Consortium successfully runs silicon carbide multiport DC-DC converter in EV

Green Car Congress

Silicon Carbide multiport DC-DC converter fitted to the Tata Vista EV. A consortium led by motorsport and technology company Prodrive has successfully run a silicon carbide-based multiport DC-DC converter in an electric car. A key aspect of the converter is the use of silicon carbide devices. The DC-DC converter acts as a hub that transfers energy between key components of the vehicle’s high voltage electrical system.

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Bosch offering sub-$10K 24 kW DC fast charger for North America; SAE J1772 DC Combo connector

Green Car Congress

Bosch Automotive Service Solutions has introduced the Power DCPlus DC fast charger in North America, starting at less than $10,000. Using the SAE J1772 DC Combo connector, the 24 kW Bosch Power DCPlus will charge compatible EVs to 80% in less than 30 minutes.

Trending Sources

ARPA-E awards $30M to 21 projects advance new class of high-performance power converters

Green Car Congress

CIRCUITS project teams will accelerate the development and deployment of a new class of efficient, lightweight, and reliable power converters, based on wide-bandgap (WBG) semiconductors. CIRCUITS projects will establish the building blocks of this class of power converter by advancing higher efficiency designs that exhibit enhanced reliability and superior total cost of ownership. Wide Bandgap Solid State Circuit Breakers for AC and DC Microgrids.

Norwegian Electric Systems to provide hybrid electric systems for three new ferries; Odin’s Eye DC grid system

Green Car Congress

Norwegian Electric Systems’ main DC system ensures the safe charging and discharging of the batteries. The DC system also includes NES’ Odin’s Eye solution, allowing for future upgrades of the vessels, such as larger battery capacity and/or higher charging power from shore.

2017 20

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

Green Car Congress

is showcasing a GaN-based, dc-to-dc boost converter running at more than 99% efficiency. The company’s GaN-based power converters are designed with 600 Volt transistors and low loss power diodes, will come in industry-standard packages, and are designed for optimum high-frequency switching, lowest loss and highest efficiency. Transphorm’s Total GaN-based Boost Converter operating at over 99% efficiency at 400 Volts demonstrates this for the first time.


Virginia Clean Cities requests proposals from Southeastern fleets interested in converting to propane Autogas

Green Car Congress

The Virginia Department of Mines, Minerals and Energy (DMME) and Virginia Clean Cities (VCC) at James Madison University (JMU) are requesting proposals from fleets in the southeastern US interested in converting eligible gasoline vehicles to run on propane autogas. Fleets in the following states are welcome to submit proposals: Virginia, Maryland, North Carolina, South Carolina, Georgia, Alabama, Florida, Louisiana, Tennessee, Mississippi and Washington DC.

Charger/DC-DC Arrives

Open Source Civic EV Kit

The 1200 watt charger is combined with the DC-DC converter on the right. The last piece of equipment from Belktronix arrived today. Here's the charging system from Belktronix.

Quantum launches new line of converted plug-in hybrid F-150 pickup trucks for fleets

Green Car Congress

has launched a new line of hybrid vehicles—converted plug-in hybrid versions of the Ford F-150 pickup, the highest volume selling vehicle in the US. 290–420 VDC DC/DC converter. Overview of the plug-in hybrid system for the F-150. Click to enlarge.

Hitachi Automotive Systems delivers compact, high-output inverters and DC/DC converters for Mercedes Benz S500 PLUG-IN HYBRID

Green Car Congress

has begun to supply Daimler AG with compact, high-output inverters and DC/DC converters for use in Daimler’s first plug-in hybrid—the S500 PLUG-IN HYBRID ( earlier post ) and S550 PLUG-IN HYBRID Long being marketed in Europe this autumn and Japan this month, respectively.

Debugging the DC-DC waveforms

Porsche 914 EV Conversion

I spent most of Friday trying to figure out just what was blowing the DC-DC converter. On the upper left, I have a 156V DC power supply. The opened up DC-DC converter is front and center.

Researchers convert sugarcane to a cold-tolerant, more photosynthetically efficient, oil-producing crop

Green Car Congress

million from the Department of Energy—to convert sugarcane and sorghum, two of the most productive crop plants known, into even more productive, oil-generating plants.

UK Consortium Develops New DC-DC Converter Technology

Green Car Congress

Hard-switched dual-interleaved boost converter with IPT. A UK consortium led by technology consultancy Prodrive has developed a bi-directional DC-DC converter that can deliver a 600V output from a 380V source and maintain its output even when the source voltage drops to as little as 200V. The new DC-DC converter is being designed to help reduce the cost, weight and package space associated with hybrid and electric vehicle battery packs.

DC-DC Installed and New Brake Parts

Porsche 914 EV Conversion

In was eager to get the new DC-DC converter installed so I left work a bit early and got to work so I could still drive the car to breakfast with my girlfriend tomorrow morning. The DC-DC converter fits rather nicely in the old space.

