TAILIEUCHUNG - Electronic Circuits - Part 2

The reader may wonder why the amplifier stages studied in previous chapters are not suited to high-power applications. Suppose we wish to deliver 1 W to an 8- speaker. Approximating the signal with a sinusoid of peak amplitude VP, we express the power absorbed by the speaker as: | Electronic Circuits Part 2 Teacher: Dr. LUU THE VINH Output Stages Chapter 13 & & Power Amplifiers The chapter outline is shown below. Basic Stages Emitter Follower Push−Pull Stage and Improved Variants Large-Signal Considerations Omission of PNP Transistor High-Fidelity Design Heat Dissipation Power Ratings Thermal Runaway Efficiency and PA Classes Efficiency of PAs Classes of PAs PA - Power Amplifier General Considerations The reader may wonder why the amplifier stages studied in previous chapters are not suited to high-power applications. Suppose we wish to deliver 1 W to an 8 - speaker. Approximating the signal with a sinusoid of peak amplitude VP, we express the power absorbed by the speaker as: Where VP = p2 denotes the root mean square (rms) value of the sinusoid and RL represents the speaker impedance. For RL = 8 and Pout = 1 W, Also, the peak current flowing through the speaker is given by VP = 4V () Important observations The resistance that must be driven by the .

• Điện - Điện tử
• Electronic Circuits
• Considerations
• Heat Dissipation
• Efficiency
• PA Classes
• Improved Variants
• Digital electronic circuit
• First Order transients
• Linear electrical networks
• Power in digital circuits
• Digital circuits
• Second order circuits
• The operational amplifier abstraction
• Electronic Control
• system Applications
• control circuitry
• conditioning circuits
• Data transmission circuits
• curriculum design electrical and electronic applications
• electronic technology
• electronic circuits textbooks
• electrical systems
• electronics engineering
• Fundamentals and applications
• Logic circuits
• Test equipment and measurements
• Fault finding
• Sensors and interfacing
• Circuit simulation
• The 555 timer
• curriculum design
• panel of the machine
• the machine control
• Electronic Engineering
• Semiconductors
• Diodes
• Bipolar Junction Transistors
• Switching Circuits
• Math Converters
• basic electronics
• practical electronics
• electrical engineering
• electronic components
• hand tools
• Lecture Electronic materials
• Electronic materials
• Understanding BJT circuits
• Clearing up some confusion
• The collector emitter
• Simplified ebers moll
• circuit applications
• power electronics
• digital electronic
• electrical applications
• electronic documents
• electronic dictionaries
• electrical system design
• electronic applications
• methods of power management electronic system
• Electronic principles
• Bài giảng Electrical and electronic principles
• Magnetically coupled circuits
• Mutual inductance
• Input impedance
• Resonant circuits
• outline processor
• electrical
• electronic textbooks
• matlab tools
• systems analysis
• introducing PSAT
• Electrical and Electronic Circuits
• Algebraic and graphical simbology
• Advice for the designer
• Nomenclature
• System of units
• generalizations
• Power become
• Card Power operator
• power operator
• architecture built
• auto ciphertext
• pic programming
• control circuits
• circuit design
• implicitly or otherwise
• Electrical fundamentals
• Passive components
• Alternating voltage
• Power supplies
• Operational amplifiers
• Transistor Circuits
• software engineering
• computer programming
• tips programming
• computer software