Amplifying Audio

Kieran C
Mind Map by , created over 2 years ago

AS level Electronics Mind Map on Amplifying Audio, created by Kieran C on 03/15/2017.

4
0
0
Kieran C
Created by Kieran C over 2 years ago
Stalin's Russia AS Notes
Asterisked
C2 - Formulae to learn
Tech Wilkinson
C1 - Formulae to learn
Tech Wilkinson
Organic Chemistry
Megan Tarbuck
ASIENTOS DE AJUSTE FINAL Y PREPARACION DE ESTADOS FINANCIEROS
Majo Herrera
Introducing Economics
sarahsing
A level physics ocr year 1 vocab
Emily Kellett
AS Biology- OCR- Module 1 Cells Specification Analysis and Notes
Laura Perry
Cell Structure
megan.radcliffe16
Exchange surfaces and breathing
megan.radcliffe16
Amplifying Audio
1 Block Diagram
1.1 Signal Source
1.1.1 Outputs audio signal
1.1.1.1 AC signal
1.1.1.2 Frequency between 20Hz and 20kHz
1.1.1.3 Amplitude usually a few millivolts
1.2 Pre-Amplifier
1.2.1 Boosts the amplitude
1.2.1.1 Boosts to levels well above noise level other blocks may add to
1.3 Tone Control
1.3.1 Adjusts the frequency balance of the signal
1.3.1.1 Boosts some ranges and cuts others
1.3.1.2 Compensates for imperfect transfer characteristics of the microphone, loudspeaker and human ear
1.4 Volume Control
1.4.1 Varible component that passes a fraction of the current
1.4.1.1 Fraction can be between all the signal of nothing at all
1.4.1.2 Passes the signal from the tone control to the voltage amplifier
1.5 Voltage Amplifier
1.6 Power Amplifier
1.7 Loudspeaker

Media attachments