Infineon WLC1115, Руководство пользователя

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User Guide 13 of 25 002-35126 Rev. **
2022-05-10
WLC1115 MP-A11 15-W wireless power transmitter
(REF_WLC_TX15W_C1) user guide
Reference board operation
Note: The status LED will continue to glow blue if the phone remains in trickle charging mode after the
battery is fully charged.
Table 4 describes the status LED indications for various system states.
Table 4 System states and status LED indications
Note: The
REF_WLC_TX15W_C1
reference board with factory default firmware may exhibit timeout
bound retry of Qi power contract under extremely noisy ASK modulated signal conditions with
some phones/receivers. Such behavior does not affect wireless charging performance. See the
REF_WLC_TX15W_C1 reference board
’s test report to get more details about the phone charging
cycle, ASK demodulation, and Qi 1.3.2 compliance test results. This report can be downloaded
from the
REF_WLC_TX15W_C1
reference board webpage [2] .
See Table 5 for troubleshooting the potential issues faced while operating the WLC 15W Tx reference board.
Table 5 Troubleshooting of the WLC 15W Tx reference board operation
# Issue Possible cause Fix
1 The phone is not charging
when placed on the interface
surface of the WLC reference
board. The phone may not be a
Qi-certified phone. Check with the phone manufacturer on
the Qi certification. Get a Qi-certified
phone.
2 The phone is charging at slow
rate. The phone may not
support Qi’s EPP
capability
Check with the phone manufacturer on
support for EPP capability. Get a phone
which can support EPP to charge at 15
W.
Note: The
REF_WLC_TX15W_C1
reference board is by default loaded with a firmware that supports USB
PD based power input. However, the reference board can be powered using a DC supply, requiring
a different firmware. See Appendix A to understand the procedure for powering the WLC1115
referecne board using DC input.
System state Status LED indication
Idle state No LED indication
Qi digital ping phase Blinks blue
Power delivery in progress Glows blue
Power delivery/charge complete No LED indication
Foreign object (FO) detected Glows red until FO is removed
Fault during power transfer Glows red until the fault is cleared
Aburpt end of power transfer (EPT) initiated by the
receiver
Blinks red