High efficiency DC-to-DC converters for space satellite applications
21 April 2004
Power Electronics / Power Management
International Rectifier has introduced the Z Series family of 1,5, 2,5 and 3,3 V, single output DC-to-DC converters for geo-synchronous (GEO) and low earth orbit (LEO) satellite power systems.
Satellite power systems must supply proper voltage and current for complementary metal oxide semiconductor (CMOS) transistors and now BiCMOS, a combination of bipolar and CMOS. IR's new Z-family DC-DC converters employ synchronous output rectification and include the Z2801R5S, a 1,5 V, 20 A/30 W device that delivers 79% efficiency. IR says its 'off-the-shelf' solution enables a shorter lead-time than custom designs, streamlining satellite project time-to-market.
The new converters feature high radiation immunity, 100 krad (Si) minimum total ionising dose (TID) and single event effect (SEE) with LET (linear energy transfer) of greater than 80 MeV-mg-cm2.
Surface-mount technology is used for the larger passive and power components, while hybrid devices are used for control circuits to simplify assembly and achieve a small footprint. The components used in the Z Series converters are selected and de-rated per the requirements of MIL-STD-975 and MIL-STD-1547.
Further reading:
Wine farm turns to solar installation for power
Current Automation
Power Electronics / Power Management
Slanghoek Wine farm opted into a power purchase agreement to lower overall electricity costs and enter a true sustainable future, with a price-competitive edge on lower running costs.
Read more...
Industrial PSU family
Brabek
Power Electronics / Power Management
The RACPRO1 family of PSUs supports a universal DC input voltage range from 430 to 850 V DC, allowing the parts to support renewable energy and microgrid applications.
Read more...
Integrated POL voltage regulators
EBV Electrolink
Power Electronics / Power Management
Infineon’s TDA38807 and TDA38806 are their highest density high-efficiency integrated point-of-load (IPOL) solutions for smart enterprise systems.
Read more...
Hi-Rel quarter-brick converters
Accutronics
Power Electronics / Power Management
Gaia Converter’s quarter-brick series DC-DC power modules provides output power levels ranging from 75 to 250 W in fixed output voltages.
Read more...
1700 V GaN Switcher IC
Future Electronics
Power Electronics / Power Management
Power Integrations has introduced a new member of its InnoMux-2 family of single-stage regulated multi-output offline power supply ICs, the industry’s first 1700 V gallium nitride switch.
Read more...
How ADI battery management solutions empower safer, smarter robots
Altron Arrow
Editor's Choice Power Electronics / Power Management
Choosing an appropriate battery pack and its accompanying battery management system is a critical decision in designing an autonomous mobile robot.
Read more...
Industrial power supply range
RFiber Solutions
Power Electronics / Power Management
SynQor’s ruggedised AC-DC and DC-DC converters and filters are designed for a wide range of industrial applications, including those required to withstand harsh environments.
Read more...
PSUs for industrial applications
Power Electronics / Power Management
RECOM’s REDIIN120/240/480 series of AC-DC converters perfectly corresponds with customer needs by exhibiting high efficiency and low energy consumption at no load.
Read more...
Highest density automotive-grade power modules
Altron Arrow
Power Electronics / Power Management
Vicor has released three automotive-grade power modules for 48 V EV systems, which deliver industry-leading power density.
Read more...
MOSFET for automotive applications
Altron Arrow
Power Electronics / Power Management
Infineon’s OptiMOS 7 100 V is offered in the company’s versatile and robust, high-current SSO8 5 x 6 mm
2 SMD package.
Read more...
printer friendly version