HV DC powertrain solution

4 March 2009 Power Electronics / Power Management

V.I Chip has announced the availability of a 330 W, 380 V to 48 V DC, 1/16th brick footprint BCM bus converter to complete the powertrain conversion to processor and memory loads in HV DC distribution data centres.

The VIB0002TFJ uses a MHz-switching ZVS, ZCS sine amplitude converter with a high power density and over 95% efficiency, providing over 4000 V of safety isolated 330 W power for downstream loads.

In parallel ‘eco-array’ configurations, 380 V to 48 V conversion is achieved at over 90% efficiency from 10% light load all the way to full-load at multikW power levels. The new BCM provides a vital link in the progression to 380 V DC data centres, enabling conversion to the industry-standard 48 V DC rail.

From there, it is an easy and efficient step to high-current, sub-1 V loads using established factorised power architecture components. The small size and high power density allows a flexible architectural choice for the system designer to locate the power conversion stage per rack, per shelf or even per individual processor blade.

Further reading:

Analysis of switch-mode power supply: inductor violations
Altron Arrow Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.

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Compact PCB-mount SMPS
RS South Africa Power Electronics / Power Management
Traco Power’s 5W PCB-mount switch mode power supply (SMPS) offers high efficiency, and is well suited for a variety of applications in the automation, electronics, electrical and mechanical industries.

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AC-DC brick PSU
Conical Technologies Power Electronics / Power Management
These PSUs have a typical efficiency of up to 92%, and a power factor value of up to 0,99. They are available in 12, 24, 28, 48 and 54 V output versions.

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5 kW switching PSU range
Conical Technologies Power Electronics / Power Management
Mornsun has released a new switching power supply range, the LMF5000-25Bxx, which has a 5000 W capacity, and features universal AC input configurations.

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Reliable charging range
Current Automation Power Electronics / Power Management
Whether you’re powering essential electronics, keeping emergency equipment operational, or maintaining the performance of critical machinery, the need for dependable charging solutions cannot be overstated.

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Microchip expands its mSiC solutions
EBV Electrolink Power Electronics / Power Management
The highly integrated 3,3 kV XIFM plug-and-play digital gate driver is designed to work out-of-the-box with high-voltage SiC-based power modules to simplify and speed system integration.

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Dual-port USB-C power delivery solution
Altron Arrow Power Electronics / Power Management
Infineon’s CYPD7272-68LQXQ is the tray packing option of the company’s dual-port USB-C power delivery solution and features an integrated dual-port USB-C PD + DC-DC controller.

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Parallel redundancy power module
Conical Technologies Power Electronics / Power Management
The LIR40-40 is a wide input range DC-DC module, with a constant output of 48 V at a nominal output current of up to 40 A.

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Motor protection relay front-end
NewElec Pretoria Power Electronics / Power Management
Newelec’s Motor Protection Relay front-end software isn’t just another tool, it’s a game changer that puts control firmly in your hands.

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High-power three-phase supplies
Current Automation Power Electronics / Power Management
The units from Meanwell can either be supplied with a three-phase three-wire delta input of 196 to 305 V AC, or they can use a three-phase four-wire star connection of 340 to 530 V AC.

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