Technical Reference Note
Rev.10.13.14_#1.1
AVE240C-48S12
Page 21
Input Ripple & Output Ripple & Noise Test Configuration
Probe
Current Probe
L1
50mm
Vo+
Vo-
Vin+
DC/DC
C1 C2
C3 C4
Cin
Load
Vdc
Vin-
Figure 20 Input ripple & inrush current, output ripple & noise test configuration
Vdc: DC power supply
L1: 12μH
Cin: 220μF/100V typical
C1 ~ C4: See Figure 15
Note: It is recommended to use a coaxial cable with series 50Ω resistor and 0.68μF ceramic capacitor or a ground ring of
probe to test output ripple & noise.
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