Texas Instruments bq501210, User Manual, Page: 15 / 29

+
±
Voltmeter
A
V V
IN
J1 POS
J2 RTN
TP3 AC1
TP2 AC2
Wireless Transmitter
AC1
AC2
Output
Ground
Wireless Receiver
Rectifier
TX
Coil
RX
Coil
A
V
R
L
V A
+
±
Ammeter Power Supply Oscilloscope
TP15 Drive B
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Test Setup
15 SLVUAO6 – June 2016
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Copyright © 2016, Texas Instruments Incorporated
bq501210 bqTESLA™ Wireless Power TX EVM
6.1.5 Oscilloscope
Use a dual-channel oscilloscope with appropriate probes to observe the VOUT of the 15-W RX and other
signals.
6.1.6 Recommended Wire Gauge
For proper operation, use 22-AWG wire when connecting the EVM to the input supply and the 15-W RX to
the load.
6.2 Equipment Setup
• Verify jumper positions
– JP1 - Shorted
– JP2 - Open
– JP3 - Open
– JP4 - 19-V input selected
• With the power supply OFF, connect the supply to the bq501210EVM-756 transmitter.
• Connect the V
IN
positive power source to J1, and connect the negative terminal of the V
IN
source to J2.
• Do not place the 15-W RX on the transmitter. Connect a load to OUT with a return to GND, monitor
current through the load with the ammeter, and monitor the voltage to the load at OUT. All voltmeters
must be Kelvin connected (at the pin) to the point of interest.
6.2.1 Equipment Setup Diagram
The diagram in Figure 7 shows the test setup.
Figure 7. Equipment Setup
6.2.2 EVM Procedures
This section provides guidance for a few general test procedures to exercise the functionality of the
presented hardware.
Figure 8 shows the TX and RX test points.