Infineon WLC1150 User Manual page 14

WLC1150 MP-A2 50-W wireless power transmitter
(REF_WLC_TX50W_N1) user guide
WLC1150 wireless power transmitter system design
Test point name Section
PWM_IN2 Signal – Inverter
HG1_1 Signal – Inverter
LG1_1 Signal – Inverter
HG2_1 Signal – Inverter
LG2_1 Signal – Inverter
Q_COMP Signal – Q-factor
ASK_OUT Signal – ASK demodulator
OPAMP_GAIN Signal – ASK demodulator
CMP_REF Signal – ASK demodulator
OPAMP_CMP Signal – ASK demodulator
VIN Power – WLC1150
VDDD Power – WLC1150
VCCD Power – WLC1150
Q_COMP Signal – WLC1150
GND1, GND2 Power
GND Signal
Note: For more information, see the reference board's schematic in the REF_WLC_TX50W_N1 release
package.
User guide
Description
PWM logic circuit O/P for inverter MOSFET Leg (Q6, Q7)
Inverter bank 1 high side MOSFET (Q4) gate signal
Inverter bank 1 low side MOSFET (Q5) gate signal
Inverter bank 2 high side MOSFET (Q6) gate signal
Inverter bank 2 high side MOSFET (Q7) gate signal
Scaled coil voltage (for Q-factor measurement)
ASK demodulator output from WLC1150 to amplification
stage
ASK demodulator gain stage amplifier output
ASK demodulator comparator reference signal
ASK demodulator comparator output; digital signal to
WLC1150
Power input to WLC1150
WLC1150 internal 5-V LDO output
WLC1150 internal 1.8 V core LDO output
Signal used by WLC1150 for Q-factor estimation
Power side ground points
Control side ground point
14 002-36393 Rev. *B
2023-02-06