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WLC1150 MP-A2 50-W wireless power transmitter
(REF_WLC_TX50W_N1) user guide
WLC1150 wireless power transmitter system design
Figure 6
REF_WLC_TX50W_N1
3.1.2
Test points
The test points in the
REF_WLC_TX50W_N1
the wireless power transfer system. The list of test points and their functionality is covered in
Table 3
List of test points on
Test point name
Section
USB-IN
Power
USB-GND
Power
PVIN_0
Power – Buck/Inverter
FAN_VDDD
Power – Buck
SW1_0
Power – Buck
HG1_0
Signal – Buck
LG1_0
Signal – Buck
VBB_1
Power – Inverter
COIL_SNS
Power – Inverter
PWM_OUT
Signal – Inverter
PWM_IN1
Signal – Inverter
User guide
power transmitter board power and signal connections
MP-A2 power transmitter board assist in monitoring and debugging
REF_WLC_TX50W_N1
Description
Input power positive rail
Input power ground rail
Input positive rail to buck converter and inverter
Buck stage output for Fan power supply
Buck stage switching node
Buck stage high side MOSFET (Q3) gate signal
Buck stage low side MOSFET (Q3) gate signal
Input inverter power after the current sense resistor
Coil voltage; transmitter coil, and resonant capacitor
junction point
Inverter stage PWM signal
PWM logic circuit O/P for inverter MOSFET Leg (Q4, Q5)
13
Table
3.
002-36393 Rev. *B
2023-02-06
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