Quantcast CLASSIFICATION OF AMPLIFIERS

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
1-3 Figure 1-2.—Amplifiers as used in radio receiver. The audio signal from the detector will then be amplified to make it large enough to drive the speaker of the radio. Almost every electronic device contains at least one stage of amplification, so you will be seeing amplifiers in many devices that you work on. Amplifiers will also be used in most of the NEETS modules that follow this one. Q-1.     What is amplification? Q-2.     Does an amplifier actually change an input signal? Why or why not? Q-3.     Why do electronic devices use amplifiers? CLASSIFICATION OF AMPLIFIERS Most electronic devices use at least one amplifier, but there are many types of amplifiers. This module will not try to describe all the different types of amplifiers. You will be shown the general principles of amplifiers and some typical amplifier circuits. Most amplifiers can be classified in two ways. The first classification is by their function. This means they are basically voltage amplifiers or power amplifiers. The second classification is by their frequency response. In other words what frequencies are they designed to amplify? If you describe an amplifier by these two classifications (function and frequency response) you will have a good working description of the amplifier. You may not know what the exact circuitry is, but you will know what the amplifier does and the frequencies that it is designed to handle. VOLTAGE AMPLIFIERS AND POWER AMPLIFIERS All amplifiers are current-control devices. The input signal to an amplifier controls the current output of the amplifier. The connections of the amplifying device (electron tube, transistor, magnetic amplifier,


Electrical News
ARM Gives Peek at Road Map
ARM disclosed new details of its A72, including three functional...
eetimes.com
Cypress Expands Error Correcting Code For SRAM
As overall SRAM market shrinks, Cypress sees uptick in automotive,...
eetimes.com
EUV Deal Raises Questions
ASML announced it struck a deal to sell 15 EUV...
eetimes.com
Make Field-oriented Motor Control Affordable
Shaft sensors and their wiring make field-oriented motor control pricey,...
eetimes.com
Why Connect Cars?
EE Times will host a radio show on "Why Connect...
eetimes.com
Time Flies Like an Arrow & Fruit Flies Like Bananas
Using a computer to translate something like a technical article...
eetimes.com
NXP-Freescale Mega Merger on Track
Five companies, aside from NXP, were in talks with Freescale,...
eetimes.com
Basic University Research Key to Industry Progress
A basic, precompetitive research base is required to continue to...
eetimes.com
MEMS Seeks its Moore's Law
MEMS provide an alternative route to scaling technology beyond Moore's...
eetimes.com
Wireless Charging Gets Universal Antenna
NuCurrent believe the company's 50 patents in areas such as...
eetimes.com
Friday Quiz: EMI and EMC
EDN's Designer's Guide to Electromagnetic Compatibility, written by Bill Kimmel...
eetimes.com
EEVBlog #736 – World’s First IR Thermal Camera Watch
A quick hack turns a Flir TG165 Thermal camera into...
eevblog.com
Wave of 100th Birthday Celebrations Rolls Around the World
Following the party Max's family held to celebrate what would...
eetimes.com
Qualcomm Seeking Options Beyond Apple, Samsung
Qualcomm's recent earnings reports suggest significant vulnerabilities. Qualcomm is heavily...
eetimes.com
Elvis Sees All in Russia
A Russian company claims it has the first Russian designed...
eetimes.com
Smartwatch Uptick in Mobile Slump
Smartwatches could grow to sales of 400 million units a...
eetimes.com
8 Views of Security from RSA
Security was in focus at RSA Conference with top cryptographers,...
eetimes.com
Electricity, Energy and Global Warming By the Numbers, Part 2
Numerous factors contribute to climate change. In Part 2, we...
eetimes.com
10 Trailblazing Companies For Women In IT
On the following pages, we'll take you beyond the tech...
eetimes.com
ARM Seeks Energy Harvesting Edge in IoT
With battery lifetimes becoming an increasing preoccupation of some of...
eetimes.com
 


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +