3900uF should be fine.
I'm fairly certain the value used here is to provide a nice soft slow start up of the output stage. Anything between 2000uF and 4000uF should be fine.
Thanks pD.
The reason I asked is that it seemed to me that the cap also provided some form of bypass filter for the feedback mechanism, unless I am off base with that assertion.
The reason I asked is that it seemed to me that the cap also provided some form of bypass filter for the feedback mechanism, unless I am off base with that assertion.
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Hallo JP,
I really like WIMA MKP10. Usually use them as signal path caps or bypass in signal path. When I can fit them, I put them in the PSU as well as bypass (often 2.2 µF - 4.7 µF). Otherwise, I try to use WIMA MKP4.
Both variants are large and need to be mounted directly on the PCB, though ...
Viele Grüße,
Claas
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Rectifier snubber is MKP2 PCM 5mm W < 4.5mm and 0207 resistor (22nF/400VDC + 4R7?).
Other ones, PCM 5, 7.5 or 10mm W < 6mm (MKP2).
Using MKP4 or MKP10 will need a 40mm longer board (up to 200mm).
Price differs marginaly,
Standby, waiting for decision.
JP
Other ones, PCM 5, 7.5 or 10mm W < 6mm (MKP2).
Using MKP4 or MKP10 will need a 40mm longer board (up to 200mm).
Price differs marginaly,
Standby, waiting for decision.
JP
Have you allowed space for these 3W bleed resistors?
https://www.digikey.com/product-det...nic-components/ERG-3SJ222/P2.2KW-3BK-ND/36811
https://www.digikey.com/product-det...nic-components/ERG-3SJ222/P2.2KW-3BK-ND/36811
Some amp chassis come with split heatsinks, so you might want to orientate the mosfets differently.
