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AND8474 - Implementing a 310 W Power Supply with
AND8474 - Implementing a 310 W Power Supply with

... However, it is noted that it is not easy to determine at which bulk voltage to start up the LLC converter especially when the regulated bulk voltage is close to the peak of sinusoidal input. To ensure the operation of LLC converter, the start--up level of bulk voltage is usually designed at below th ...
Body Light 1.0 Kit Instruction Manual
Body Light 1.0 Kit Instruction Manual

... transistor Q2 (MJD122T4) is a high power darlington transistor which can drive high power lighting sources such as halogen and incandescent bulbs, as well as high power LEDs. For our demonstration model, we utilized a BA15S automotive LED which is pictured in the image above. The 100k resistor, R2 o ...
50MHz, Low-Distortion, High CMRR, RRI/O, Single
50MHz, Low-Distortion, High CMRR, RRI/O, Single

... Output short-circuit (3) ...
ISSN: 0975-766X CODEN - International Journal of Pharmacy and
ISSN: 0975-766X CODEN - International Journal of Pharmacy and

... inverter, the operation is straightforward and well known [4]. Each phase node (a, b, or c) can be connected to any node in the capacitor bank (d0, d1, or d2). Connection of the a-phase to junctions d0 and d2 can be accomplished by switching transistors Ta1 and Ta2 both off or both on respectively. ...
generator set synchroning with and running in parallel with the
generator set synchroning with and running in parallel with the

Flat Transformers for Low Voltage, High Current, High Frequency
Flat Transformers for Low Voltage, High Current, High Frequency

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

LTC3610 - 24V, 12A Monolithic Synchronous Step
LTC3610 - 24V, 12A Monolithic Synchronous Step

... The LTC®3610 is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 12A output current from a 4V to 24V (28V maximum) input supply. It uses a valley current control architecture to deliver very low duty cycle operation at high frequency with excellent transient ...
Uses of the Astable Multivibrator
Uses of the Astable Multivibrator

Study Guide
Study Guide

... capacitor. We use a second circuit for t > t1 to determine the final value and the time constant. Note that if the circuit does not have an independent source for t > t1 the final value is 0. Then we write the equation for the inductor current or the capacitor voltage using the initial value, the fi ...
An Electrical Circuit Model for Magnetic Cores
An Electrical Circuit Model for Magnetic Cores

... achieving higher resistivity. Amorphous metal cores and especially crystalline metal cores have much lower resistivity and therefore higher losses. These cores are built-up with very thin laminations. This drastically reduces the voltages induced within the core because of the small cross section ar ...
LF147 数据资料 dataSheet 下载
LF147 数据资料 dataSheet 下载

... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant ...
lec5
lec5

... possible to make this current almost constant; hence a sinusoidal signal can be converted into a dc signal. ...
LLC Resonant Half Bridge Converter 300 W Evaluation Module
LLC Resonant Half Bridge Converter 300 W Evaluation Module

... isolation of AC-DC off-line application between the primary and the secondary, operating from a DC source of 390 V. The EVM uses the UCC25600 resonant half-bridge controller which integrates built-in state of the art efficiency boost features with high level protection features to provide cost effec ...
Classification of transformers according to turn ratio
Classification of transformers according to turn ratio

TMC603A Datasheet
TMC603A Datasheet

... The TMC603 is a three phase motor driver for highly compact and energy efficient drive solutions. It contains all power and analog circuitry required for a high performance BLDC motor system. The TMC603 is designed to provide the frontend for a microcontroller doing motor commutation and control alg ...
BD9161FVM-LB
BD9161FVM-LB

... (CRSS[F]:Reverse transfer capacitance of FET, IDRIVE[A]:Peak current of gate.) IDRIVE ...
Voltage balance and control in a multi
Voltage balance and control in a multi

... pattern. In such a STATCOM, the reactive power depends on the voltage difference between the line and the converter and thereby depends on the DC voltage. This voltage is regulated by charging, or discharging, the DC-link capacitors until the desired reactive power has been reached. This is achieved ...
AN2852
AN2852

... The power stage of the PFC comprises inductor L2, MOSFET Q1, diode D4 and capacitor C9. The PFC circuit is quite standard and already well described in previous ST application notes. Therefore this note will focus on the AHB stage and its controller, the L6591. This DCDC converter comprises a half-b ...
A - University of Wisconsin
A - University of Wisconsin

... [5] K. Inoue, T. Nagashima, X. Wei and H. Sekiya, "Design of high-efficiency inductive-coupled wireless power transfer system with class-DE transmitter and class-E rectifier," Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE, Vienna, 2013, pp. 613-618 [6] Tiefu Zhao, B ...
PowerPoint-presentasjon
PowerPoint-presentasjon

... almost zero when the voltage starts to rise. The tail-bump of the PT IGBT is larger in the beginning and decreases faster compared to the High Speed NPT IGBT. The tail-bump of the SKB15N60HS is low, and decreases very slowly. ...
MAX1742/MAX1842 1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches General Description
MAX1742/MAX1842 1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches General Description

... The MAX1742/MAX1842 optimize efficiency by operating in constant-off-time mode under heavy loads and in Maxim’s proprietary Idle Mode under light loads. A single resistor-programmable constant-off-time control sets switching frequencies up to 1MHz, allowing the user to optimize performance trade-off ...
- IEEE Mentor
- IEEE Mentor

... Obtain a general plant or facility layout, mark it with the known major loads at various locations, and determine the approximate total plant load in kilowatts or kilovoltamperes. Initially the amount of accurate load data may be limited; therefore, some loads, such as lighting and air conditioning, ...
ES6U41
ES6U41

... "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. ...
lecture notes
lecture notes

... bulky, rigid and have a heavy mass. Hence they cannot respond rapidly to measurements of dynamic and transient conditions. Besides, many of them are the potential sources of noise. On the other hand, electrical instruments are very rapid in response. However, their operating mechanism normally depen ...
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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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