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oryp11,serw13,bonw15: Fix Rsense values #371

Merged
merged 2 commits into from
Jul 6, 2023
Merged

oryp11,serw13,bonw15: Fix Rsense values #371

merged 2 commits into from
Jul 6, 2023

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crawfxrd
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@crawfxrd crawfxrd commented Jun 30, 2023

On oryp11 and serw13: PRS1 is 5, but it is in series with PRS3, which is also 5. PRS1 by itself is only connected to ACP/ACN.

On bonw15: Battery Rsense is 0.005 Ohms. However, PRS1 and PRS2 are also both 0.005 Ohms, but are in parallel.

Ref: oryp11 schematics, AC In Charger (Sheet 59)
Ref: serw13 schematics, AC_In, Charger (Sheet 70)
Ref: bonw15 schematics, Charger (Sheet 70)

@crawfxrd crawfxrd requested review from jackpot51 and a team June 30, 2023 21:07
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Other RPL boards need to be updated as well.

@crawfxrd crawfxrd changed the title oryp11: Set adapter Rsense to 10 milliohms oryp11,serw13: Set adapter Rsense to 10 milliohms Jun 30, 2023
PRS1 is 5, but it is in series with PRS3, which is also 5. PRS1 by
itself is only connected to ACP/ACN.

Ref: oryp11 schematics, AC In Charger (Sheet 59)
Ref: serw13 schematics, AC_In, Charger (Sheet 70)
Signed-off-by: Tim Crawford <tcrawford@system76.com>
@crawfxrd crawfxrd marked this pull request as ready for review June 30, 2023 21:25
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Also need to figure out wtf is going on with bonw15. PRS1 and PRS2 are 0.005 Ohms, but are in parallel.

@crawfxrd crawfxrd changed the title oryp11,serw13: Set adapter Rsense to 10 milliohms oryp11,serw13,bonw15: Fix Rsense values Jun 30, 2023
PRS3 is 0.005 Ohms.

However, I am unsure about this change because PRS1 and PRS2 are also
both 0.005 Ohms, but are in *parallel*.

Ref: bonw15 schematics, Charger (Sheet 70)
Signed-off-by: Tim Crawford <tcrawford@system76.com>
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@leviport leviport left a comment

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This does appear to fix bonw15's non-charging bug, so I'm approving. Oryp11 and serw13 mostly seem fine, but we should detect any potential issues when we do an update release.

@jackpot51 jackpot51 merged commit 4458d5d into master Jul 6, 2023
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@jackpot51 jackpot51 deleted the oryp11-charger branch July 6, 2023 18:31
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3 participants