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800W DC-DC Converter Provides Space-Constrained Power Designers with High Power Density

800W DC-DC Converter Provides Space-Constrained Power Designers with High Power Density

GE's Critical Power business introduced its new QBVE067A0B Barracuda-series DC-DC converters, providing up to 800 W of 12 VDC output from an input voltage range of 40 to 60 V. The new converters provide the highest power density available in the industry today for 12 V solutions.

The Barracuda-series QBVE067A0B converters feature an industry-standard, DOSA-compliant quarter-brick footprint, measuring just 58.4 x 36.8 x 10.7 mm. Previously, two parallel 400 W converters would need to be installed to facilitate 800 W. The need for two modules to convert the power greatly reduces the amount of space available for other components. With GE's QBVE067A0B converters, however, the amount of required space is cut in half.

The Barracuda-series DC-DC converters are able to convert power from a wide range of input voltages to a low output voltage of 12 V at a maximum load current of 67 A. The output is fully isolated at 2,250 V from the input, allowing for versatile polarity configurations and grounding connections. In addition, the converters feature built-in filtering for both input and output, minimizing the need for external filtering.

The module's tightly regulated output voltage makes GE's latest DC-DC converters ideal for installations such as 12 V intermediate bus applications. Other ideal applications include distributed power architectures, servers and storage applications, supercomputers, automatic test equipment and networking equipment such as Power over Ethernet and high-speed 5G networks.

The QBVE067A0B DC-DC converters incorporate digital control, synchronous rectification technology, a fully regulated control topology and innovative packaging techniques to achieve efficiencies in excess of 96 percent at 12 V output voltages. This leads to lower power dissipations, reducing the need for a heat sink in many applications. However, the units do include a heat plate to attach an external heat sink or contact a cold wall if needed. Additional standard features include on/off control, output over-current and over-voltage protection, input under- and over-voltage lockout and over-temperature protection.

Key Features

  • 800-W output power from an input voltage range of 40 to 60 V
  • DOSA-compliant quarter-brick footprint
  • Highest power density available in the industry today for 12V solutions
  • 96 percent efficiency rating at 12V output
  • Output over-current and over-voltage protection
  • Over-temperature protection.

QBVE067A0B DC-DC converters are now available in volume quantities. Pricing begins at $63.08 per module at OEM quantities.

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