Next-generation products in high-reliability markets including medical, military and industrial along with innovations in telecommunications and wireless technologies are driving increased demand for high-efficiency DC power systems. These application areas are driving plenty of opportunities for DC-DC converters and modules that can deliver high efficiency, high power density, small footprints/low profiles, and a wide input voltage range.
Two of the biggest challenges that all product designers face is cost reduction and space savings. Some of the newest DC-DC converter and module designs address cost by eliminating the need for external components. Other designs deliver big on design flexibility, giving designers the choice between saving space and adding more features.
Here is a selection of several new DC/DC power products across a range of power levels.
XP Power has introduced six new series of high performance isolated DC-DC converters in industry standard SMD packages that deliver increased efficiency, isolation, and temperature range. Offered in single- and dual-output versions the compact devices are available in power ranges from 0.25 to 3 watts (W). They offer standard 1,500 or optional 3,000 VDC input / output isolation figures. These devices offer greater design flexibility by enabling designers to reduce system design or add additional features.
Also available in single- and dual-output models, the AEE10W-M series of 10 W DC-DC converters from Artesyn Embedded Technologies complies with industrial or medical safety standards for instrumentation that requires a certified supplementary or reinforced insulation system. Packaged in a 2 x 1-inch package, key features of the DC-DC converters include a wide input voltage range from 9 to 75 Vdc with three 2:1 input voltage ratings (9 to 18 V, 18 to 36 V and 36 to 75 V).
For the smallest designs, Texas Instruments offers a new series of Nano modules. TI launched four new SIMPLE SWITCHER nano power modules that the company claims to redefine power supply design for space-constrained applications. The 17-V and 5-V modules feature high performance in the industry's smallest packages, as small as 30 mm2. This translates into a 40 percent board space savings when compared to discrete implementations. The new modules also expand the SIMPLE SWITCHER line to address 100-mA to 2-A industrial designs, such as servers, factory automation, test and measurement, and network security cameras. The modules combine high efficiency with high density and reduce electromagnetic interference (EMI), even while operating at low power, said TI. As a side note, 2015 marks the 25th anniversary of TI’s SIMPLE SWITCHER line.
Ericsson offers its new PKB4216C series 200-W DC/DC converter module in a one-eighth-brick package. This power module is designed for radio-frequency power amplifier (RFPA) applications and supplying the voltage to power transistors used in integrated radio amplifiers. One of the key features of this power module is that it provides an ultra-wide adjustable output voltage range from 15 V to 33 V, which makes it possible to power a wide range of power transistors. This series has been designed for deployment in environments where only natural convection will be available.
In a one-eighth brick package, GE’s expanded Orca line of 100-watt DC-DC converters gives power system designers greater flexibility along with high efficiency and cost savings. The new ERCW003A6R DC-DC converters provide a typical efficiency of 93 percent at full load and a nominal output voltage of 28 volts. With a maximum output ripple of 40 millivolts root mean square, the ERCW003A6R helps reduce the need for external filtering capacitors and cuts overall system cost, said GE.
SynQor has added two higher power DC-DC converters to its RailQor line for a variety of systems in locomotive and railway electronics. These new converters increase power in the same standard footprints, and deliver high efficiency. SynQor tripled the usable power in the quarter-brick footprint to 150 W, and increased the power capability by five times to 252 W in the half-brick package. These ruggedized board-mountable DC-DC converters use synchronous rectification to achieve power conversion efficiencies up to 91 percent at full load and 93 percent at 50 percent load, while still maintaining 80 percent or greater efficiency at light load.
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