Usin
your Pro
rammable Power Supply 5 - 29
5.6.1 Parallel connection of output channels
Note: For the PM2812 and PM2813 you can face a number of restrictions
when connectin
output channels in parallel to a load. Please read
Appendix D to
et more information of parallel connection of output
channels fore these instruments.
For the PM2831 and PM2832, parallel connection of output channels is
only possible in the source (non-sink) mode
Connectin
output channels in parallel provides a
reater current capability than
can be obtained from a sin
le output channel. In principle, you can put more than
two output channels in parallel.
Output channels in parallel confi
urations can operate in either Constant Volta
e
(CV) or in Constant Current (CC).
When channels are connected in parallel with the intention of increasin
the
current capability, it is advised that you set all channels to the same volta
e. When
the channels have the same power characteristics, set them to the same current
value.
In
eneral, you can handle the followin
procedure.
• Set the power supply to STANDBY before makin
any connections.
• Connect the channels in parallel.
If a constant volta
e is required accross the load, proceed as follows.
•Pro
ram the volta
e settin
of all channels equal to the constant volta
e
required.
• Calculate the maximum current needed for the load (I
max
). Count with the
minimum value of R
load
.
•Pro
ram the current settin
of the individual channels so that the sum of the
values is equal to I
max
.
• Now you may set the power supply to the operate mode.
If a constant current is required throu
h the load, proceed as follows.
•Pro
ram the current settin
of the individual channels so that the sum of the
values is equal to the value of the constant current required.
• Calculate the maximum volta
e needed to supply the constant current. Count
with the maximum value of R
load
.
•Pro
ram the volta
e settin
of all channels equal to the maximum volta
e
needed.
• Now you may set the power supply to the operate mode.
