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Old 10th July 2011, 09:24 PM   #1
tomchr is offline tomchr  United States
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Join Date: Feb 2009
Location: Greater Seattle Area
Default Alternate use for an LM3886 - PSRR/LineReg test set

Folks,

I just completed my latest piece of test gear. A test set for measuring PSRR or line regulation of a power supply. It'll source/sink several amps with a compliance of up to +/-40 V. It has an AC coupled modulation input as well as an AC coupled output monitor output. It's based on an LM3886...

It can also be used as a stereo power amp...

The BNC connectors are 5/8" (16 mm) apart. That's a bit tight. The standard spacing of 3/4" (19 mm) is much preferred. It works, though.

~Tom
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File Type: png LM3886_Amp_Schematics.png (91.4 KB, 68 views)
File Type: jpg LM3886_Amp.jpg (409.4 KB, 62 views)
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File Type: pdf LM3886_Amp_Schematics.pdf (19.3 KB, 9 views)

Last edited by tomchr; 10th July 2011 at 09:26 PM.
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