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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+DC\s+restoration\s*$/: 4 ]

Total 4 documents matching your query.

1. LF: DC restoration (score: 1)
Author: Chris Wilson <[email protected]>
Date: Wed, 17 Jul 2019 14:38:05 +0100
Hello rsgb, Some Class D LF / MF amps use a diode to DC restore the waveform after the FET driver chip to the gates. Why do they do this, I am thinking the negative part of the waveform would turn OF
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-07/msg00017.html (8,471 bytes)

2. Re: LF: DC restoration (score: 1)
Author: DK7FC <[email protected]>
Date: Wed, 17 Jul 2019 20:22:55 +0200
Hi Chris, Maybe it helps to show a concrete schematic together with your question. I find reverse diodes quite useless, at least when MOSFETs are used. It may be a different thing with bipolar transi
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-07/msg00019.html (9,952 bytes)

3. Re: LF: DC restoration (score: 1)
Author: Andy Talbot <[email protected]>
Date: Wed, 17 Jul 2019 19:50:39 +0100
I assume we're talking about the series C from driver to gate, then a high value leakage R from gate to ground, and a reverse biassed diode in parallel with this. AC coupling without any DC restorati
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-07/msg00020.html (14,196 bytes)

4. Re: LF: DC restoration (score: 1)
Author: Chris Wilson <[email protected]>
Date: Thu, 25 Jul 2019 12:42:53 +0100
Hello Andy and Stefan, Thanks for the replies, it's a lot clearer now, I appreciate your time! -- Best regards, Chris mailto:[email protected]
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-07/msg00040.html (13,315 bytes)


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