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$doc.title

... including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work ...
NGG NGB Circuit Breakers File size 1.1MB
NGG NGB Circuit Breakers File size 1.1MB

SSM2517 数据手册DataSheet 下载
SSM2517 数据手册DataSheet 下载

... three-level modulator design retains the benefits of an all-digital amplifier, yet enables very good PSRR and audio performance. The modulation continues to provide high efficiency even at low output power and has an SNR of 96 dB. Spread-spectrum pulse density modulation is used to provide lower EMI ...
BDTIC www.BDTIC.com/infineon  E l e c t r i c  ...
BDTIC www.BDTIC.com/infineon E l e c t r i c ...

... Since IC is not known in eq. (4), VCE sat @ IC is also not known, but can be found within few iterations [5]. The ratings of continous DC-collector current are calculated with maximum values for VCE sat to ensure the specified current rating, taken into account component tolerances. ...
Efficiency evaluation of interior permanent magnet synchronous
Efficiency evaluation of interior permanent magnet synchronous

... Fig. 3 shows the variation of the phase voltage during synthetic loading with a synthetic frequency of 4 Hz. The phase voltage magnitude during synthetic loading depends on the rotor speed and the air-gap flux. Therefore, any variation in the rotor speed and air-gap flux affects the phase voltage va ...
AD652
AD652

... one clock period for reset and three clock periods of integrate. This is shown in Figure 5. If the input current is increased by a very small amount, the output frequency should also increase by a very small amount. Initially, however, no output change is observed for a very small increase in the in ...
OptiMate 6 Instructions - pdf
OptiMate 6 Instructions - pdf

1 General - Eskom Board
1 General - Eskom Board

... a. Voltage depressions of medium duration can be caused by the switching of load such as induction motors. b. The supply voltage can fall as low as 75% of nominal value and the duration of this depression can be up to 10 seconds. c. An alternative source of this abnormal condition is when power swin ...
harmonics-shipboard-reportdraft1final
harmonics-shipboard-reportdraft1final

Power balance and choice of power supply solutions
Power balance and choice of power supply solutions

... as a result the sources, is still often carried out by analogy with comparable previous installations or even with a certain degree of empiricism (for example value per m² for heating and lighting) which is not accurate enough given the scale of some installations or their complexity of operation� C ...
Operational Transconductance Amplifiers
Operational Transconductance Amplifiers

... Thus we can finally show that the transconductance is anything but constant, depending both on temperature and input voltage as has been stated earlier. The second term is a bell shaped curve that equals 1 at zero input, falling off rapidly at both sides to asymptotically approach zero. The practica ...
Data Sheet
Data Sheet

... to 2 kW/V, 5 kW/V or 10 kW/V for voltmeters 1 ... 600 V (as far as practicable) non–glaring glass gray (similar to RAL 7037) horizontal or to be specified 15...165° connector blades 6.3 x 0.8 limited use in the tropics climatic class 3 according to VDE/VDI 3540 –25 ... +55°C non–certified or type ap ...
Schneider MV Design Guide
Schneider MV Design Guide

... Calculating the short-circuit current across the terminals of a synchronous generator is very complicated because the internal impedance of the latter varies according to time. c When the power gradually increases, the current reduces passing through three characteristic periods: v sub-transient (en ...
pm700 installation manual
pm700 installation manual

... Only qualified electrical workers should install this equipment. Such work should be performed only after reading this entire set of instructions. NEVER work alone. Before performing visual inspections, tests, or maintenance on this equipment, disconnect all sources of electric power. Assume that al ...
SLO-SYN Bipolar Model SD200 Step Motor Drive
SLO-SYN Bipolar Model SD200 Step Motor Drive

... module is mounted could be used as an effective sixth side shield. The Module has an internal capacitor connected across the motor/module supply pins (13 and 18) to assure circuit stability. This capacitor cannot handle high values of ripple current, which may lead to permanent damage if the primary ...
MM74C14 Hex Schmitt Trigger
MM74C14 Hex Schmitt Trigger

... low variation with respect to temperature (typ. 0.0005V/°C at VCC = 10V), and hysteresis, VT+ − VT− ≥ 0.2 VCC is guaranteed. ...
OWNER/INSTALLER INSTRUCTION MANUAL ET100
OWNER/INSTALLER INSTRUCTION MANUAL ET100

MN1919WEN MicroFlex
MN1919WEN MicroFlex

800-6000......... TORTOISE™ Slow Motion Switch Machine
800-6000......... TORTOISE™ Slow Motion Switch Machine

... 1. DC WITH CROSS WIRED DPDT SWITCHES: This system uses the most basic power source, a simple DC supply of not more than 12 volts. Lesser voltages will make the TORTOISE run slower (and quieter). The power supply need not be filtered. Each TORTOISE will draw 15-16 ma. at stall, so 30 switch machines ...
Little Box Challenge - LED lighting, LEDs, power
Little Box Challenge - LED lighting, LEDs, power

LSH6008-CA50A
LSH6008-CA50A

... Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy ...
BUM 62 T - Baumüller Services
BUM 62 T - Baumüller Services

... The supply part (mains side) for the generation of the DC link voltage is an uncontrolled diode bridge. To reduce the peak making current (deburdening during switch-on), the DC link capacitors are charged via a charge resistor which is bridged by a thyristor after switching-on. If the typical motor ...
Super Sequencer with Margining Control and Nonvolatile Fault Recording ADM1166
Super Sequencer with Margining Control and Nonvolatile Fault Recording ADM1166

... store user-defined information and may also be used to hold a number of fault records that are written by the sequencing engine defined by the user when a particular fault or sequence occurs. ...
2005 Code Changes
2005 Code Changes

... current rating. This facilitates the inspection and approval process. Inspectors need this information to ensure that 110.10 is met. The potential hazard exists where higher fault currents are available. It is now required that industrial control panels, industrial machinery electrical panels, certa ...
The use of PAS capacitors / lithium capacitors for adapting to
The use of PAS capacitors / lithium capacitors for adapting to

... other mobile devices. In fact, we could even say that development of those bat- ...
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Rectifier



A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.
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