PakTrakr is Online! DC-DC blown again.

Porsche 914 EV Conversion

On a downer note, the CCPower DC-DC converter blew again (fuse was vaporized and FETs shorted out). The only difference was that the DC-DC converter was under a heavy load on the drive home because the headlights were on.

DC-DC Seems to Work!

Porsche 914 EV Conversion

This is the first time I've arrived home with the DC-DC converter still working! Let's cross our fingers and hope the DC-DC holds out. I just drove home from a meeting for half an hour with the headlights on. In the process of driving, the brake lights and turn-signals were also on. I'm going to give it a week and see if anything else causes a failure.

TU/e introduces converted VW Lupo electric research vehicle; lightweight and longer range

Green Car Congress

kW, 260 - 520 V DC out, programmable, water cooled, CAN. current 236 A (nominal), 400 A (peak), 80 - 400 V DC in, switching frequency 3-9 kHz, water cooled, CAN. DC-DC converter: MES-DEA 400-1000 150 - 400 V DC in, 13.3 - 14.4 V DC out, max.

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Transphorm introduces first qualified 600V Gallium Nitride product and demonstrates 99+% efficient DC-DC boost converter

Green Car Congress

To demonstrate the performance advantage of the GaN-based technology, Transphorm will showcase at the APEC exhibition a EZ-GaN-based, DC-to-DC Boost Converter running at more than 99% efficiency. GaN (gallium nitride) power electronics provider Transphorm Inc.

Siemens and BMW developing flexible rapid charging system for plug-ins that can use AC or DC

Green Car Congress

Siemens and BMW are developing a flexible rapid charging system to make it possible to use the same socket to charge up electric cars on either direct current (DC) or alternating current (AC). Siemens says the new system was successfully tested in September 2011 with a Siemens charging station and a BMW ActiveE vehicle, and Siemens and BMW have already submitted proposals for standardizing DC charging to the International Electrotechnical Commission (IEC).

New DC-DC here and Tranny Fluid Too

Porsche 914 EV Conversion

I let out a major sigh of relief today when the new Iota DC-DC converter showed up today along with the synthetic transmission fluid that ElectroAuto said they would send me. sells it as a DC-DC converter for many of their electric vehicle conversion kits.

Valeo introduces new 48V e4Sport hybrid system; all-wheel drive

Green Car Congress

The company plans to introduce the first air-cooled 48V belt starter generator and DC/DC converter next year. At the Paris Motor Show, Valeo introduced another 48V hybrid system, the 48V e4Sport.

2016 45

A Response from CC Power on the DC-DC

Porsche 914 EV Conversion

I just got an e-mail back from Electro Automotive from CC-Power regarding the failed DC-DC converter. Here goes: "The converters have been manufactured for over 20 years and we have 10,000+ units operating in South Africa at 120 volts, all using the same build, without any problems. The existing current limit system operates on a pulse by pulse basis and shuts the converter off immediately current exceeds a safe level.

Fraunhofer IAF develops first monolithically integrated GaN half bridge for voltage converters for e-mobility

Green Car Congress

Half-bridge circuits are the centerpiece of many voltage converters. For example, the switching frequency can be improved by a factor of around 10 in comparison with conventional voltage converters.

Finnish electric powertrain company Visedo raises €20M to support global expansion; SRPM technology

Green Car Congress

For power electronics, Visedo offers three main product groups: PowerMASTER inverters and frequency converters; PowerBOOST DC-to-DC converters; and PowerCOMBO multiconverters—a combination of inverters and DC-to-DC converters. Visedo, a Finnish manufacturer specializing in electric powertrains and components, has secured a financing package of €20 million (US$21 million) to support its international growth plans.

2016 41

UK consortium develops DC-DC converter

Green Cars News

The UK has been a hotbed for exciting new green technologies in recent months, and now a consortium led by technology consultancy Prodrive has developed a bi-directional DC-DC converter with the ability to deliver a 600V output from a 380V source. The converter, which has been designed to help reduce the cost, weight and package space associated with hybrid and electric vehicle battery packs, can maintain its output even when the source voltage slumps to as little as 200V.

Valeo, Siemens JV for high-voltage electric powertrains starts operation: Valeo Siemens eAutomotive GmbH

Green Car Congress

The portfolio comprises e-motors, range extenders, onboard chargers, inverters and DC/DC converters, destined for the entire range of on-road electric vehicles including hybrids, plug-in hybrids and full electric vehicles. The Valeo and Siemens joint venture dedicated to high-voltage powertrains ( earlier post ) has begun operation. Named Valeo Siemens eAutomotive GmbH, the JV is headquartered in Erlangen, Germany and is expected to have a total of around 1,000 employees.

