Posts Tagged ‘power’

ABB to buy Power-One for solar energy business

ABB has agreed to acquire US-based power firm Power-One in a deal valued at $1,028m. Swiss firm ABB is bidding to strengthen its position as a supplier of solar inverters used in photovoltaic (PV) solar energy systems. “Solar PV is becoming a major force reshaping the future…

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TI offers first power gauge for multi-cell lead-acid battery packs

Texas Instruments has developed its first battery management gas gauge IC for multi-cell lead-acid battery packs. Lead-acid batteries typically behave better than lithium chemistries in environments with wide temperature ranges, says TI, but lead-acid battery designs do not accurately measure and report current battery capacity. The…

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Hybrid car batteries get new data interface

A new data interface for battery management systems has been designed to provide interference immunity and to support distributed battery systems, writes Jon Munson from Linear Technology.For reliability of battery packs being designed into hybrid electric vehicle drive-trains, an important factor is the electronics employed in the battery…

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TI claims chip will cut smartphone charge time in half

Texas Instruments claims its latest lithium-ion battery charger IC can reduce charge time by 50% in smartphones and tablets compared to today’s designs.

The bq2419x family of 4.5A output, 20V input-rated switch-mode chargers have a I2C interface and USB On-the-Go is supported, and…

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Cree aims SiC mosfets at lower cost designs

Cree’s latest SiC 1200V mosfets have been designed and fabricated to offer lower cost than previous generation mosfets. The product range has been extended to include a much larger 25mOhm die aimed at the higher power module market for power levels above 30kW. The 80mOhm device is intended as…

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GaN converts 5kW at 98.5% efficiency

APEI and GaN Systems have developed a 1MHz gallium nitride power dc-dc boost converter delivering 5kW at 98.5% efficiency. GaN power transistors are lightning fast, have low on-resistance, and are been proposed for converters working between 600 and 1,200V. “Testing demonstrated turn-on and turn-off…

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TI offers arcing protection for photovoltaic circuits

Texas Instruments has introduced its first fully programmable DC arc detect reference design. It is designed to protect high-power DC systems such as aircraft battery management systems, industrial factory equipment and photovoltaic units, against the catastrophic damage that can result from arc faults. The RD-195 can be programmed…

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Tektronix plans move into the power analyser market

Tektronix says it will launch its first power analyser instruments in the coming months. Supporting this move, Tektronix has implemented a technology transfer agreement which includes power analyser intellectual property, patents and product designs from its partner Voltech. Tektronix says Voltech will exit the power analyser business by September. “This…

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Intersil has one design platform for all PMBus power chips

Intersil has created a single software platform for all of its PMBus-enabled power management products. The PowerNavigator software will be introudced at this year’s Applied Power Electronics Conference (APEC) in Long Beach, California on March 17-21.

It is designed to allow configuration and monitoring of multiple PMBus…

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Liquid-cooled server first in Leeds

A liquid-cooled computer server designed in the UK is being tested at the University of Leeds. The claim is the system which effectively immerses the components of the server in liquid is more energy efficient than air-cooled systems which require fans. Its designers calculate that the server cuts…

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