9
DEMO MANUAL
Rev. 0
POWER CONNECTIONS BETWEEN ASSEMBLIES
AND OPTIONAL HEATSINKS
The power connections between master and slave
DC2331A assemblies are important since unequal I*R
voltage drops in the power ground connections (VIN
ground in parallel with VOUT ground) between the assem-
blies can cause an offset voltage between the master and
slave assembly grounds. Consequently, the offset voltage
between master and slave grounds will cause undesired
current in the signal grounds of the control interface rib-
bon cable. The potential sources of the offset voltages
between DC2331A master and slave grounds, VDROP1
and VDROP2, are labeled in Figure 10.
Figure 10. Offset Voltages V
DROP1
and V
DROP2
Between DC2331A Master and Slave Grounds.
Make V
DROP1
= V
DROP2
to Prevent Undesired Current In the Signal Grounds of the Control Interface Ribbon Cable
