Tech news tagged ‘power’

Avago optocoupler has flyback controller to drive IGBTs

Avago Technologies has introduced a gate drive optocoupler device that integrates a flyback controller for DC-DC converters and fail-safe IGBT diagnostics.

The device’s 2.5A rail-to-rail output makes it suitable for driving IGBTs and power MOSFETs in industrial power inverters and motor drives.
“By integrating…

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Google offers $1m power inverter challenge

Google, together with the IEEE, is offering $1m to the person or team who best shrinks the size of power inverters, in something called the ‘Little box challenge’.

“We’re looking for someone to build a kW-scale inverter with a power density greater than 50W/inch3,” said the firm…

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Mini 4W power supply for extreme temperatures

Small format 4W power supplies designed for wide operating temperature range of -40°C to +80°C from Recom can be used to supply outdoor sensors or control units in residential as well as industrial applications.

The RAC04-C/230 series has a wide input voltage range of 80-264VAC…

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Current-voltage monitor has 16-bit precision

Intersil has introduced a family of digital power monitors capable of supporting a wide common mode input voltage range of 0 to 60V.

The ISL2802x range of devices have a 16-bit native resolution sigma-delta ADC (gain error = +/- 0.05% Typ.) for measurement precision and are available as bi…

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Ericsson and Murata in digital power pact

Murata Power Solutions and Ericsson have teamed up to accelerate the adoption of digital power products.

The two power supply manufacturers have signed a technical collaboration agreement which includes the introduction of a range of standardised digital power modules.

“We believe this joint initiative will encourage manufacturers to speed up…

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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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