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Designers Manual
Advanced Energy CoolX600 Series
24.2 kΩ
I
max
I
min
R
trim
(kΩ)
I
out
(A)
FFiigguurree 66‑‑2288..
R
trim
versus I
out
A single control voltage can be used to adjust the current limit of individual modules
or modules connected in parallel.
Foldback Current Limit Programming
Foldback current limit requires the common pin of the output connector to be tied to
the –V output connector of the module (the common pin is also −V
o
of the auxiliary
voltage). Foldback current limiting can then be implemented by placing a resistor, R
u
,
V
out
and I
trim
, and a resistor, R
l
, across I
trim
and −V
out
/common.
+V
out
R
u
R
l
-V
out
Common
I
trim
FFiigguurree 66‑‑2299..
Foldback current limit circuit
R
l
=
23500 × I
out
5K − I
out
R
u
=
47000 × R
l
× V
out
−
Iout
K
R
l
× I
trim
− 5R
l
+ 47000 ×
Iout
K
Advanced Energy
®
CoolX
®
600 Modular Power Supply
57010208-00B
Installation, Setup, and Operation
6‑22
