology Theory

... viewpoint this is not nearly as important as understanding the basic electrical properties as they relate to device construction. The key to explaining metal-oxide varistor operation lies in understanding the electronic phenomena occurring near the grain boundaries, or junctions between the zinc oxi ...
Trouble shooting on Extrusion Temperature Control Equipment
Trouble shooting on Extrusion Temperature Control Equipment

5120 PID Board 5125 Power Board 5130 Motor Board 5131 Servo
5120 PID Board 5125 Power Board 5130 Motor Board 5131 Servo

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ARCAT spec 262600 2009-9-15

... 2. Data Sheets and Publications on all major components such as the following a) Contactors b) Circuit Breaker and Fuse information including time current characteristics c) Control Power Transformers d) Pilot devices e) Relays f) Operator Interface D. Spares 1. Recommend spare parts list and list p ...
Investigation of the potential of organic circuit
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NRG 10A
NRG 10A

... A. All conductors should be rated for use at 90ºC/194°F or higher. B. All input and output conductor sizes should be coordinated with the fault protection devices: 10A on AC input (14 AWG, 2.5 mm2 typical), 30A on DC output (10 AWG, 6.0 mm2 typical). 1 A on Alarm terminal block (20 AWG, 0.5 mm2 typi ...
R8002CND
R8002CND

... are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or ...
ZX5T851G Features Mechanical Data
ZX5T851G 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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64-Position OTP Digital Potentiometer AD5171 FEATURES

... Devices offers device programming software that operates across Windows® 95 to XP platforms, including Windows NT. This software application effectively replaces the need for external I2C controllers or host processors and, therefore, significantly reduces the development time of the users. An AD517 ...
ZAPI AC3-AC4 Manual
ZAPI AC3-AC4 Manual

... It can be driven in two ways: - on/off control: the coil is driven with the full battery voltage. - the coil is switched on and off at high frequency (1 kHz) with a duty cycle around 60%; this feature is useful to decrease the power dissipation of the contactor coil. Each coil has a preferred way wh ...
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Lesson 2 Resistance

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SECTION 260500 - COMMON WORK RESULTS FOR ELECTRICAL

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Aalborg Universitet Coordinated Primary and Secondary Control with Frequency-Bus-Signaling for

ground-fault analysis and protection in pv arrays
ground-fault analysis and protection in pv arrays

... modules left operating, since the rest of modules (Module 3 ~ Module n) are short circuited by two ground points F and G. As a result, String 1 is significantly mismatched with other normal strings. Meanwhile, the operating voltage of the PV array might be even larger than the open-circuit voltage o ...
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Monday, June 20, 2016

... • So what in the world makes dielectrics behave the way they do? • We need to examine this in a microscopic scale. • Let’s consider a parallel plate capacitor that is charged up +Q(=C0V0) and –Q with air in between. – Assume there is no way any charge can flow in or out ...
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... equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment ...
FCX558 Features Mechanical Data
FCX558 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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CDM Installation Guide

... In order to ensure that there are no problems with voltage drops causing the system to shut down, a heavy duty solid state ignition switch is recommended. Also, the black wire should be connected directly to the negative battery terminal to avoid erratic operation due to a poor ground connection. A ...
RM4100 User Guide - American Innovations
RM4100 User Guide - American Innovations

... should provide an easy and accessible means for removing the main input supply power source from the unit. Multiple-pole circuit breakers shall interrupt all neutral and ungrounded connectors of mains supply simultaneously. The power disconnect device must be clearly marked to identify it as the dis ...
lecture 170 – temperature stable references
lecture 170 – temperature stable references

Technical Paper Revision 5 - Edge
Technical Paper Revision 5 - Edge

... In order to limit the dark decay due to the sensitivity of the photoreceptor to light, a dark enclosure was designed. The dark enclosure was built over the charging, exposure, and development stations since at these three stations the charge on the photoreceptor was at its peak sensitivity due to th ...
ADS5281 数据资料 dataSheet 下载
ADS5281 数据资料 dataSheet 下载

... All characteristics are common for the ADS528x family. The offset temperature coefficient in ppm/°C is defined as (O1 – O2) × 106/(T1 – T2)/4096, where O1 and O2 are the offset codes in LSB at the two extreme temperatures, T1 and T2. The internal reference temperature coefficient is defined as (REF1 ...
fire detection systems fire detection systems
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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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