Datasheet

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SLUS495H − SEPTEMBER 2001 − REVISED AUGUST 2007
13
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DESIGN PROCEDURE
measuring the modules’ loop
Using the configuration in Figure 6, measure the unity gain crossover frequency of the power modules to be
paralleled. A typical resultant bode plot is shown in Figure 7.
UDG−02079
50 Ω
Load
DC−DC Module
Network Analyzer
Source
Out
XFRMR
+
+
VOUT
SENSE
+
V
IN
Channel
A
Channel
B
+
Figure 6. Unity Gain Crossover Frequency Measurement Connection Diagram
1 10 100 1000
−40
−30
−20
−10
0
10
20
30
40
f − Frequency − Hz
Gain − dB
UNITY GAIN
CROSSOVER
FREQUENCY
f
CO
= 40 Hz
Figure 7. Power Module Bode Plot