STWBC86 stops working after a few days
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‎2024-04-08 6:52 AM
Hi,
I have a array of 2x5 STWBC86 on a aluminium plate to make a charging station for multiple devices. They are all connected to a common 5V source and decoupled by a small filter of Ferrite bead and MLCC.
After testing them for a while i let them rest over the weekend with no devices sitting on the chargers.
After that only a few of the STWBC86 work correctly, the rest doesn't respond to devices. I connected WPStudio and found no errors to be shown but what i found is that the device has its power stage active all the time at its ping frequency.
Best regards
Stefan
- Labels:
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STWBC86
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Wireless charging
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‎2024-04-15 7:19 PM
Hi
I have check default cfg,
when TX detect three occasions.
- FOD
- OVP
- SYS ERR
It will disable re-ping, so TX will not ping. It need MCU/AP to clear this state and set command to "TX Start".
I have update new cfg and disable ept reason, please use this link cfg file
After update this cfg file, GUI show all TX EPT Reping is disable.
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‎2024-04-23 1:25 AM
Based on manual
It maybe tx stuck in fhop feature, change frequency and stay in power-stage mode.
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‎2024-04-23 1:35 AM
Hi,
if i understand correctly Fhop is enabled by default.
so you reccomend to disable Fhop feature?
Best regards
Stefan
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‎2024-04-23 1:44 AM
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