Radar power supply technology
November 2003
Electrical Power & Protection
TMD's power supply design team is offering its PTM 7599 switched-mode power supply. This high performance, flexible unit has been designed to meet the stringent requirements of modern radars, including low, medium and high PRF, pulse compressed SAR and ISAR systems.
Designed to operate at 15 kV, 2 kW from a 400 Hz three-phase AC supply, the new power supply can be adjusted to drive a variety of tubes from different manufacturers. Its innovative design employs a high bandwidth post regulator to achieve a close-to-carrier phase noise performance of -120 dBc/Hz random; -90 dBc/Hz spurious, when driving a typical 8 kW, 5% duty cycle, X band TWT.
The modular system provides a very high PRF up to 200 kHz, and a wide range of pulse widths is also available from 200 ns up to 100 µs, and duty cycles up to 10%. The efficiency of the unit is better than 80% with a power factor greater than 0,92.
The unit is lightweight and compact with good thermal management employing conduction cooling via the base plate. Rugged in design the switched mode power supply is suitable for demanding air, sea or ground-based military environments. The picture shows a production automobile in an RF anechoic chamber, undergoing electromagnetic vulnerability testing of its electrical system. The radar transmitting equipment is in the foreground.
For more information contact Paddy Hanson, OEN Enterprises, 011 675 4447, [email protected], www.oenenterprises.co.za
Further reading:
Unpacking the technoeconomic case for cleaner power in wastewater plants
Schneider Electric South Africa
Electrical Power & Protection
Behind every reliable wastewater plant is an electrical system exposed to the effects of harmonics, voltage distortion and overloaded networks caused by fleets of variable speed drives on pumps and aerators.Together, they steadily drive up maintenance demands and elevate the risk of failure.
Read more...
Energy strategy as a competitive advantage for African businesses
Electrical Power & Protection
Energy is no longer simply something that businesses consume. When managed effectively, it becomes a controllable asset that supports resilience and efficiency and sets the foundation for long-term competitiveness.
Read more...
World’s fastest 14 bit arbitrary waveform generator
Vepac Electronics
Electrical Power & Protection
The ARB Rider AWG-700 from Vepac is the world’s fastest 14 bit arbitrary waveform generator, with a 20 GS/s real-time update rate and 14 bit vertical resolution.
Read more...
Transformers for mining house in Botswana
ACTOM Electrical Machines
Electrical Power & Protection
LH Marthinusen is completing the manufacture of two 30 MVA transformers for a mining house in Botswana.
Read more...
DIN-rail power supplies for reliable and efficient AC/DC conversion
Conical Technologies
Electrical Power & Protection
The Claf Power AD75-2BxxS series DIN-rail power supplies are designed for industrial automation, control systems and process environments.
Read more...
Rethinking power for Africa’s data centres
Schneider Electric South Africa
Electrical Power & Protection
Africa’s digital economy is scaling faster than its power systems. If it wants resilient, competitive and sustainable data centres, the starting point must be a grid-to-chip architecture rather than a genset-first mentality.
Read more...
The growing decentralisation of power grids
Electrical Power & Protection
The decentralisation of power generation is changing how national grids function. For electrical engineers, several new challenges and opportunities are on the horizon.
Read more...
Custom mini substations for Zambian copper mine
Electrical Power & Protection
Recent orders to supply seventeen specially engineered mini substations for an underground copper mine in Zambia reinforces Trafo Power Solution’s track record in delivering customised electrical solutons for challenging environments.
Read more...
Unifying building information into a sea of insight
Schneider Electric South Africa
Electrical Power & Protection
Facility managers realise that in order to gain the most from building automation, they can longer deploy and operate technologies in isolation. Modern, integrated building management solutions address this challenge by bringing data from multiple sources and dispersed locations like HVAC, lighting, access control, lifts, generators, field devices, energy and
Read more...
Smart power solutions for a low-carbon future
ABB South Africa
Electrical Power & Protection
As the world marked Earth Day 2026, ABB is highlighting the role of low-voltage smart power solutions in improving energy efficiency, reducing emissions and enabling more sustainable infrastructure.
Read more...
printer friendly version