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IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

unit 1 – construction of logic gates
unit 1 – construction of logic gates

... TTL NAND Gate Operation Schottky TTL 74S Low-Power Schottky TTL Advanced Schottky TTL, 74AS Series (AS-TTL) Current-Sourcing and Current-Sinking Action Totem Pole TTL Tristate (Three-state) TTL ...
Current Transformers
Current Transformers

BS31473481
BS31473481

Negative Impedances as Power System and Control
Negative Impedances as Power System and Control

Johnson Noise and Shot Noise: The Boltzmann Constant, Absolute
Johnson Noise and Shot Noise: The Boltzmann Constant, Absolute

D048012127
D048012127

... A half-bridge resonant-type IGBT inverter suitablefor heating magnetic and nonmagnetic materials at highfrequencyis described. A series-parallel arrangement of capacitorsis adopted and an optimum mode of operation is proposed.In this mode, the inverter is operated at unity power factorby PLL control ...
AP6502A Description Pin Assignments
AP6502A Description Pin Assignments

Voltage Regulator Placement - WindMil
Voltage Regulator Placement - WindMil

... •  Set Regulation calculates line drop compensation values for each regulator you select. Set Regulation can calculate these values based on specified load centers, or it can calculate them based on a range of voltages. ...
BDTIC
BDTIC

... The fundamental electrical data of the circuit are the input voltage range, VIN, the output power, POUT, the output voltage, VOUT, the operating switching frequency, fSW and the value of the high frequency ripple of the AC line current, Iripple. Table 1 shows the relevant values for the system calcu ...
Application Note 181 3-Terminal Regulator is Adjustable
Application Note 181 3-Terminal Regulator is Adjustable

... of the regulators and should further be increased if many LM117’s are used. Diodes connected across each regulator insure that all outputs will decrease if 1 regulator is shorted. Two terminal current regulators can be made with fixed-output regulators; however, their high output voltage and high qu ...
Nch JunctionFET 15V, 50mA and NPN Bipolar Transistor 50V, 150mA CPH5
Nch JunctionFET 15V, 50mA and NPN Bipolar Transistor 50V, 150mA CPH5

... "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportati ...
香港考試局
香港考試局

... 38 Three resistors of resistance R1, R2 and R3 are connected in series. It is known that R1 > R2 > R3 . The equivalent resistance of this combination is R. Which of the following statements is/are correct ? (1) R is larger than R1. (2) If the resistor with resistance R1 is shorted, the resulting eq ...
Eletronica de Potencia V18 - N4.indd
Eletronica de Potencia V18 - N4.indd

NCP1532GEVB NCP1532 Dual Output Step-down Converter Evaluation Board User's
NCP1532GEVB NCP1532 Dual Output Step-down Converter Evaluation Board User's

... mode and synchronous rectification offer improved system efficiency. The device can also operate into fixed frequency PWM mode for low noise applications where low ripple and good load transients are required. Additional features include integrated soft−start, cycle−by−cycle current limit and therma ...
What Is the Surge-Trap SPD? ®
What Is the Surge-Trap SPD? ®

... Voltage protection rating (VPR) is determined as the nearest high value (from a list of preferred values) to the measured limiting voltage determined during the transient-voltage surge suppression test using the combination wave generator at a setting of 6kV, 3kA. How Do I Select The Correct SPD? Wh ...
Adjustable Front End Overvoltage Protection Controller with
Adjustable Front End Overvoltage Protection Controller with

... The NCP392A is an overvoltage front end protection and be able to disconnect the systems from its output pin in case wrong input operating conditions are detected, up to +28 V. Due to this device using internal NMOS, no external device is necessary, reducing the system cost and the PCB area of the a ...
TB506: Functional Principles of RS-485 Drivers and
TB506: Functional Principles of RS-485 Drivers and

... An RS-485 receiver must be able to detect small differential bus signals of as little as ±200mV in the presence of large common-mode voltages, ranging from -7V to +12V. To accomplish this task, the receiver consists of an input voltage divider with biasing stage, followed by a differential comparato ...
AD8682
AD8682

... The circuit shown in Figure 34 can be used to accurately program the Q factor; the cutoff frequency, fC; and the gain of a 2-pole state variable filter. The AD8684 has been used in this design because of its high bandwidth, low power, and low noise. This circuit takes only three packages to build be ...
SML-020MLTT86PN - ROHM Co., Ltd.
SML-020MLTT86PN - ROHM Co., Ltd.

... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
OPA604APG4 - Texas Instruments
OPA604APG4 - Texas Instruments

... Op amp distortion can be considered an internal error source which can be referred to the input. Figure 2 shows a circuit which causes the op amp distortion to be 101 times greater than normally produced by the op amp. The addition of R3 to the otherwise standard noninverting amplifier configuration ...
Basic Electrical Theory - Linn
Basic Electrical Theory - Linn

BDTIC ICE1HS01G Half-Bridge Resonant Controller
BDTIC ICE1HS01G Half-Bridge Resonant Controller

BP5034D12
BP5034D12

Digital Decoders
Digital Decoders

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Electrical ballast



An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic.Ballasts vary in design complexity. They can be as simple as a series resistor or inductor, capacitors, or a combination thereof or as complex as electronic ballasts used with fluorescent lamps and high-intensity discharge lamps.
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