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36
Section 4. Operation
Using Multiple Supplies
Using Multiple Supplies
Connecting
Multiple
Supplies in
You can operate two or more power supplies with outputs connected in series or in
parallel to obtain increased load voltage or current. A split supply configuration
allows you to obtain two positive outputs or a positive and a negative output.
Series
(Voltage
Mode Only)
CAUTION
The maximum allowable voltage in series operation is 400 Vdc.
As described below, you can connect power supplies in series to obtain a single
output supply with higher output voltage. Connect the negative (–) terminal of one
supply to the positive (+) terminal of the next supply.
The total voltage available is the sum of the maximum voltages of each supply (add
voltmeter readings). The maximum current available to the load is equal to the
current of the lowest rated supply in the series. See
Figure 4.2
for a representation of
series operation.
Figure 4.2
Series Operation With and Without OVP
Note
You do not need to use remote sensing for series operation. If you choose to use it,
refer to
“Remote Sensing” on page 19
and connect as shown in
Figure 4.2
.
Diodes CR1 and CR2 protect sense circuits during transient events such as
momentary current limit events which may cause supply outputs to collapse. Use
general purpose 1A rectifiers, such as IN1004 or equivalent.
Operating Manual for HPD Series Power Supply
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