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Audio Circuits: Power Amplifiers
Page 4
Audio
Circuits -- Main Page
Audio Power Amplifiers: #
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Last Updated on:
Monday, October 26, 2009 02:59 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Passive Stereo Matrix for M-S Mic Technique - AS055 Jenson Transformer Application
Note (app note 11/02) |
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Pencil Tube Phono Preamp - …(schematic added 05/08) |
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Phono Preamp - Tube design... (circuit design added 7/06) |
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Portable Headphone Amplifier - 3V Battery powered High Performance unit (added
9/04) |
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Portable Microphone Preamplifier - High headroom input circuitry. 9V Battery
powered. (added 9/04) |
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Power Amp Bridge Adapter - A conventional adapter for bridging power amplifiers
(schematic added 6/07) |
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Power Amp using a TDA2003 - This is the weakest amp on my site. There are weaker
ICs available, but I won't add them until sonmeone actually asks for them. Note that
the circuit is quite simple, the IC even seems to be DC biased internally on both
inputs. (circuit design added 7/06) |
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Power Amp using a TDA2005 - This is a stereo IC, so that you can make a stereo amp
with a single IC. The amp is internally DC-biased and the amplification is also set
internally. Don't even try to set a different amplification, it's no use. There are
also schematics of bridged amps with this IC, but I think it's a fraud the distortion
grows one decimal order higher..... (circuit design added 7/06) |
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Power Amp using a TDA2007 - This is a stereo IC, so that you can make a stereo amp
with a single IC. The amp is internally DC-biased and the amplification is also set
internally. Don't even try to set a different amplification, it's no use. There are
also schematics of bridged amps with this IC, but I think it's a fraud the distortion
grows one decimal order higher (general property of bridged configurations) (circuit
design added 7/06) |
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Power Amp using a TDA2009 - This is a stereo IC, so that you can make a stereo amp
with a single IC. The amp is internally DC-biased and the amplification is also set
internally. Don't even try to set a different amplification, it's no use. There are
also schematics of bridged amps with this IC, but I think it's a fraud the distortion
grows one decimal order higher (general property of bridged configurations). (circuit
design added 7/06) |
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Power Amp using a TDA2030 - For me, this IC is an essential classic. It behaves
almost exactly like a regular op-amp, you can have lots of fun experimenting with it.
The two clamping diodes on the output protect the output transistors against glitches
caused by complex load (speaker sets). The Boucherot's cell on the output is typical
for power amps. Generally speaking, this IC is slow, which means both higher THD and
no problems with oscillations.... (circuit design added 7/06) |
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Power Amplifier Clipping Indicator - (schematic / circuit design added 9/02) |
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Power Considerations for the TC4864 Audio Power Amplifier - Microchip Application
Note Published 18-Jul-01 (app note added 2/06) |
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Power Down for Portables - 06/21/01 EDN-Design Ideas: James Prescott Joule first
formulated the relationship between electrical current and dissipated power in the
19th century. Joule's Law states that the power a circuit dissipates is equal to the
square of the current times resistance, (P=I 2 R). The SI (International System)unit
of work bears Joule's name in honor of this discovery.....(design idea added 12/04) |
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Pushpull Class a 2a3 Stereo Amp - (diagram added 6/03) |
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Pushpull Class a Amp using Type 5687 Dual Triodes - (diagram added 6/03) |
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Qsx Mark Ii the Extreme Phono RIAA Amplifier - (circuit added 7/02) |
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Quadraphonic Amplifier - This is a four channel amplifier ideally suited for use
with quadraphonic equipment such as a Sound Blaster Live card. (added 4/02) |
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Reference Design for the Tas5110dad Digital Audio PWM Power Output Stage - The
true digital audio amplifiers (TDAA) system consists of a PCM–PWM modulator device and
a PWM power output device. The PCM–PWM processor accepts a serial PCM digital audio
stream and converts it to a 3.3-V PWM audio stream. The TDAA output stage provides a
large-signal PWM output. The digital PWM....(added 3/05) |
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Riaequalized Stereo Phono Preamp - (electronic circuit added 7/03) |
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Ribbon Mic Matching Transformer - AS067 Jenson Transformer Application Note (app
note 6/07) |
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Audio Power Amplifiers: #
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