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Chip Amps Amplifiers based on integrated circuits

Neurochrome LM3886DR Build
Neurochrome LM3886DR Build
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Old 14th September 2017, 08:52 AM   #271
AndrewT is offline AndrewT  Scotland
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Shame.
I found a link for downloadable software some while ago, but can't find it now.
Another Member was asking about device location details, but I was unable to refer him to the manufacturers' recommendations.
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Old 14th September 2017, 11:17 AM   #272
mickeymoose is offline mickeymoose  Canada
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Heat Sink Peltier Cooler Heat Spreaders Site Map | Novel Concepts
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Old 14th September 2017, 11:29 AM   #273
AndrewT is offline AndrewT  Scotland
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Heat Sink Peltier Coolers Heat Spreader Calculator | Novel Concepts
This calculator will not work for a vertically oriented passive heatsink. Nor will it show the temperature profile over that vertical surface/interface.
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Old 9th February 2018, 02:49 PM   #274
Mixi is offline Mixi  Austria
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can anyone tell me which class of amp (AB ?) the lm3886dr is? i hope this isn't a super silly question ....
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Old 9th February 2018, 06:21 PM   #275
adason is offline adason  United States
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AB
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Old 9th February 2018, 08:01 PM   #276
HSonHSon is offline HSonHSon
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This is a trick question.. depends on the voltage you give it... if you give it enough volt, it becomes class A.
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Old 9th February 2018, 10:58 PM   #277
adason is offline adason  United States
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Its like magic!
No, no amount of voltage will convert class AB design into true class A.
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Old 9th February 2018, 11:54 PM   #278
tomchr is offline tomchr  Canada
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The LM3886DR is Class AB. In order to change it to Class A you would have to increase its bias current dramatically. This is not possible without redesigning the LM3886 IC.

Tom
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Old 11th February 2018, 12:15 PM   #279
Mixi is offline Mixi  Austria
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thanks!
TI list the lm3886 as a Class D amp (link),. Would it be very difficult to explain how it "turns into" a class AB in this application?

Best, Michi
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Old 11th February 2018, 12:22 PM   #280
scottjoplin is offline scottjoplin  Wales
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Thankfully they get it right in the parametrics. Bare in mind it could have been made and that could have been written almost anywhere in the world
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