Texas Instruments bqTESLA bq500414Q, Руководство пользователя, Страница: 13 / 29

V A Voltmeter Ammeter
Power Supply Oscilloscope
+
V
V
A
A
R L
AC1
OUT-J2
VRECT-TP12
AC2
GND-J4
OUT-TP7
J1
POS
J2
RTN
AC1
AC2
AC1
AC2
AC1
AC2
Coil L1
Coil L2
Coil L3
+
–
–
L
P
L
P
L
P
L
S
Wireless Transmitter
Bq500414EVM-629
Wireless Receiver
Bq51013EVM-764
V
IN
Pin 2
Pin 1
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Test Setup
6.2 Equipment Setup
• With the power supply OFF, connect the supply to the bqTESLA™ transmitter.
• Connect the V
IN
positive power source to J1 Pin 2, and connect the negative terminal of the V
IN
source
to J1 Pin 1.
• Do not place the bqTESLA™ receiver on the transmitter. Connect a load to the receiver J3 with a
return to J4, monitor current through the load with the ammeter, and monitor the current to the load at
TP7. All voltmeters must be Kelvin connected (at the pin) to the point of interest.
6.2.1 Equipment Setup Diagram
The diagram in Figure 4 shows the test setup.
Figure 4. Equipment Setup
6.2.2 EVM Procedures
This section is provided as a guide through a few general test procedures to exercise the functionality of
the presented hardware. Some key notes follow:
6.2.2.1 Start-Up No Receiver
Turn on V
IN
, and observe that the green power LED, D1, illuminates. Status LEDs D2, D8 and D9 are OFF
until the power transfer starts.
Apply the scope probe to test point, TP18, and observe single-pulse bursts approximately every 500 ms.
This is a digital ping to begin communications with a receiver placed on the TX coil.
13 SLVUA40A – March 2014 – Revised January 2015 bq500414Q bqTESLA Wireless Power TX EVM
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