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General Description Features
General Description Features

... modulating (PWM) controller IC in a 16-pin TQFN package with an exposed pad. A simple RC charging circuit is used to start up the device. Bias winding feedback is used to supply power during normal operation. Input DC bus capacitor (C5) is designed based on 100Hz ripple content. The 100Hz ripple is ...
IOSR Journal of Electrical and Electronics Engineering PP 33-38 www.iosrjournals.org
IOSR Journal of Electrical and Electronics Engineering PP 33-38 www.iosrjournals.org

... as oxygen absorbs light, so does ozone. The dissociation or photolysis of ozone has its greatest yield between 200 and 308nm. For effective ozone production it is therefore necessary to utilize a short wavelength ~185nm. In theory, the yield of O from 185nm UV light is 130g/kWh of light. As lamp eff ...
AN3119
AN3119

... boost switch is represented by the Q1 and Q2 power MOSFETs, connected in parallel. The NTC R1 limits the inrush current at switch-on. It has been connected on the DC rail, in series to the output electrolytic capacitor, in order to improve the efficiency during low-line operation. In fact the RMS cu ...
MAX14838/9 - Maxim Part Number Search
MAX14838/9 - Maxim Part Number Search

... MAX14839 cannot be damaged with a 100nF bypass capacitor on the VCC line. Transients due to inductive kickback on DO when driving inductive loads up to 1.5H at 100mA or less can also bring the DO voltage above the absolute maximum rating, yet not damage the device. The absolute maximum ratings for V ...
Vacuum Gas-FilledRELAys
Vacuum Gas-FilledRELAys

... Gas-filled relays also provide low, stable leakage current in applications sensitive to current fluctuations, especially across open contact sets over long periods of time. However, these relays should not be used when it is necessary to break a current. As the contacts open, the gas will ionize, an ...
Distance Protection 7SA6
Distance Protection 7SA6

8.4 Active harmonic conditioner protection
8.4 Active harmonic conditioner protection

... - The Active Harmonic Conditioner shall be capable of delivering its rated output harmonic current to the point of connection whatever the load conditions. - The rated output current shall be indicated in Amperes (rms) per phase. - In the neutral conductor, the Active Harmonic Conditioner shall also ...
OPA843 Wideband, Low Distortion, Medium Gain, Voltage-Feedback OPERATIONAL AMPLIFIER DESCRIPTION
OPA843 Wideband, Low Distortion, Medium Gain, Voltage-Feedback OPERATIONAL AMPLIFIER DESCRIPTION

... useful in a wide variety of application circuits, as long as simple guidelines common to all high-speed amplifiers are observed. For example, good power-supply decoupling, as shown in Figure 1, is essential to achieve the lowest possible harmonic distortion and smooth frequency response. Careful PC ...
BD8132FV
BD8132FV

... The serial data control block consists of a register that stores data from the LATCH, CLK, and SDIN pins, and a DAC circuit that receives the output from this register and provides adjusted voltages to other IC blocks. When the IC's power supply is activated, the reset function operates to set the r ...
IMH23
IMH23

... VCE(sat) =40mV at IC / IB=50mA / 2.5mA, makes these transistors ideal for muting circuits. 4) These transistors can be used at high current levels, IC=600mA. Inner circuit 5) Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equ ...
MAX2370 Complete 450MHz Quadrature Transmitter General Description Features
MAX2370 Complete 450MHz Quadrature Transmitter General Description Features

... Differential IF Outputs. This port is active when IF_SEL is LOW and supports both FM and CDMA modes. IFOUT+ and IFOUT- must be inductively pulled up to VCC and differentially loaded with typically 560Ω. A 400Ω differential IF bandpass filter is connected between this port and IFIN+/-. IFOUT-, IFOUT+ ...
AN1549: Addressing Power Issues in Real Time Clock
AN1549: Addressing Power Issues in Real Time Clock

