• 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
The Zen Variations - Part 2
The Zen Variations - Part 2

... of an active current source which was constant for DC characteristics but variable at AC frequencies and which could track an arbitrary percentage of output current to a load, relieving the active single-ended Class A gain device of some of the work. As a practical matter for audio, the best figure ...
Class B Amplifier
Class B Amplifier

... 3. There is negligible power loss at no signal. Disadvantages of Class B as compared with class A operation 1. The harmonic distortion is higher, 2. Self-bias cannot be used, and 3. The supply voltage must have good regulation. ...
PRESETTABLE DIVIDE-BY
PRESETTABLE DIVIDE-BY

... fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. The HCF4018B consist of 5 Johnson counter stages, buffered Q outputs from each stage, and ...
Application Note AN-3010 Using the QVE00033 Surface Mount Phototransistor Optical Interrupter Switch
Application Note AN-3010 Using the QVE00033 Surface Mount Phototransistor Optical Interrupter Switch

... The QVE00033,phototransistor optical interrupter switch, consists of an infrared LED emitter that is optically coupled to a phototransistor detector through a 0.4mm aperture on both sides. The emitter and detector are separated by a slot, 2mm wide and 3.7mm deep. The QVE00033 is configured in an SMD ...
The Ideal Op-Amp
The Ideal Op-Amp

Using Optical Isolation Amplifiers in Power Inverters for Voltage
Using Optical Isolation Amplifiers in Power Inverters for Voltage

... The down-scaled input voltage is filtered by the anti-aliasing filter formed by R2 and C1, with corner frequency of 159 kHz (the value of R1 is usually much larger than R2, therefore neglected in calculation), and then sensed by the ACPL-C87X. The galvanically isolated differential output voltage (V ...
EUP2571  White LED Step-Up Converter In Tiny SOT-23 Package
EUP2571 White LED Step-Up Converter In Tiny SOT-23 Package

... specifically designed to drive white LEDs. The Step-up converter topology allows series connection of the white LEDs so the LED currents are identical for uniform brightness. The EUP2571 switches at 1.1MHz, allowing the use of tiny external components. The input and output capacitor can be as small ...
BJT - AC Analysis (Common Emitter Part 1)
BJT - AC Analysis (Common Emitter Part 1)

... Voltage transfer characteristic, VO versus VI ...
lec6-elec
lec6-elec

KSD169 1 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings
KSD169 1 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings

... when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
SUBELEMENT T4 -Radio and electronic fundamentals
SUBELEMENT T4 -Radio and electronic fundamentals

Circuits Section 4
Circuits Section 4

...  When there is a complete circuit, current is flowing.  This means that electrons are moving from one atom ...
MJD340 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings
MJD340 NPN Epitaxial Silicon Transistor Absolute Maximum Ratings

... device or system whose failure to perform can be or (b) support or sustain life, or (c) whose failure to perform reasonably expected to cause the failure of the life support when properly used in accordance with instructions for use device or system, or to affect its safety or effectiveness. provide ...
BJT in Saturation Mode
BJT in Saturation Mode

373KB - NZQA
373KB - NZQA

... Electrons flow on to the capacitor fast initially (current is maximum) and so voltage rises rapidly. Q ( V = and C is constant) C As more and more charges accumulate on the plates, it will be harder for electrons to accumulate on the plates due to repulsive forces. Electrons will then start flowing ...
Analog Input / Output Modules
Analog Input / Output Modules

... allow the connection of a wide range of sensors and actuators. A minimum 14-bit resolution makes it ­possible to also measure signals that do not fully utilize the measuring range (e.g. 0 to 5 V) with a sufficiently high resolution. Temperatures are playing an important role in an increasing number ...
Electronic Circuits
Electronic Circuits

... where v is measured in cycles per second or Hertz, C is measured in Farads, and L is measured in Henries. If a speaker is placed in the circuit, it will generate sound at this frequency. For an audible sound  must be in the range of 30-20,000 Hz. Since inductors always have resistance, which dissip ...
Nodal Analysis
Nodal Analysis

1 Experiment #5: Ohm`s Law Purpose: To measure the equivalent
1 Experiment #5: Ohm`s Law Purpose: To measure the equivalent

Ohm`s Law relates the voltage, current and resistance of a circuit. It
Ohm`s Law relates the voltage, current and resistance of a circuit. It

Non-isolated Constant Current Linear LED Driver BL8312
Non-isolated Constant Current Linear LED Driver BL8312

... REFLOW SOLDERING CONDITIONS (I / R convection or VPR Reflow) ...
Electric Circuit Theory, Experiment 1:The Linear Resistor and OHM`s
Electric Circuit Theory, Experiment 1:The Linear Resistor and OHM`s

... each of the instruments to be used. (Recall that there is no instrument panel object for the triple power supply; you must use a Direct I/O object.) These objects will be used to set the default configurations for the instruments; they will not be connected by wires to anything else on the screen. I ...
BD234/ 236/ 238 PNP Epitaxial Silicon Transistor
BD234/ 236/ 238 PNP Epitaxial Silicon Transistor

... when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
DM74LS32 Quad 2-Input OR Gates
DM74LS32 Quad 2-Input OR Gates

... FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices o ...
MMST3904
MMST3904

< 1 ... 182 183 184 185 186 187 188 189 190 ... 235 >

Wilson current mirror



A Wilson current mirror is a three-terminal circuit (Fig. 1) that accepts an input current at the input terminal and provides a ""mirrored"" current source or sink output at the output terminal. The mirrored current is a precise copy of the input current. It may be used as a Wilson current source by applying a constant bias current to the input branch as in Fig. 2. The circuit is named after George R. Wilson, an integrated circuit design engineer who worked for Tektronix. Wilson devised this configuration in 1967 when he and Barrie Gilbert challenged each other to find an improved current mirror overnight that would use only three transistors. Wilson won the challenge.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report