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Single Cabinet Solution for Power Cell;
Thermal Aging, Precision Load Testing and Charging
Multi-function, high
capacity at 90% less cost
xii “per channel”
than stand-alone fixtures.
Independent, programmable control
of current,
xiivoltage, load and
power for each channel.
Handle multiple
battery profiles in a single
xiirun with mixed lots.
Scalable from 50 to 2000 channels
xiiby making simple
configuration changes.
High accuracy - 0.02% FSR control
of
xiicurrent or voltage.
Configurable pulsing with synchronized
DAQ.
Measures both internal battery and
system level
xiiresistive, inductive
and capacitive resistances.
Multiple current ranges on every
channel for
xiihigh accuracy over
a wide, dynamic range.
Over current discharge protection.
Designed for
upgradeability, easy maintenance
xiiand dependable performance.
V I Engineering has combined the
three most important power cell conditioning functions
into a single cabinet system that provides fully
automated, thermal aging (forming), precision load
testing and “constant current, constant voltage”
recharging. This flexible and highly accurate product
simultaneously conditions up to 450 individual power
cells in 15 varying lots while monitoring the voltage,
current, resistance and impedance of each unit under
test.
Configurable for All Battery
and Capacitor Types
The first installation of this product
was built to the exacting specifications for Lithium-Ion
batteries, but advanced hardware and software design
allow easy configuration for most stored power devices
including Ni-CAD, Ni-MH, and Lead Acid batteries,
plus capacitors, super capacitors, fuel cells and
more.
Fully
Validated
The software application was developed, verified,
and validated using strict regulatory agency guidelines.
System validation included unit testing to assure
accuracy and consistent quality, followed by extensive
“black box” testing to confirm correct
and reproducible results
.
Integrated Components
The system includes
all necessary, custom designed load boards, fixtures,
and trays to suit each customer's specific battery,
electrical, size, and quantity requirements. A wide
range of alternate instruments may be specified
based on specific accuracy requirements. This unique
device utilizes the most advanced and highly accurate
COTS (commercial off the shelf) technology available
including:
Durable and robust PXI chassis and controller.
Precision “laboratory grade” ovens.
An LCR meter measures in-process impedance.
A PXI module acquires in process voltage and current.
A DMM provides high resolution measurements for
calculating in-process voltage & current.
CAN communication with the custom PCBs.
Reliable and Scalable
Software
Software functionality is based
on a highly scalable and reliable application developed
with National Instruments’ (NI) LabVIEW™.
The system architecture was developed with advanced
programming techniques that allow the application
to scale from 50 to 2000 channels by making simple
configuration changes. Programming logic also includes
a built in system self check and calibration routine
for each individual channel.
COTS Software and
Instrumentation
VIE Battery Burn-in software application (LabVIEW
source code available)
VIE Battery LLM2005-01-030 (Load Multiplexing Card)
VIE Battery BP2005-02-001 (Card rack and backplane)
VIE Battery TF2005-03-015 (Fixturing trays)
VIE SMIB (custom multiplexing board)
NI PXI 1042Q chassis
NI PXI 8196 controller with GPIB, plus controller
memory and hard drive upgrades
NI PXI-6528, Industrial DIO Module
NI PXI-6031E, Multi-function MIO Module
NI PXI 8464 CAN Card
NI PXI 4072 LCR Meter
NI PXI 4071 DMM
NI PXI 8423 RS485 Serial
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