Contact

About

Privacy

Sitemap

Instagram

Electronic Circuit

1001++ Electronic Circuit
Schematic

Menu

Home

555 Circuits

Audio

Power Supply

Power Amplifier

Inverter

Home
High power amplifier 20 Watt Class A
Power Amplifier Circuit

Thursday, July 26, 2012

20 Watt Class A Power Amplifier Circuit

Publisher Electronic Circuit

Published Thursday, July 26, 2012

A single-ended Class-A amplifier is
essentially one where there is only one active driven output device. The passive
"load" may be a resistor, an inductor (or transformer) or - as in this amplifier
- a current sink. Of the three basic options, the current sink offers the
highest linearity for the lowest cost, so is the ideal choice.

Some esoteric (some might say
idiosyncratic) designs use inductors or 1:1 transformers, but these are bulky
and very expensive. Unless made to the utmost standards of construction, they
will invariably have a negative effect on the sound quality, since the losses
are frequency dependent and non-linear.

This amp uses the basic circuitry
of the 60W power amp (see Index), but modified for true Class-A operation - it
should be pretty nice! This amp has been built by several readers, and the
reports I have received have been very positive.

With simulations,
everything appears to be as expected, but although I have yet to actually build
it and test it out thoroughly, no-one has had any problems so far. Using +/-20
Volt supplies - either conventional, regulated or using a capacitance
multiplier, it should actually be capable of about 22 W before clipping, but
expect to use a big heatsink - this amp will run hot.

Source :
http://sound.westhost.com/project10.htm

Related Circuit

High power amplifier

Electronic Circuit

Electronic Circuit is a good site for hobbyist also who would like to try DIY
because it shared good circuits. If you have a personalized circuit requirement
you may feel free to request it through the comment box or contact me.

Next Post

Previous
Post

EmoticonEmoticon

Subscribe to: Post Comments (Atom)

Tools

Free PCB Design Software -
EasyEDA
Draw
Schematic and Board here:
https://easyeda.com/editor
Free Online Gerber
Viewer
Cheap PCB Manufacturing

Power Amplifier 2SC5200 2SA1943

Trending Circuit

500W
Power Amplifier with 2SC2922, 2SA1216

Subwoofer
booster circuit

2000W
high power amplifier 2SC5359 2SA1987

Turbo
Bass with IC LM324

600
Watt Mosfet Power Amplifier with PCB

600W
Audio Amplifier Circuit with 2SC5200 2SA1943

2800W High Power Amplifier Circuit

Simple
10W High Power LED Driver Circuit

Power
Amplifier Circuit for Audio PC

Subwoofer
Module Amplifier using 4558

Electronic Circuit Archive

►  2017
(26)

►  February
(8)

►  January
(18)

►  2016
(328)

►  December
(11)

►  November
(9)

►  October
(39)

►  September
(82)

►  August
(26)

►  July
(3)

►  June
(20)

►  May
(5)

►  April
(40)

►  March
(49)

►  February
(39)

►  January
(5)

►  2015
(20)

►  December
(15)

►  November
(3)

►  October
(1)

►  March
(1)

►  2014
(2)

►  November
(1)

►  July
(1)

►  2013
(5)

►  October
(1)

►  September
(1)

►  July
(1)

►  June
(1)

►  March
(1)

▼

2012 (383)

►  December
(1)

►  August
(7)

▼

July (39)

12V
Battery Checker Circuit

Automatic
light activated switch circuit

Eight
Band Sub-Woofer Graphic Equaliser

Fluorescent
Tube Basics

Ballast
and Starter Fluorescent Lamp

LNB
Cable Data Transceiver Circuit

500Watt
Power Amplifier Circuit

Car
Wiper Control Using 555

Circuit
Diagram of Remote Control Tester

230V
Flasher Circuit

20
Watt Class A Power Amplifier Circuit

Simple
condenser microphone circuit

Car
Backup Alarm Circuit

Circuit
3 LED battery monitor

Two
Colour LED Light Bar Circuit

LM12
- High Power Amplifier circuit

Class
B power amplifier circuit

Filter-PreAmp
Subwoofer Circuit

Non-Switching
Current-Drive Amplifiers

3-Way
Crossover Speaker Circuit

10
W Audio Amplifier Circuit

TDA7294
150 W Power Amplifier

2
Way - Speaker Crossover circuit

Simple
Power Amplifier Circuit [2N3055]

