Intermediate 20 Watt Power Amplifier - Page 2 - Electronic Circuits Projects Diagrams Free

jfire · 2nd February 2007, 05:01 PM

hello guys i need a 200 watt audio amplifier for my major project,
i need a stable and working ckt which looks a big project plz try to help me

**Nigel Goodwin** · 2nd February 2007, 07:14 PM

Well copying someone elses work probably isn't going to get you much of a mark?. But try here! http://www.ampslab.com/projects.htm

palesha · 22nd April 2007, 05:02 AM

Here is the list of ic's. little old but ok.
Now new development r class D based & not suitable for newbies.

audioguru · 22nd April 2007, 01:03 PM

How far would I need to drive to buy old low power Russian amplifier ICs?? About 20,000km?

Blatman Bond · 5th June 2007, 04:04 PM

Is there anyone interest with creating new Hi-End Audio Amplifier thread?
I've initiate it, but I've no access to do it.

I'll help to start it with my 7th version K32 that been fixed in dec2005.
And also analyze old halcro schematic.

audioguru · 5th June 2007, 04:16 PM

There are lots of good audio amplifier schematics on the web.

Blatman Bond · 6th June 2007, 09:46 AM

But not here. Nor the halcro's.
Just want to offer.

Blatman Bond · 6th June 2007, 09:57 AM

How about this historical article:
http://www.edexcel.org.uk/VirtualCon...list_units.pdf
"High Performance Audio Power Amplifiers for Music Performance and. Reproduction (Butterworth-Heinemann, 1997)".
It contains much great invention and schematic, also devices.

johnzie · 17th November 2007, 09:43 AM

tda2005 or lm2005 is not really effetive 20 watts power output... it is usually used for a booster amplification in car audio....

skydemon2008 · 5th March 2008, 12:39 PM

is there any other better power amp that can be used for a radio? what is the suitable power range that can be used for a radio?

audioguru · 5th March 2008, 02:06 PM

Quote:

Originally Posted by skydemon2008

is there any other better power amp that can be used for a radio? what is the suitable power range that can be used for a radio?

The power range of an amplifier has nothing to do with a radio.
Unless you are worried that a speaker that is strong enough for high power is too big and heavy for a little radio.

You can make an amplifier with thousands of watts of power. Then you can use a powerful speaker like this very powerful Jackhammer:

shokjok · 20th May 2008, 03:08 AM

In the schematic, pins 1 and 2 are reversed. It won't sound good if assembled according to this diagram. It cross-references to an NTE1396 ( 11-pin SIP).

Master scientist · 22nd May 2008, 05:11 AM

a simple audio amplifier that can deliver 45 watts of power if supplied with a dc more than 12 volts say at least 14.4 volts

audioguru · 22nd May 2008, 05:21 AM

Car radio amplifiers are bridged and deliver about 18W per channel to a 4 ohm speaker at clipping with a 14.4V supply. Even the ones that advertise 200 Whats.

Philips have some car radio amp ICs with a voltage doubler for nearly 4 times more power.

mneary · 22nd May 2008, 06:33 AM

Quote:

Originally Posted by Master scientist

a simple audio amplifier that can deliver 45 watts of power if supplied with a dc more than 12 volts say at least 14.4 volts

Really simple! No part numbers or component types. Maybe 45 watts square wave into 2 ohms. Do you enjoy square waves? They are a bit harsh for my taste.

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2nd February 2007, 05:01 PM	(permalink)
jfire	hello guys i need a 200 watt audio amplifier for my major project, i need a stable and working ckt which looks a big project plz try to help me

2nd February 2007, 07:14 PM	(permalink)
Nigel Goodwin	Well copying someone elses work probably isn't going to get you much of a mark?. But try here! http://www.ampslab.com/projects.htm __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

22nd April 2007, 01:03 PM	(permalink)
audioguru	How far would I need to drive to buy old low power Russian amplifier ICs?? About 20,000km? __________________ Uncle $crooge

5th June 2007, 04:04 PM	(permalink)
Blatman Bond	High End Audio Amplifier Is there anyone interest with creating new Hi-End Audio Amplifier thread? I've initiate it, but I've no access to do it. I'll help to start it with my 7th version K32 that been fixed in dec2005. And also analyze old halcro schematic.

5th June 2007, 04:16 PM	(permalink)
audioguru	There are lots of good audio amplifier schematics on the web. __________________ Uncle $crooge

6th June 2007, 09:46 AM	(permalink)
Blatman Bond	But not here. Nor the halcro's. Just want to offer.

6th June 2007, 09:57 AM	(permalink)
Blatman Bond	How about this historical article: http://www.edexcel.org.uk/VirtualCon...list_units.pdf "High Performance Audio Power Amplifiers for Music Performance and. Reproduction (Butterworth-Heinemann, 1997)". It contains much great invention and schematic, also devices.

17th November 2007, 09:43 AM	(permalink)
johnzie	nice tda2005 or lm2005 is not really effetive 20 watts power output... it is usually used for a booster amplification in car audio....

5th March 2008, 12:39 PM	(permalink)
skydemon2008	is there any other better power amp that can be used for a radio? what is the suitable power range that can be used for a radio?

20th May 2008, 03:08 AM	(permalink)
shokjok	In the schematic, pins 1 and 2 are reversed. It won't sound good if assembled according to this diagram. It cross-references to an NTE1396 ( 11-pin SIP).

22nd May 2008, 05:21 AM	(permalink)
audioguru	Car radio amplifiers are bridged and deliver about 18W per channel to a 4 ohm speaker at clipping with a 14.4V supply. Even the ones that advertise 200 Whats. Philips have some car radio amp ICs with a voltage doubler for nearly 4 times more power. __________________ Uncle $crooge