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new products

with lowEMI levels.With their frequency synchronisation-

capability and very low coupling capacitance, typically

13 pF, EMC compliance is easier.

The converters’ compact design reduces board space

and development time, whilst their characterised dV/dt

immunity of 80 kV/microsecond gives users confidence

in a long service life, and similarly the use of planar

magnetics increases product reliability and repeatability

of performance. Typical applications include motor

drives/motion control, solar inverters, UPS, alternative

energy (wind-power generators), high-power AC-DC

conversion, traction, EV/HEV and welding.

The MGJ6 series converters offer an operating

temperature range of -40 to 105 °C, with derating

above 90 °C. Standard features of the patent protected

converters include enable pin, short-circuit and overload

protection, and a frequency synchronisation pin that

simplifies EMC filter design.

The series is pending IEC 61800-5-1 approval based on

a high working voltage of 690 Vrms maximum between

primary and secondary, and similarly is also pending

UL approval to UL 60950 for reinforced insulation to a

working voltage of 690 Vrms.

As a targeted application solution featuring high

isolation construction, high efficiency electronics and

planar magnetics, no other manufacturer offers this type

of product.

NI Announces Multiple Antenna UE

Support for Its MIMO Application Framework

to Further 5G Research

The provider of platform-based systems that enable

engineers and scientists to solve the world’s greatest

engineering challenges, today announced multiple

antenna User Equipment (UE) support for its LabVIEW

Communications MIMO Application Framework. This

makes the MIMO Application Framework the world’s

only commercially available physical layer reference

design that powers true Massive MIMO prototyping that

goes beyond just desktop simulations to fully functional

5G deployments.

Wireless researchers can pair the MIMO Application

Framework with NI software defined radio hardware to

conduct real-time, over-the-air experiments for a wide

range of MIMO research topics including multi-user

MIMO, single-user MIMO and Massive MIMO. This

multi-FPGA physical layer reference design ships with

well-documented LabVIEW Communications source

code that is fully reconfigurable and modifiable, making

it possible to create a complete network of multiple

antenna devices with minimal system integration or

design effort.

Researchers can now explore beamforming techniques

not just at the base station, but also at the UE to

further improve overall network throughput, extend

cell coverage, reduce interference and more. The

MIMO Application Framework supports a maximum

network throughput of more than 1.5 Gb/s, a flexible

and reconfigurable Time Division Duplex-based frame

structure and a fully bidirectional communications link

that can be used out of the box to conduct Massive

MIMO experiments and seamlessly integrate custom

signal processing algorithms in a fraction of the time

compared to other approaches.

As participants in NI’s RF/Communications Lead User

program, wireless researchers at Lund University in

Sweden have used NI’s flexible prototyping platform

for 5G research and have recently demonstrated the

feasibility of Massive MIMO under mobile conditions for

users moving at both pedestrian and vehicular speeds.

“Massive MIMO has emerged as one of the leading

5G technologies that has the potential to provide

unprecedented levels of spectral efficiency that will be

critical in supporting the vast number of wireless devices

expected to come online in the coming years,” said

Fredrik Tufvesson, IEEE fellow and professor of radio

systems at Lund University. “NI’s MIMO Application

Framework provides the hardware and software

80 l New-Tech Magazine Europe