Jupiter
EVM
Getting
Started
Rev
C01
:
05/17/2007
Copyright
Elevate Semiconductor 2012
Page 10 of 22
2.4.1 Remote Sense Option
Extreme caution should be used when configuring the feedback (SENSE) path to ensure the DPS does
not become open loop. The Jupiter device has 2 output pin options (FORCE-A or FORCE-B) and internal
mux options. The Loadboard has several jumper and switch options to directly connect to the
FORCE-A/B pin or to connect to the TEST_NODE.
Note: To put the Jupiter device in remote sense, after selecting the FORCE-A or FORCE-B configuration
option then change the ‘CPU-Sel-FB’ option to SENSE
2.4.2 General DPS Configurations
Figure 3 illustrates the recommended configuration for Jupiter EVM evaluation. After the configuration is
completed, use the
Jupiter->DPS Levels
dialog box the change the Jupiter output levels. Use the
Jupiter Loadboard
dialog box to connect to the on-board resistor network and/or capacitive load.
For the External DAC mode, jumper E1 must be installed. The VFORCE2 voltage is connected to the
Gang2 (V+) input and the VFORCE voltage is connected to the Gang3 (V-) input. Use the
EVM->FVMI (DPS) Config
dialog box to change the VFORCE and VFORCE2 voltage values.
If using an external measurement unit (MU), the MU should be configured in the opposite mode as
Jupiter.
Jupiter
MU
FVMI FIMV
FIMV FVMI
Important note
: the FORCE_A is always connected to the high power op-amp stage and can not be put
into HiZ (disabled). Therefore when using the FORCE_A option, it is recommended to connect any load
to the TEST_NODE SMA so the Con-FA-TN relay can be opened in the event of an alarm condition.
Figure 3: Jupiter EVM Simplified Block Diagram
Motherboard
Jupiter Load Board
PC
J2 (FVMI
)
Parallel
Cable
EVM
Power
Supply
Jupiter
DMM
or
Measurement
Unit
MONITOR
MONITOR
FORCE_A
SENSE
FORCE_A
VCC
VCCOUT
VEE
+20V (BN1)
-15V (BN2)
+5V (BN3)
GND (BN4)
LEDs
FORCE_B
SENSE
FORCE_B
TEST_NODE
Rnet
Cloads
DPS_EN
Jupiter
Power
Supply
E1 (VFORCE)