Mono
to Stereo Audio Signal Circuit Converter

LED
Audio Level Meter Circuit

OCL
Power Amplifier Circuit MJ15003,MJ15004

Inverter
circuit 12V to 220V 100W

0-300V
Variable High Voltage Power Supply

Adjustable
Power Supply 1.2 – 30V 5A using LM338

Circuit
High-Voltage Generator with HEX FET

Subwoofer
Speaker box design

Automatic
detectors water tank pump circuit

Doorphone
Intercom Circuit

Emergency
Light, & Flashlight

Temperature
Candle Using LED

120
Volt 4 LED Light Circuit

Dual-Mode
Microphone Pre-Amplifier

20
Watt Power Amplifier Circuit

►  June
(31)

►  May
(16)

►  April
(140)

►  March
(112)

►  February
(36)

►  January
(1)

►  2011
(405)

►  December
(2)

►  November
(1)

►  October
(1)

►  September
(6)

►  August
(1)

►  July
(1)

►  May
(115)

►  April
(146)

►  March
(44)

►  February
(77)

►  January
(11)

►  2010
(2)

►  December
(1)

►  November
(1)

►  2009
(1)

►  March
(1)

Circuit Labels

Search Category
555 Circuit ( 24)
Accu charger ( 7)
Arduino ( 2)
Audio ( 114)
Audio effect ( 32)
Auto Sound System ( 1)
Booster Amplifier ( 2)
Car amplifier ( 26)
Car Stereo - Articles ( 7)
CDI ( 1)
Charger ( 12)
Charger Circuit ( 44)
Component's ( 17)
Crossover ( 1)
Detector ( 2)
Digital ( 34)
Fish Caller electronics ( 1)
Fluorescent lamp ( 14)
Headphone ( 10)
High power amplifier ( 125)
Home Theater ( 20)
Horn ( 2)
ICs audio amplifier ( 83)
Indicator ( 17)
Input output signal ( 7)
Installation ( 1)
Intregated Circuit Amplifier ( 107)
Inverter ( 13)
Inverter Circuit ( 36)
LED ( 40)
Lights ( 30)
Low ( 1)
Low Power Amplifier Circuit ( 42)
Low voltage amplifier ( 6)
Microcontrol ( 7)
Microcontroller ( 20)
Microphone ( 6)
Mobile ( 5)
Mosfet Amplifier ( 6)
motor ( 4)
Nicad Battery charger ( 4)
OCL power amplifier ( 5)
Operational Amplifier Circuit ( 16)
Oscilator ( 2)
Other Circuit ( 45)
Phone ( 7)
Phone battery Charger ( 8)
Power Amplifier ( 159)
Power Supply ( 33)
Power Supply Circuit ( 79)
Pre-Amplifier ( 31)
Product Reviews ( 6)
Protection circuit ( 1)
Protector ( 15)
Radio ( 8)
Radio signal ( 27)
Relay ( 6)
RF Amplifier ( 1)
Robot ( 6)
Saver circuit ( 2)
Sensor ( 42)
Serious ( 1)
Signal ( 14)
Simple Circuit ( 1)
Siren ( 1)
Software ( 4)
Solar charger ( 1)
Sound ( 4)
Sound System Articles ( 38)
Speaker ( 10)
Subwoofer - Article ( 7)
Subwoofer Amplifier ( 41)
Surround audio amplifier ( 17)
Switch ( 10)
System ( 1)
Systems ( 1)
Technology ( 3)
Television ( 30)
Tester ( 15)
Timer ( 7)
Tone control ( 41)
Tools ( 1)
Transceiver circuit ( 2)
Transistor Amplifier ( 25)
Transmitter ( 1)
Tutorials ( 15)
USB ( 13)
Wireless ( 5)

About Elcircuit.com

ELCIRCUIT.COM Discover about 1001+ electronics circuit
schematic you can find here its very large database of electric circuit.

Electronic Network Sites

EasyEDA

EEWeb
Tools

Schematics

Circuit
Simulator

Sixty
SecondTech

Power
Electronics

Circuit Diagram and Layout
Modules

Newsletter

Subscribe electronic circuit via email.

Copyright © 2009 - Electronic
Circuit All Right Reserved