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Introduction to your PPS 2 - 13
2.3.2 Multiple loads
If more than one load is connected to an output channel, use separate wires to
connect each load. This minimizes mutual couplin
g
effects and takes full
advanta
g
e of the power supply’s low output impedance. Each pair of wires should
be as short as possible to reduce wire inductance and noise pickup to prevent the
loads from mutually influencin
g
each other, due to load fluctuations. The loads
must be connected in parallel, not in series.
Note: To prevent noise pickup, you are advised to twist the sense wires and
shield them from each other.
In principle there is no restriction about the number of loads that can be
connected. Remote volta
g
e sensin
g
is recommended if one load is more sensitive
than the other(s); therefore, sense directly at the most sensitive load.
- S - V + V + S
load 1 load 2
–+ –+
- S - V + V + S
load 1 load 2
–+
–+
CORRECT: Parallel connection of loads
–+
WRONG: Series connection of loads