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WLC1150 MP-A2 50-W wireless power transmitter
(REF_WLC_TX50W_N1) user guide
Reference board operation
4.1.4
Troubleshooting
See
Table 5
for troubleshooting the potential issues faced while operating the WLC 50 W Tx reference board.
Table 5
Troubleshooting of the WLC 50W Tx reference board operation
#
Issue
1
The power transfer between
the transmitter and receiver
stops soon after it begins and
the status LED (LED1) glows
red.
2
The receiver reference board
REF_WLC_RX50W_N1 does
not provide output power
and debug logs show EPT121.
3
The phone is not charging
when placed on the interface
surface of the WLC reference
board.
4
The phone is charging at a
slow rate.
Note:
By default, the
USB PD-based power input. However, the reference board can be used for wireless power transfer
with high power protocol (50 W) using a DC supply, requiring a different firmware. See Appendix A
to understand the procedure for Wireless power transfer by using High power protocol (50 W)
mode with a DC input power supply.
User guide
Possible cause
There might be a foreign
object (FO) present on the
interface surface
The receiver has
terminated the power
transfer because of a
potential fault in the
receiver
The phone may not be a
Qi-compliant phone.
The phone may not
support Qi EPP capability.
reference board is loaded with firmware that supports
REF_WLC_TX50W_N1
18
Fix
Remove the receiver from the interface
surface and verify for any FO presence
and retry placing the receiver on the
interface surface.
Power recycle the transmitter and retry.
In case the issue persists, contact
Infineon technical
support.
Check with the phone manufacturer on
Qi compatibility. Get a Qi-compliant
phone.
Check with the phone manufacturer on
support for EPP capability. Get a phone
which can support EPP to charge at
15 W.
002-36393 Rev. *B
2023-02-06
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