ABB wins orders of over $300 million for world’s first 1,100 kV UHVDC power link in China

Green Car Congress

ABB supplies include advanced converter transformers and components such as bushings and tap changers. ABB will also supply the HVDC converter valves, DC circuit breakers, wall bushings and capacitors as well as provide system design support.

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Prodrive to develop converter for electric and hybrid vehicles

Green Cars News

The UK has another exciting innovation to boast of as automotive technology company Prodrive leads a consortium to develop a flexible DC-DC converter for electric and hybrid vehicles. Tags: Electric cars Green cars Latest news DC-DC converter electric vehicles hybrid vehicles International Transformers prodrive Raytheon Systems Ltd SciSys Tata Motors European Technical Centre Technology Strategy Board the University of Manchester

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Need for Speed: AC vs. DC motors

Electric Cars are for Girls

I'm considering converting a Mazda Miata to an electric car, and I've learned a lot reading your site. I really liked the page you

Consortium Developing New Flexible DC-DC Power Electronics System for Next Generation Hybrid and Electric Vehicles

Green Car Congress

The flexible converter will handle multiple voltages simultaneously on both the input and output sides. UK-based motorsport and automotive technology company Prodrive is leading a consortium of companies to develop a flexible DC-DC converter for electric and electric hybrid vehicles that will reduce the weight and space taken by the electrical power system. In complex architectures this requires several converters. DC-DC converters.

Renesas introduces small, 100kW-class inverter solution for HEVs and EVs

Green Car Congress

In an electrically powered system, the inverter plays a key role converting direct current (DC) power to alternating current and sends out optimum current to the motor whose rotation speed varies according to the driving conditions.

2017 28

Let My People Convert! - The A123 Challenge

Plugs and Cars

Les Goldman wants you to convert (your hybrid.) They've been converting some cars back east, working out the kinks. Lately Goldman has been driving one around DC, meeting with policy makers and pushing for consumer incentives for hybrid conversions. Let the people convert!

Eltek Valere introduces marine DC power system

Green Car Congress

The system also includes a number of Eltek Valere power systems for the receiving end to convert the high-voltage DC feed to the voltage required by the load. Eltek Valere has introduced the new Marine Power Concept based on a central uninterruptable 220 VDC power system with distribution to various critical functions onboard modern vessels. The Eltek Marine Power Concept is based on a larger central power system with a centralized battery bank.

Coritech Services orders Ideal Power’s bi-directional battery converters for DoD vehicle-to-grid program

Green Car Congress

Coritech intends to install the battery converters in its bi-directional electric vehicle charging system for use in Vehicle-to-Grid (V2G) applications for the Department of Defense (DoD). Multiple IBC-30kW-480 converters can be used in parallel to provide higher power capability.

SAE publishes J2954 Recommended Practice (RP) enabling wireless charging to 11 kW

Green Car Congress

The GA contains a grid-connected Power Factor Correction (PFC) converter, followed by a DC-AC inverter, a filter and impedance matching network (IMN) connected to the GA coil.

2017 32

Volvo Buses officially launches the all-new plug-in Electric Hybrid bus

Green Car Congress

To enable full electric drive, the bus is equipped with electric power steering; an electrical air compressor ; and a DC/DC unit that converts 600 V power to 24 V power. The DC/DC unit replaces the conventional alternator.

2014 37

Alstom unveils hydrogen fuel cell regional train Coradia iLint

Green Car Congress

During acceleration phases , the power of the fuel cell will be mainly used to supply traction power demand by the traction inverter and the onboard systems power demand via the auxiliary converter. This power is used to supply the onboard systems via the auxiliary converter.

2016 46

Coulomb and Aker Wade Announce Availability and Sale of First Networked DC Fast Charging Station

Green Car Congress

Coulomb Technologies and Aker Wade Power Technologies announced the availability of their Networked DC Fast Charging Stations for Electric Vehicles (EVs). Networked DC Fast Charging Station. The Networked DC Fast Charge Station is distributed, marketed and supported by both companies.

Audi unveils h-tron quattro fuel cell SUV concept at Detroit; MLB evo platform

Green Car Congress

The storage battery operates over the range of 220 to 460 volts—a 3-way DC/DC converter in the engine compartment equalizes the difference compared with the fuel cell’s voltage level. 3-way power DC/DC converter.

2016 53

Silicon Mobility introduces new software library and app for optimizing EV, HEV efficiency, battery range and charging speed

Green Car Congress

It includes advanced functions for inverter, DC/DC converter and AC/DC charger systems control.

2017 33

Siemens to collaborate more closely with Semikron on automotive power electronics; takes over Semikron subsidiary

Green Car Congress

VePoint’s VPID integrated inverter and DC/DC converter. VePOINT has developed its own inverter platform which features a compact design, high power densities, an optional combination of inverter and DC/DC converter, high power/weight ratios and maximum reliability.

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