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International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.12, pp. 1673-1679
International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.12, pp. 1673-1679

... power quality means there is a deviation in the power supply to cause equipment malfunction or may failure. To solve the power quality problem the power electronic devices such as flexible alternating-current transmission system (FACTS) and custom power devices (DVR) which are used in transmission a ...
OC Series - Haefely Hipotronics
OC Series - Haefely Hipotronics

... features provided in these power supplies including input and backup breakers, adjustable overload relay (10-110% of rated current), fast overload sensor, zero-start interlock plus provision for external safety interlock, current-limiting resistor in output circuit, output shorting solenoid (and/or ...
LeCroy Current Probes Datasheet
LeCroy Current Probes Datasheet

... ADP300 is good for troubleshooting low frequency power devices and other circuits where the reference potential is elevated from the ground or the ground is unknown. The 100 MHz bandwidth ADP305 is designed for measuring the floating voltages found in today’s high-speed power electronics. PMA2 – Pow ...
High Power Machine Drive, Based on Three
High Power Machine Drive, Based on Three

fuzzy control of shoot through time of single stage
fuzzy control of shoot through time of single stage

Versa-Pac as Forward Converter
Versa-Pac as Forward Converter

... selected, it should be tested by the user in all possible applications. Life Support Policy: Cooper Electronic Technologies does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support sys ...
NCV890103 1.2 A, 2 MHz Automotive Buck Switching Regulator with RSTB
NCV890103 1.2 A, 2 MHz Automotive Buck Switching Regulator with RSTB

... regulator intended for Automotive, battery−connected applications that must operate with up to a 36 V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890103 is capable of converti ...
Analysis of Series-Parallel Resonant Inductive Coupling Circuit
Analysis of Series-Parallel Resonant Inductive Coupling Circuit

... been research to find out most suitable topology for particular application such as battery charging [6-10]. While there are other topologies that may be used, the parallel secondary architecture is beneficial for battery charging because of its constant current source characteristics, which occurs ...
INA116 - Texas Instruments
INA116 - Texas Instruments

... +2mA/–50µA. For slow input signals the internal guard output can directly drive a cable shield. With fast input signals, however, the guard may not provide sufficient output current to rapidly charge the cable capacitance. An op amp buffer may be required as shown in Figure 6. ...
Electricity Chapter 9.1 textbook
Electricity Chapter 9.1 textbook

... lectricity is such a common part of our lifestyle that we tend to forget the amazing processes involved in its production and distribution. With the “flick of the switch” you can light up a room, play video games, or cook your favourite dish. Chances are that the electrical energy you use here in Br ...
Synchronous Generator
Synchronous Generator

... Types of Construction Use of Alternator Specification of Alternator ...
Design of the electrical circuit of the new RF Wien Filter at COSY
Design of the electrical circuit of the new RF Wien Filter at COSY

... most critical part is the development of a variable resistor for the required power level because there is no commercial solution. Additionally, classical resistors are very sensitive to the power deposited in them. As a consequence, the large variation of the field quotient may lead to beam loss du ...
MAX8884 Evaluation Kit Evaluates:  MAX8884Y/MAX8884Z General Description Features
MAX8884 Evaluation Kit Evaluates: MAX8884Y/MAX8884Z General Description Features

... The MAX8884 evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the highly integrated MAX8884Y step-down DC-DC converter and dual, 300mA, low-dropout (LDO) linear regulator. The stepdown output voltage is pin selectable between 1.2V and 1.8V and provides guaranteed output c ...
TLX9000
TLX9000

... Isolation voltage (R.H.≤60%, AC 60 s) ...
Five Level Flying-Capacitor Multilevel Converter Using Dynamic
Five Level Flying-Capacitor Multilevel Converter Using Dynamic

QS6U22
QS6U22

... The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devic ...
PHET - DC Electric Circuit online Lab File
PHET - DC Electric Circuit online Lab File

Electricity & Magnetism
Electricity & Magnetism

MAX9938 1µA, 4-Bump UCSP/SOT23, Precision Current-Sense Amplifier General Description
MAX9938 1µA, 4-Bump UCSP/SOT23, Precision Current-Sense Amplifier General Description

... loads OUT and causes a drop in the output voltage. If sampling time is very short (less than a microsecond), consider using a ceramic capacitor across OUT and GND to hold VOUT constant during sampling. This also decreases the small-signal bandwidth of the currentsense amplifier and reduces noise at ...
lab sheet - Faculty of Engineering
lab sheet - Faculty of Engineering

osc/INTELLIMETER - Standard Energy Systems, Inc.
osc/INTELLIMETER - Standard Energy Systems, Inc.

... current is supplied to the primary, a high voltage will develop between the secondary terminals of the transformer. To avoid electric shock and the possibility of damage to the current transformer, be sure the secondaries are shorted together on each current transformer.* ...
TL081 OpAmp - U.C.C. Physics Department
TL081 OpAmp - U.C.C. Physics Department

... forced to a high state. The amplifier will operate with a common-mode input voltage equal to the positive supply; however, the gain bandwidth and slew rate may be decreased in this condition. When the negative common-mode voltage swings to within 3V of the negative supply, an increase in input offse ...
Module 8 - Control Systems: Review of Electronics Goals
Module 8 - Control Systems: Review of Electronics Goals

HIGH STEP–UP DC––DC CONVERTER FOR AC PHOTOVOLTAIC
HIGH STEP–UP DC––DC CONVERTER FOR AC PHOTOVOLTAIC

OPA341,OPA2341: Single-Supply, Rail-to-Rail Op
OPA341,OPA2341: Single-Supply, Rail-to-Rail Op

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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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