How to Identify Appropriate Manufacturers Data Sheet for Electronic Devices

This presentation discusses the different types of amplifiers, their advantages and disadvantages, and possible applications. It also covers the importance of selecting the appropriate manufacturer's data sheet for electronic devices, including the need for descriptive language and illustrative figures. The presentation concludes with recommendations for understanding circuitry before selecting an amplifier.

How to identify Appropriate
manufacturers data sheet for
electronic devices

Introduction
Maximum utilization ofMaximum utilization of
electronic devices depends onelectronic devices depends on
the information on the datathe information on the data
sheetsheet
Presentation is on advantagesPresentation is on advantages
and disadvantages of types ofand disadvantages of types of
amplifiersamplifiers

ObjectivesObjectives
What are the types of the amplifiers manufactured by the
company?
 Advantages
Disadvantages
Possible places of applications

Class A AmplifiersClass A Amplifiers
Simple in design, low distortion and high linearity.Simple in design, low distortion and high linearity.
The zero signal on the output should be more thanThe zero signal on the output should be more than
maximum load currentmaximum load current
AdvantagesAdvantages
Low ripple voltageLow ripple voltage
No switching distortionNo switching distortion
Eliminates Non linear distortionEliminates Non linear distortion
DisadvantagesDisadvantages
Used bulk transformersUsed bulk transformers
Requires two identical transistorsRequires two identical transistors

Class A continues, DiagramClass A continues, Diagram
 Generates sine wave formGenerates sine wave form

Class B Amplifier
Used in two complementary circuitsUsed in two complementary circuits
Out put device switches on and offOut put device switches on and off
continuouslycontinuously
AdvantagesAdvantages
More output per deviceMore output per device
Elimination of even harmonicElimination of even harmonic
DisadvantagesDisadvantages
•High harmonic distortionHigh harmonic distortion
•No need for self biasNo need for self bias

Class B continues; ApplicationsClass B continues; Applications
Data
B1=7V B2=10V R1=4Ω R2=6Ω R3=6Ω
 Used in low cost designUsed in low cost design

Class AB AmplifiersClass AB Amplifiers

Class CClass C
They are simple in the design
Relatively high efficiency and low physical size
Advantages and Disadvantages
High efficiency but with very low linearity .Also reduced dynamic range

Class AB continues…Class AB continues…
A combination of Class A and B
Application
Used in Hi-fi system
Advantages
Linear behaviour
Very simple
Disadvantages
Power dissipation generates heat
Lower power efficiency

Class S Amplifiers
Converts analog input signal to digital
square wave pulses using delta-sigma
modulation
Advantages
Digital signal can achieve efficiency of
100%
Amplifiers are non-linear

Class S continues…..

Class T AmplifiersClass T Amplifiers
Advantages and disadvantages
These kind of Amplifiers are deeply biased
They have audio distortion.

C Amplifiers continues
Advantages
High efficiency
Low physical size
Disadvantages
Low linearity
Reduced dynamic range
Production of more RF
Applications
Used in RF amplifiers

Class D AmplifiersClass D Amplifiers
 Are non linear switching Amplifiers
 No period during the cycle
 Voltage and current wave overlap
Advantages
More than 90% efficient
More power dissipation
Disadvantages
More complex design

Class d continues….Class d continues….
 Applications:
 Used in the sound cards
 Used in the audio sub woofers
.

Circuit TestingCircuit Testing
 Testing follows procedure
Conduct Visual investigationConduct Visual investigation
Take voltage measurementsTake voltage measurements
Test for correct wiring polarityTest for correct wiring polarity
Take ground impedanceTake ground impedance
Measure neutral impedanceMeasure neutral impedance

Circuit Testing Continues…..Circuit Testing Continues…..
 Take electrical measurementTake electrical measurement
 Performance of harmonicPerformance of harmonic
AnalysisAnalysis
 Measure electrostatic ChargesMeasure electrostatic Charges
 Finally capture disturbances ofFinally capture disturbances of
voltage.voltage.

ConclusionConclusion
The knowledge on the types
and applications of various
amplifiers assist in full
utilization
Different amplifiers have
different level of output

Recommendation
 The information given on the
data sheet should always be:
 Fully descriptive
 Written in simple language
that can easily be understood
 A companied with illustrative
figures.
 Understanding of the circuit
should be given priority
before amplifier selection.

ReferenceReference
 Aedenaert, A., De Cleyn, S. H., & Buyle, M. (2012).
 Burreca, F., & Fichera, C. R. (2016).
 Chlo, K., Hong, Y., & Seo, J. (2014).
 Cuce, E., Young, C. H., & Riffat, S. B. (2014).
 Faang, L., Cotton, I., Wang, Z. J., & Freer, R. (2013, June).
 Feng, H., Chen, L., Xie, Z., & Sun, F. (2014).
 Kim, S., Seo, J., Cha, J., & Kim, S. (2013).
 Liang, Y., Wu, H., Huang, G., Yang, J., & Wang, H. (2017).