Class A Amplifiers A Brief Explanation
Class A Amplifiers A Brief Explanation
Amplifiers From Ideal to Real
Amplifiers From Ideal to Real
Class D Audio Amplifier Design (PDF 54p)
Theory of Class D operation, topology comparison.
How to drive the gate, key parameters in gate drive stage.
How to choose, tradeoff relationships, loss calculatio
Common Cathode Amplifier Design Ideas
Although not that popular, the common-cathode amplifier is one of my favorite tube circuits�with good cause, as it offers low input capacitance, low distortion, no phase inversion, and two inputs, the second of which can readily accept feedback from the output or a sampling of power supply noise, to null the noise at the output.
Fully Integrated CMOS Power Amplifier Design Using the Distributed Active Transformer Architecture
T
HE DESIGN of a fully integrated power amplifier with a
reasonable output power, efficiency, and gain remains one
of the major challenges in today�s pursuit of a single-chip integrated transceiver. Although several advances have been made
in this direction, a truly fully integrated CMOS power amplifier
at watt level output power has not been reported to this date.
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Recently there has been a resurgence of two "ancient" technologies - vacuum tube (valve) amplifiers and Class-A systems. The big question is .... is there a difference? This discussion centres on the Class-A amplifier, and explains (or attempts to) how it is different from a conventional power amplifier.
Amplifiers: From Ideal to Real
Amplifier specifications: Gain, Gain-Bandwidth Product, Common-Mode Rejection Ratio, Settling Time, Input Impedance, etc are explained and compared for different categories of amplifier. Gain as a function of frequency is dealt with in particular.
A Single Supply Op Amp Circuit Collection (PDF 27p)
There have been many excellent collections of op-amp circuits in the past, but all of them focus
exclusively on split-supply circuits. Many times, the designer who has to operate a circuit from a
single supply does not know how to do the conversion.
Single-supply operation requires a little more care than split-supply circuits. The designer should
read and understand this introductory material.
Op Amps For Everyone (PDF 464p)
The solution was to first build an amplifier that had more gain than the application required. Then some of the amplifier output signal was fed back to the input in a manner
that makes the circuit gain (circuit is the amplifier and feedback components) dependent
on the feedback circuit rather than the amplifier gain.
Operational Amplifiers Basic Concepts (PDF 50p)
� Definition of function - what you want.
� Block diagram - translate into circuit functions.
� First Design Review.
� Circuit design - the details of how functions are
accomplished.
� Component selection
� Schematic
� Simulation
� Prototyping of critical sections
� Second Design Review.
� Fabrication and Testing.
The Pros and Cons of Amplifier Design - Free eBook The Pros and Cons of Amplifier Design - Download ebook The Pros and Cons of Amplifier Design free
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The Pros and Cons of Amplifier Design
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