GS65011-EVBEZ
EZDrive
TM
Open Loop Boost Evaluation Board
User’s Guide
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GSWPT-EVBEZ Rev190621
© 2019 GaN Systems Inc.
www.gansystems.com 12
Please refer to the Evaluation Board/Kit Important Notice on page 15
Note:
When measuring the high frequency content switch node, care must be taken to
avoid long ground leads. Measure the switch node by placing the oscilloscope probe tip
through the Drain via and Source via (designed for this purpose). See
for proper
probe technique and
Figure 5
for the location of V
GS
and V
DS
measure vias. Use a high
voltage passive/differential probe for the V
DS
measurement.
Figure 6 •
Proper Oscilloscope Probe Measurement Technique
Note:
A jumper is placed between the Vin+ signal and the inductor (beneath the input
capacitor C4) The jumper can be replaced by a loop of jumper wire to take the inductor
current measurement.
shows how to replace the jumper with a loop
of jumper wire to take the current measurement with a current probe. The jumper wire
loop and the current probe are not included in the Evaluation Kit.
