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Transphorm introduces Gallium Nitride diode; >99% efficient DC-DC boost converter

Green Car Congress

Transphorm says that its solutions cut energy waste by 20% and simplify the design and manufacturing of a wide variety of electrical systems and devices, including motor drives, power supplies and inverters for solar panels and electric vehicles. is showcasing a GaN-based, dc-to-dc boost converter running at more than 99% efficiency.

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GM investigating ultracap-based Active Energy Recovery Buffer as low-cost mechanism to improve conventional vehicle fuel economy

Green Car Congress

GM is exploring the use of an ultracapacitor-based Active Energy Recovery Buffer (AERB) scheme as a low-cost means to improve fuel economy in conventional vehicles; results of a simulation study presented at SAE 2011 World Congress showed improvement of up to 1.3% liter engine and a six-speed transmission.

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Hyundai introducing 48V mild hybrid system with 1.6L diesel in Europe

Green Car Congress

The technology comprises a 48-volt battery, a Mild Hybrid Starter Generator (MHSG) and LDC converter (Low Voltage DC/DC). In addition to the 48V electrical system, the vehicle is equipped with the conventional 12V electrical system, which is connected via the DC/DC converter to the 48V system.

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DENSO and USJC collaborate on automotive power semiconductors

Green Car Congress

This collaboration is supported by the renovation and decarbonization program for indispensable semiconductors of Japan’s Ministry of Economy, Trade and Industry. IGBTs are core devices in power cards, serving as efficient power switches in inverters to convert DC and AC currents in order to drive and control electric vehicle motors.

Powered 150
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OEMs shifting towards onboard chargers > 6 kW for EVs; lower output chargers to remain dominant through 2020

Green Car Congress

More than 15 major companies supply onboard chargers globally, with Lear Corporation and Panasonic in key positions as suppliers for Chevrolet Volt and Nissan Leaf. For example, ABB has developed a 43 kW AC charging station that is compatible with the Renault Zoe’s 43 kW onboard charger. The 3.3kW chargers in today’s EVs are unidirectional.

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Ricardo to display functional integration prototype of ADEPT 48V “intelligent electrification” diesel

Green Car Congress

Based on a Ford Focus, this ADEPT prototype incorporates a 48V electrical architecture, a SpeedStart 10kW (later to be upgraded to 12.5kW) belt integrated starter generator and TIGERS turbine integrated exhaust gas energy recovery system, both switched reluctance machines supplied by CPT, and an advanced lead carbon battery pack provided by EALABC.

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Transphorm introduces 600V Gallium Nitride on Silicon products at PCIM 2012

Green Car Congress

Transphorm’s solutions cut energy waste by 50% today and simplify the design and manufacturing of a wide variety of electrical systems and devices, including motor drives, power supplies and inverters for solar panels and electric vehicles.

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