Power Supply Series And Parallel Connections; Power Supply Series Connection - Rigol DP800A Series User Manual

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Power Supply Series and Parallel Connections

Higer voltages can be provided when two or more insulated channels (the channels
can be from a single power supply or multiple power supplies) are connected in
series. Higher currents can be provided when two or more insulated channels (the
channels can be from a single power supply or multiple power supplies) are
connected in parallel.
Note:
1. Only insulated channels can be connected in series or in parallel.
For a single power supply:

Any two channels of DP831A can be connected in series; CH1 and CH2/CH3
can be connected in parallel, but CH2 and CH3 cannot be connected parallel.
CH1 and CH2/CH3 of DP832A can be connected in series or in parallel, but
CH2 and CH3 cannot be connected in series or parallel. The two channels of
DP821A can be connected in series or in parallel.
Channels (insulated channels) of different power supplies can be connected

in series or in parallel.
2. In power series and parallel connections, the settings of the corresponding
parameters must comply with the sfaty requirements.

Power Supply Series Connection

Higher voltages can be provided by connecting power supplies in series. In this case,
the output voltage is the sum of the output voltages of all the channels. In power
supply series connection, you need to set the same current setting value and
overcurrent protection value for all the channels. Take the series connection of two
channels as an example; the connection method is as shown in the figure below.
Operation Procedures:
1. Connect the power supply and load as shown in the figure above. Pay attention
to the polarity when making connections.
2-8
+
Power Supply
V
Channel #1 1
-
+
Power Supply
V
Channel #2 2
-
Chapter 2 Front Panel Operations
+
V
R
L
Load
-
V =V +V
L 1 2
DP800A User's Guide