16 SEPTEMBER 2016
Diversified Technologies (Bedford, MA) has announced
a series of AN-TPS-70 family transportable radar transmitter
upgrade kits that replace all outdated components with
solid-state components. DTI PowerMod AN-TPS-70 Family
Radar Transmitter Upgrade Kits deliver a complete solid-
state modulator to replace the thyratron, trigger amplifier,
regulator, pulse forming networks (PFN), pulse transformer,
SF6 tank, and oil tank used in the AN-TPS-43, 70, and 75
family of air surveillance radar. Features include:
n Enhanced pulse agility from 0 to 8 µs.
n > 50,000 hours of life expectancy.
n PLC control with circuit board high-speed fault detection.
n Built- in self-diagnostics and a touch-screen interface.
n Control board access from outside of the transmitter
1,000 W DC-DC Bus Converter
GE’s Critical Power business (Plano, TX) has launched its
Barracuda-series QBVE094A0S10R7 1,000 W DC-DC bus
converters, providing the highest power density and lowest
cost-per-rated-watt in a quarter-brick solution available on
the market today. The modules offer 20 percent more power
than standard 800 W solutions. Features include:
n An operating input voltage range of 45 to 56 V DC.
The ability to provide up to 1,000 W output power at output
voltages of 10. 7 V.
n The ability to deliver 1,800 W output power with two
modules or 2,700 W power with three units when used in
n The ability to support 10. 7 V intermediate bus applications
where multiple low voltages are subsequently generated
using point-of-load modules.
n Over-current, -voltage, and –temperature protection.
n An operating temperature range
from - 20° to 85°C.
during charge and discharge cycles. Frames must satisfy
the need for precision molding with permanent water-glycol
resistance. A flame-retardant polycarbonate with excellent
adhesion to self-adhesive silicone and good chemical and
impact resistance is typically specified for this type of design.
Figure 5 shows a concept for an air-cooled prismatic
cell package for use in heavy-duty EVs requiring long-
term vibration tests, such as e-buses and trucks. For such
designs, a flame-retardant polycarbonate + acrylonitrile
butadiene styrene (PC+ABS) blend is an ideal solution.
For lithium-ion cell packaging, the use of flame-retardant
polycarbonates has shown to provide an additional level of
safety against fire spread initiated by a short-circuit or an
external ignition source.
Figure 4. Design
pouch cell ESS.
Figure 5. Design
prismatic cell ESS.