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Chip Amps Amplifiers based on integrated circuits

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Old 31st October 2003, 07:18 PM   #1
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Default bridge cct

Has anyone seen this bridge application in EDN Online?
http://www.reed-electronics.com/ednm...10%2F30%2F2003
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Old 31st October 2003, 07:57 PM   #2
GregGC is offline GregGC  Canada
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Looks good, though, this is a good example of how good/wrong some times the recommended schematics/ap-notes are. I think 5 dots are missing from the final schematic (Fig. 8). Can you guess which ones?

Greg
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Old 31st October 2003, 07:59 PM   #3
GregGC is offline GregGC  Canada
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Stand corrected. Only four dots.
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Old 31st October 2003, 08:15 PM   #4
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Default The ones on the 10k...

in parallel with the 12pF caps. I found an error in an IR app note for some HexFets and wrote them telling them about it and my local supplier gave me 10 of each n and p channels for free!!
Greg
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Old 4th November 2003, 01:16 AM   #5
vic2 is offline vic2  United States
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Aren't there dots missing between the 10k and the .25 resistors and immediately after the input?

Vic
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Old 4th November 2003, 01:39 AM   #6
GregGC is offline GregGC  Canada
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Quote:
Originally posted by vic
Aren't there dots missing between the 10k and the .25 resistors and immediately after the input?

Vic
Rigth.
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Old 4th November 2003, 02:12 PM   #7
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Of course, in spite of the title of this thread, this isn't a bridge circuit at all, even with the missing dots.

A cursory reading of the text or any thought about the circuit makes it clear that this is a parallel amp configuration.
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Old 5th November 2003, 11:15 PM   #8
Guss is offline Guss  Canada
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Is bridging different from an amp to another ? I have to bridge my marantz...
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