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University of North Carolina, Charlotte Department of Electrical and Computer Engineering
University of North Carolina, Charlotte Department of Electrical and Computer Engineering

IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE)
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE)

Resistance - science
Resistance - science

... symbol shows the direction in which the current can flow. Diodes are the electrical version of a valve and early diodes were actually called valves. Electricity uses up a little energy pushing its way through the diode, rather like a person pushing through a door with a spring. This means that there ...
Lecture 15 Chapter 28 Circuits
Lecture 15 Chapter 28 Circuits

... a circuit loop the sum of the changes in V is zero, ∆V =0 • Resistance rule – Move through resistor in direction of current V =-iR, in opposite direction V =+iR • Emf rule – Move through emf device in direction of emf arrow V =+E, in opposite direction V =-E ...
BM6203FS
BM6203FS

RSH070P05
RSH070P05

Control apparatus for electronic dimmers
Control apparatus for electronic dimmers

... and 2 which supply current to lamp loads L1 and L2 are 40 nals 50A and 50B of the ?ip-?op circuit is controlled varied by the control apparatus 28 which is actuated by by the signal applied to terminals 47, 49. Pulses may the supervisory control apparatus 30. The electronic dim— be provided by a man ...
DC Circuits
DC Circuits

capacitor
capacitor

... Instantaneous power is the product of v and i . True power (Ptrue) is zero, since no energy is consumed by the capacitor. The rate at which a capacitor stores or returns energy is called reactive power (Pr); units: (VAR). Pr=VrmsIrms ; Pr = V2rms / Xc ; Pr = I2rms Xc ...
Electrostatics/Electric Circuits/Magnetic Fields
Electrostatics/Electric Circuits/Magnetic Fields

... Capacitors are devices that store charge; they are composed of both conductors and insulators. The simplest type of capacitor is the parralel plate capacitor. It consists of two flat conducting plates which are separated by an insulating material known as a dielectric. The seperation between the two ...
LT1033 - 3A Negative Adjustable Regulator
LT1033 - 3A Negative Adjustable Regulator

... IADJ on the output voltage, but the no-load current drain on the regulator will be increased. Typical values for R1 are between 100Ω and 300Ω, giving 12.5mA and 4.2mA no-load current respectively. There is an additional consideration in selecting R1, the minimum load current specification of the reg ...
final_paper
final_paper

MAX1820/MAX1821 WCDMA Cellular Phone 600mA Buck Regulators General Description
MAX1820/MAX1821 WCDMA Cellular Phone 600mA Buck Regulators General Description

... Buck Regulators (VBATT = 3.6V, SHDN = BATT, SKIP = SYNC = GND, VREF = 1.25V (MAX1820 only), TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) ...
DC POWER SUPPLY OPERATION MANUAL
DC POWER SUPPLY OPERATION MANUAL

BD3550HFN
BD3550HFN

AN-694 APPLICATION NOTE Hot Swap and Blocking FET Control Using 2
AN-694 APPLICATION NOTE Hot Swap and Blocking FET Control Using 2

... Figure 3. Full Implementation of Dual ADM1073 Solution for Blocking FET and Hot Swap FET Control ...
ISL9K1560G3 30  STEALTH™ Dual Diode
ISL9K1560G3 30 STEALTH™ Dual Diode

... exhibits low reverse recovery current (IRR) and exceptionally soft recovery under typical operating conditions. This device is intended for use as a free wheeling or boost diode in power supplies and other power switching applications. The low IRR and short ta phase reduce loss in switching transist ...
Sizing Current Transformers Rating To Enhance Voltage Model
Sizing Current Transformers Rating To Enhance Voltage Model

AAT3604B 数据资料DataSheet下载
AAT3604B 数据资料DataSheet下载

... ideal power solution to power OLED, LCD, and CCD applications. The step-up converter offers a true load disconnect feature which isolates the load from the power source when EN1 is pulled low. This eliminates leakage current and isolates the output while the device is disabled. The step-down DC/DC c ...
BD9122GUL
BD9122GUL

Aalborg Universitet Microgrids
Aalborg Universitet Microgrids

UCC28063A - Texas Instruments
UCC28063A - Texas Instruments

... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those included under Recommended Operating Conditions is not implied. Exposure to absolute ...
DESCRIPTION FEATURES ULTRA-PRECISION DIFFERENTIAL
DESCRIPTION FEATURES ULTRA-PRECISION DIFFERENTIAL

MP4030: Application Note for a TRIAC
MP4030: Application Note for a TRIAC

... using the MP4030. The following description summarizes converter operation with active PFC: The diode bridge rectifies the AC line voltage, which then goes to the flyback circuit. When the internal main MOSFET turns on, the transformer’s primary-side current ramps up from zero. The S pin senses this ...
“Comparison Analysis of AC Voltage Controllers Based on
“Comparison Analysis of AC Voltage Controllers Based on

... For each configuration in fig. 1, the experimental setup is reconnected and the experimental waveforms are obtained using storage scope, then the simulation is reconfigured to obtain the corresponding simulated waveforms for comparison and analysis. An example of the experimental connections and the ...
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Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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