• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Q-Astec - First transient power converter using switched
Q-Astec - First transient power converter using switched

... ƒ Transient can be supported in the time that it takes to turn the FET On/Off ƒ When output current follows processor demand current, significant reduction in output capacitance can be observed ƒ The constant current source is derived from a Buck Converter driving a matrix Transformer configuration ...
DN447 - A Complete Compact APD Bias Solution for a 10Gbits/s GPON System
DN447 - A Complete Compact APD Bias Solution for a 10Gbits/s GPON System

... pin. The CTRL pin serves to override the internal reference. By tying this pin above 1.25V, the output voltage is regulated with the feedback at 1.25V. By externally setting the CTRL pin to a lower voltage, the feedback and the output voltage follow accordingly. The SHDN pin not only enables the con ...
HVDC Technology Line Commutated Converters
HVDC Technology Line Commutated Converters

... load, i.e. lagging power factor Both rectifier and inverter operation  exhibit lagging power factor, i.e. current  lags voltage Lagging power factor is due to phase  control and commutating reactance Typically reactive power demand = 55%  of station rating at full load Reactive power compensation – ...
Electricity and Why it Moves
Electricity and Why it Moves

... doing work to give potential electric energy (Ep) to the electrons. Batteries give voltage. The resistors use all of the electrical potential energy. This is why the voltage always equals 0 volts just before it reenters the battery. ...
Tips for Using Single Chip 3 / Digit A/D Converters
Tips for Using Single Chip 3 / Digit A/D Converters

BDTIC C C M - P F C
BDTIC C C M - P F C

125°C Temperature
125°C Temperature

BH1417F Stereo PLL FM Transmitter Design Guide Introduction
BH1417F Stereo PLL FM Transmitter Design Guide Introduction

... tunable inductor is that perhaps it helps to adjust the resonant frequency of the oscillator(voltage controlled oscillator) to operate all over the FM band(88-108MHz). That is, it need manually tuning during the process of assembly and testing. In fact, we can replace this tunable RF coil with fixed ...
Ripple: Refers to a low or medium frequency repeating oscillation on
Ripple: Refers to a low or medium frequency repeating oscillation on

... Therefore the diode is conducting and the emitter of Q1 is pulled down to one diode drop above ground. If we assume that the diode drop is small enough to be negligible then the switch sees the full supply voltage Vs while it is turned off. When the switch turns on it starts to take some of the indu ...
Single-Supply Operation of Operational Amplifiers
Single-Supply Operation of Operational Amplifiers

... Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is cur ...
Phys241ManualUnit3
Phys241ManualUnit3

... Write a "mini-report" for this section of the lab manual. Describe what you did succinctly, and then what you found accurately. Then explain what the result means and how it relates to some of the concepts in the previous section. You must write using sentences & paragraphs; bulleted lists are unacc ...
EE-36 - International Journal of Advance Research and Innovation
EE-36 - International Journal of Advance Research and Innovation

... [email protected] ...
B++--The Design of A Low-Power Low-Noise Phase Lock
B++--The Design of A Low-Power Low-Noise Phase Lock

... reference signal remains constant or is zero However, if in the process due to some discrepancy a phase error builds up, a control mechanism gets triggered, which acts on the oscillator to counter-balance the so resulted phase error in such a manner that it is reduced to minimum until it is matched. ...
AN-9744 Smart LED Lamp Driver IC with PFC Function
AN-9744 Smart LED Lamp Driver IC with PFC Function

... CLK_GEN; the FL7701 automatically makes a digital reference signal, DAC_OUT. If too high of a capacitor value is connected to VCC, the VCC voltage may not drop enough during the AC input voltage valley region. The ZCD_OUT signal does not trigger correctly and the IC will have an abnormal internal re ...
OP400
OP400

... In the circuit of Figure 31, which is an extension of the standard three op amp instrumentation amplifier, the output current is proportional to the differential input voltage. Maximum output current is ±5 mA, with voltage compliance equal to ±10 V when using ±15 V supplies. Output impedance of the ...
MAX745 Switch-Mode Lithium-Ion Battery-Charger General Description
MAX745 Switch-Mode Lithium-Ion Battery-Charger General Description

... The battery voltage or current is controlled by a current-mode, PWM DC/DC converter controller. This controller drives two external N-channel MOSFETs, which control power from the input source. The controller sets the switched voltages pulse width so that it supplies the desired voltage or current t ...
Aalborg Universitet Single-Phase Shunt Active Power Filters Under Adverse Grid Conditions
Aalborg Universitet Single-Phase Shunt Active Power Filters Under Adverse Grid Conditions

Exam 2
Exam 2

... ____ 11. In your house, two lightbulbs operate at 120 V, but one has a power rating of 25 W while the other has a power rating of 100 W. Which one has the greater current flowing through it? a. 25 W bulb c. both have same current b. not enough information d. 100 W bulb ____ 12. Two space heaters in ...
A4954 - Elecanisms
A4954 - Elecanisms

... The A4954 is designed to operate two DC motors. The output drivers are all low-RDS(on) , N-channel DMOS drivers that feature internal synchronous rectification to reduce power dissipation. The current in each of the two output full bridges is regulated with fixed off-time pulse width modulated (PWM) ...
Ee316_4
Ee316_4

... accuracy independent of R, C, fCLK and input offsets of three devices. As long as these parameters remain stable over the conversion period, they affect both integration phases equally. Hence, long-term drifts are automatically eliminated  Good linearity and resolution possible. Virtually zero diff ...
LMG500 - ZES ZIMMER
LMG500 - ZES ZIMMER

... discharge flat lamp (light tile). Because of the very small group delay between the voltage and current channel, the power consumption is calculated correctly despite these challenging signals. ...
Getting the Full Potential from Your ADC (Rev. B)
Getting the Full Potential from Your ADC (Rev. B)

OPM-1038SW
OPM-1038SW

... The open fuse indicator status output acts very much like an on/off switch. With all three fuses in place and operating properly, this status output has a high resistance value of greater than ten mega-ohms. When one or more of the fuses are open, the status output becomes turned-on with a resistanc ...
Direct Drive Lead Acid Battery Desulfator (Type−3 "Jackhammer")
Direct Drive Lead Acid Battery Desulfator (Type−3 "Jackhammer")

... http://leadacidbatterydesulfation.yuku.com/topic/1162/Direct−Drive−Desulfator−Design?page=1 Brief Description. Most lead acid battery desulfators out there use a flyback design with inductors. While this does work, the inductor can only hold so much energy each pulse. If the battery has a high resis ...
ADM1184 数据手册DataSheet 下载
ADM1184 数据手册DataSheet 下载

... VINx input reaches 0.6 V, the corresponding output is switched to ground if there is 1 V on the VCC pin of the ADM1184. When VINx detects 0.6 V, OUTx is asserted after a 30 μs (typical) delay. ...
< 1 ... 427 428 429 430 431 432 433 434 435 ... 947 >

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.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report