Test System Signal Switching
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... Switches are used for two basic functions: providing control input to a DUT and maintaining interconnection between instruments and test points. The control function is often used to provide the stimuli required to perform a test. For example, switches used to control the automatic seat adjustment i ...
800-6000......... TORTOISE™ Slow Motion Switch Machine
800-6000......... TORTOISE™ Slow Motion Switch Machine

... (1 and 8), no harm will be done as long as it is 12 volts or less. The TORTOISE will not work with AC , of course, but it will not be damaged. There are basically three different methods of providing the changeable polarity DC necessary to make the TORTOISE run in both directions. 1. DC WITH CROSS W ...
BD9102FVM
BD9102FVM

... The BD9102FVM and BD9104FVM are ROHM’s high efficiency step-down switching regulator designed to produce a voltage as low as 1.24V from a supply voltage of 5V. Offers high efficiency with our original pulse skip control technology and synchronous rectifier. It offers high efficiency by using synchro ...
8.0 ELECTRIC POWER
8.0 ELECTRIC POWER

... have a thermal rating greater than 2000 MVA. The retained segments of the Elay transmission line also have a rating greater than 2000 MVA. Figure 8.2-1 depicts the 345 kV transmission configuration. At least two of the overhead 345 kV transmission lines provide the two preferred sources of power for ...
Research Journal of Applied Sciences, Engineering and Technology 8(4): 481-487,... ISSN: 2040-7459; e-ISSN: 2040-7467
Research Journal of Applied Sciences, Engineering and Technology 8(4): 481-487,... ISSN: 2040-7459; e-ISSN: 2040-7467

... expected since the advantages of phase modulation formats in presence of nonlinear effects have been indicated by other researchers (Gene et al., 2004; Ferber et al., 2005). Among RZ-OOKs with different duty cycles, CSRZ still shows better quality than the others do and it allows higher power levels ...
CH 4 - Oscillator_updated
CH 4 - Oscillator_updated

...  The Colpitts oscillator is a type of oscillator that uses an LC circuit in the feed-back loop.  The feedback network is made up of a pair of tapped capacitors (C1 and C2) and an inductor L to produce a feedback necessary for oscillations.  The output voltage is ...
TPS7A4001 100-V Input Voltage, 50
TPS7A4001 100-V Input Voltage, 50

... 7 Detailed Description 7.1 Overview The TPS7A4001 device belongs to a new generation of linear regulators that use an innovative BiCMOS process technology to achieve very high maximum input and output voltages. This process not only allows the TPS7A4001 device to maintain regulation during very fast ...
TRIAC Specifications And Recommendations (Turn
TRIAC Specifications And Recommendations (Turn

... current in either direction when it is triggered (turned on) and thus doesn't have any polarity. It can be  triggered by either a positive or a negative voltage being applied to its gate electrode. Once triggered,  the device continues to conduct until the current through it drops below a certain th ...
Table of Contents 8.0
Table of Contents 8.0

... The U.S. EPR FSAR includes the following COL Item in Section 8.1.1: A COL applicant that references the U.S. EPR design certification will provide site-specific information describing the interface between the off-site transmission system, and the nuclear unit, including switchyard interconnections. ...
MAX1758 Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 28V Switch General Description
MAX1758 Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 28V Switch General Description

... a programmable current of up to 1.5A to charge the battery. The built-in safety timer automatically terminates charging once the adjustable time limit has been reached. The MAX1758 regulates the voltage set point and charging current using two loops that work together to transition smoothly between ...
Datasheet - Monolithic Power System
Datasheet - Monolithic Power System

MMBT3906FA Features Mechanical Data
MMBT3906FA Features Mechanical Data

... hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by on ...
PS9305L,PS9305L2  Data Sheet Preliminary
PS9305L,PS9305L2 Data Sheet Preliminary

... (2) When designing the printed wiring board, ensure that the pattern of the IGBT collectors/emitters is not too close to the input block pattern of the photocoupler. If the pattern is too close to the input block and coupling occurs, a sudden fluctuation in the voltage on the IGBT output side might ...
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Three-phase electric power



Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.
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