• Study Resource
  • Explore
    • 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
Dec 2005 Photoflash Capacitor Chargers Keep Up with Shrinking
Dec 2005 Photoflash Capacitor Chargers Keep Up with Shrinking

Sensor Interface
Sensor Interface

... FET load resistors: The internal pyroelectric elements are connected to the gates of the on chip FET transistors and also to the 0V pyro supply connection. These elements act as AC signal sources responding in sympathy to the intensity of radiation received from the lamp via integral optical filter ...
Basic Electronics
Basic Electronics

... A circuit has the following resistances Ω. What is the total resistance in the circuit? (6 marks) Select any true statements about this circuit by applying a yellow highlight on the statement or letter and a red highlight on an incorrect statement. a. This is a series/parallel circuit in which there ...
LTC1046 - Inductorless 5V to -5V Converter
LTC1046 - Inductorless 5V to -5V Converter

... TYPICAL PERFOR A CE CHARACTERISTICS Output Resistance vs ...
PowerPoint Lecture Chapter 34
PowerPoint Lecture Chapter 34

Class AB
Class AB

... A pure class 'A' amplifier is very inefficient and generally runs very hot even when there is no audio output. The current flowing through the output transistor(s) (with no audio signal) may be as much as the current which will be driven through the speaker load at FULL audio output power. Many peop ...
Building electrical circuits
Building electrical circuits

... which can power a light for two hours is added to an identical battery, the output is still 5 volts but the lamp will now stay on for four hours. ...
500mA LDO in 1.6mm x 1.6mm Package
500mA LDO in 1.6mm x 1.6mm Package

... use with low-ESR ceramic chip capacitors. High-ESR capacitors may cause high-frequency oscillation. The output capacitor can be increased, although performance has been optimized for a 1µF ceramic output capacitor and doing so does not improve significantly with larger capacitance. X7R/X5R dielectri ...
Data Sheet
Data Sheet

AP 1 Quick Review on Electricity
AP 1 Quick Review on Electricity

... increase the total current, but the individual currents will not change. The equivalent resistance of a parallel circuit will always be less than the value of the smallest resistor in the circuit. More power is usually generated in parallel circuits. Smaller resistors get more power than larger resi ...
Resisting – Revision Pack (P6) Resistance and Current: What
Resisting – Revision Pack (P6) Resistance and Current: What

... a circuit – it pushes the current along (as seen to the left). Resistance (R) = Voltage (V) / Current (I) R = Ohms, V = Volts, I = Amps What affects resistance? The resistance of a wire is dependent upon its length. A variable resistor (symbol to the left) works by changing the lengths of wire in th ...
an2050 application note - All
an2050 application note - All

... this method is clear if you look at fig 12c where the output signal is correct. If the resistance value to be inserted is too small (the same order of magnitude of Rt) the switching frequency will be affected by both Rt and Rslope. To avoid this problem an emitter follower could be interposed betwee ...
3 2 4 1
3 2 4 1

... • Stabilizing bias current of NPN transistors and FET's from 100µA to 20mA ...
16.3 Resistance and Ohm`s Law
16.3 Resistance and Ohm`s Law

Bip Transistor 15V 0.7A VCE(sat);35mV max. PNP Single CP
Bip Transistor 15V 0.7A VCE(sat);35mV max. PNP Single CP

Low-Dropout Li-Ion Charge-Control IC With
Low-Dropout Li-Ion Charge-Control IC With

Multivibrator
Multivibrator

... ) Since 01 conducts and 02 off hence Vc1 = OV and Vc2 = Vcc· Due to higher voltage at Vc2• capacitor C2 will be charged via R4 (low resistance path because R4
Evaluation of the Radiation Tolerance of Several Generations of
Evaluation of the Radiation Tolerance of Several Generations of

EET 251 Unit 2
EET 251 Unit 2

... propagation delays for low-to-high transitions (tPLH) and high-to-low transitions (tPHL). A device with a smaller propagation delay can run faster (at a higher frequency) than a device with a higher propagation delay. ...
RT9241A/B - Tehnari.ru
RT9241A/B - Tehnari.ru

... PWM controller, the output voltage is locked at the VREF of error amplifier and the error signal is used as the control signal VC of pulse width modulator. The PWM signals of different channels are generated by comparison of EA output and split-phase saw-tooth wave. Power stage transforms VIN to out ...
Using the Catalog Specifications to Determine MMIC
Using the Catalog Specifications to Determine MMIC

... V is the DC voltage at the bias terminal of the device. For voltage-operated models such as the MNA series it is simply the supply voltage. For current-operated models such as ERA it is the voltage generated by the device when bias current is applied to it; if actual measurement is not practical, us ...
L6452
L6452

... Print Head Block Diagram (Figure 5.) At first we have a constant current source, which can be disabled by an external pin (OnEnable) or by a control register, described later. The value of the current can be programmed by an external resistor, and is given by: V ref ⋅ 4 I CCS = --------------------2 ...
DC to DC Isolated Converter
DC to DC Isolated Converter

... UL/cUL listed, UL file E200031, UL508/CSA - C22.2 No. 142-M1987 for ordinary locations. Class I, Division 2, Groups A, B, C, D Hazardous Locations ...
Electronics Technology Fundamentals
Electronics Technology Fundamentals

Powerpoint Slides
Powerpoint Slides

... The lightbulbs in the circuit below ...
< 1 ... 685 686 687 688 689 690 691 692 693 ... 984 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report