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EPC9079
EPC – EFFICIENT POWER CONVERSION CORPORATION |
WWW.EPC-CO.COM
| COPYRIGHT 2017 | | 3
Figure 3: Proper connection and measurement setup.
Figure 4: Typical Waveform for V
IN
= 150 V to 15 V
OUT
, 5 A, (100 kHz) buck converter.
Figure 2: Block diagram of EPC9079 development board.
V
IN
V
OUT
Gate drive
regulator
Logic and
dead-time
adjust
V
DD
PWM input
Gate drive supply
Gate
driver
Gate
driver
Half-bridge with
bypass capacitors
Highside
isolator
Gate drive supply
(note polarity)
7.5 – 12 V
Half bridge configuration
Switch node
+
–
(For efficiency
measurement)
V
DD
supply
+
–
V
V
A
IN
+
–
V
IN
supply
I
IN
+
+
–
–
PWM input
Optional MMCX
jacks for gate drive
measurement
External circuit
Optional 2-pin header for switch node measurement
200 ns/ div