GE’s QSD(V)W042A0B-Series DC-DC Converters
May 15, 2015
GE’s 500W QSDW042A0B and QSVW042A0B, Barracuda II-series industry-standard DC-DC converters are able to provide a precision voltage tolerance that is approximately 50 times tighter than GE’s previous-generation Barracuda modules. The new converters provide 12 volts of bus output voltage at a maximum load current of 42 amps and can be converted over the entire Telecom-grade, wide-input range of 36-75 volts. The new modules are designed to support 5-13.2-volt DC intermediate bus applications where multiple low voltages are subsequently generated using point of load (POL) converters and for applications requiring a tightly regulated output voltage. The QSDW042A0B/QSVW042A0B features an output that is fully isolated (at 2,250 volts) from the input, enabling it to be used in PoE (Power over Ethernet) applications and versatile polarity configurations and grounding connections.
The converter comes in an industry standard, DOSA-compliant, quarter-brick size. It incorporates digital control, synchronous rectification technology and innovative packaging techniques to achieve efficiencies of up to 96 percent peak at 12-volt output. This leads to lower power dissipations, eliminating the need for a heat sink in many applications and enabling the module to be used without much cooling needed. This industry-leading thermal de-rating (500-watts at up to 67 C ambient temperature and with an airflow of 600 linear feet per minute) reduces system-level costs. Additional standard features of GE’s QSDW042A0B/QSVW042A0B-series DC-DC converters include output voltage trim, remote sense, on/off control, output over-current and over-voltage protection, over-temperature protection and input under- and over-voltage lockout. The digital, QSDW042A0B-version of the module comes with PMBus interface and power good signal or optional customer interface signals. Digital communication and control allows designers to characterize and optimize their systems for performance, cost and reliability.
For more information about GE’s new DC-DC Barracuda II-series converters, please visit
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