Gan Systems GS65011-EVBEZ Manuel de l'utilisateur - Page 11
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Hardware Operation
The general guidelines for operating the evaluation board are listed in this section. Follow
the steps to configure the hardware properly.
1) Pre-set the PWM frequency and the duty cycle (by tuning R3 and R11), according to
the PWM signal look-up tables. Start with 10% duty cycle and frequency 250kHz.
2) Apply V
(5V
CC
DC
(VIAS) for V
monitoring
GS
3) Check the V
waveform and fine-tune the PWM frequency (by tuning R3) and duty
GS
cycle (by tuning R11)
4) For taking an efficiency measurement, add a current meter and use Vin+ and Vin- for
V
and use Vout+ and Vout- for V
IN
5) Always connect a load (E-load) to Vout+ and Vout-
6) Apply V
to Vin+ and Vin- and sweep the voltage from low (0V) to max. Monitor
DC
the output voltage and device temperature. Make sure V
the GaN device temperature is lower than 150°C. Note: the maximum input voltage
is limited by the output voltage of the Boost converter, which is dependent on the
operating mode, the duty cycle and the load value.
7) After testing, turn off V
GSWPT-EVBEZ Rev190621
EZDrive
< V
< 12V
) to Vcc+ and Vcc-, use T_GS (MMCX JACK) or G/SS
CC
DC
measurement.
OUT
first, then V
across Vcc+ and Vcc- last.
IN
CC
© 2019 GaN Systems Inc.
Please refer to the Evaluation Board/Kit Important Notice on page 15
Open Loop Boost Evaluation Board
TM
is lower than 400V, and
OUT
www.gansystems.com
GS65011-EVBEZ
User's Guide
11