of
a single unit are available.
When
two
units are used,
the
maximum voltage available
is
+64V
or-64
V.
The current available
is
0.5A for LPS-160A, 1.2A for
LPS-161A, 2A for LPS-162A,
3A
for LPS-163A and
5A
for
LPS-
164A.
Note: The overcurrent protection
is
effective
at
the smaller value
set
of
the two.
(2)
Notes on series operation:
When the series-connected two units
of
regulated
DC
power
supplies are overloaded, the unit
in
which the overcurrent protec-
tion circuit activated first
is
applied with
the
reverse voltage
of
the
output
of
the
other
unit, and so
the
series control element
of
the
former
will
be
damaged.
To
protect this problem, connect two
diodes between the
output
terminals
of
the units
as
shown
in
Fig. 6-2.
,L~--fi\)il--
l......,-..J~
I I
&....-----------
Fig. 6-2
Diodes
to
be used should
be
with a higher voltage than the
maximum rating
voltage
of
a single unit, and
the
voltage rating
of
diodes should be 2
to
3 times
of
the
maximum voltage
of
the
·
-13-
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