Power Electronics / Power Management


Integrated transformer module technology maximises EV drive time

27 October 2021 Power Electronics / Power Management

Texas Instruments (TI) has introduced what it acclaims as the industry’s smallest and most accurate 1,5 W isolated DC/DC bias-supply module. The UCC14240-Q1 uses a proprietary integrated transformer technology which the company says can enable designers to cut their power solution size in half for use in high-voltage environments such as electric vehicles (EVs), hybrid EVs, motor-drive systems and grid-tied inverters.

With the accelerating growth of the EV market, automotive design engineers are looking for ways to improve efficiency and reliability, while also reducing the weight of the heaviest part of the EV: the powertrain. To help meet the need for smaller, more reliable systems to extend driving range, engineers are moving to a distributed power architecture, a scheme where every isolated gate driver has a dedicated bias supply. This architecture improves how the system reacts to single-point failures. For example, if one bias supply fails, the other bias supplies remain operational, as do their paired gate drivers – helping to keep a vehicle safely on the road.

The UCC14240-Q1 offers size and efficiency advantages that enable greater power density and system efficiency, which can allow vehicles to drive farther between charges. The 3,55 mm height and small footprint of the chip enable designers to reduce the power solution volume by as much as 50%, packing more power in half the size. The height reduction also gives engineers the full flexibility to place the module on either side of the printed circuit board.

This dual-output power module offers 60% efficiency – twice that of traditional bias supplies – doubling the power density and helping increase vehicle driving range. By delivering more than 1,5 W at ambient temperatures of 105°C, the UCC14240-Q1 enables engineers to drive IGBTs, SiC and GaN switches at high frequencies.

By leveraging TI’s integrated transformer technology with a 3,5 pF primary-to-secondary capacitance, the UCC14240-Q1 can mitigate EMI caused by high-speed switching and comfortably achieve common-mode transient immunity (CMTI) performance of more than 150 V/ns.

The UCC14240-Q1’s integrated closed-loop control enables ±1,0% accuracy from -40°C to 150°C. The device’s tight tolerance enables the use of smaller power switches while also improving overcurrent protection. Fault monitoring, overcurrent protection, overpower protection and overtemperature protection are all fully integrated. The UCC14240-Q1 offers third-party-certified 3 kVrms isolation and delivers high vibration immunity due to its ultra-low weight and height.

For more information visit www.ti.com




Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Air-insulated HV power supplies
27 October 2021, Vepac Electronics , Power Electronics / Power Management
XP Glassman’s OQ Series of high-voltage AC/DC power supplies are sophisticated 8 kW or 16 kW open-stack units with extremely low ripple and noise. The air-insulated, fast-response supplies exhibit tight ...

Read more...
Integrated buck power module with configurable settings
27 October 2021, NuVision Electronics , Power Electronics / Power Management
The MP5479 is a complete power management solution that integrates four high-efficiency step-down (buck) DC/DC converters, five low-dropout (LDO) regulators and a flexible I2C interface. Constant-on-time ...

Read more...
Power modules for electric vehicle charging infrastructure
27 October 2021, Phoenix Contact , Power Electronics / Power Management
With its Charx power fast-charging DC modules, Phoenix Contact offers efficient DC power electronics for fast-charging electric vehicle (EV) stations. The new 30 kW modules are available as AC/DC converters ...

Read more...
Tiny 5 W to 150 W power modules
27 October 2021, Electrocomp , Power Electronics / Power Management
TDK’s series of µPOL DC-DC converters, with their compact size and high power density, are ideal point-of-load solutions for applications such as big data, machine learning (ML), artificial intelligence ...

Read more...
Medical and industrial PSU delivers 1000 W peak
27 October 2021, Accutronics , Power Electronics / Power Management
New TDK-Lambda CUS350MP-1000 AC-DC medical and industrial certified power supplies boast low audible noise for applications requiring occasional high peak power demands, medical equipment utilising DC ...

Read more...
Isolated SiC gate driver
27 October 2021, Altron Arrow , Power Electronics / Power Management
STMicroelectronics’ STGAP2SiCSN single-channel gate driver, optimised to control silicon carbide (SiC) MOSFETs, comes in a space-saving narrowbody SO-8 package and delivers robust performance with accurate ...

Read more...
Railway certified DC/DC converters
27 October 2021, Conical Technologies , Power Electronics / Power Management
The THN 30WIR is a series of DC/DC converters designed for the highest reliability in harsh environments. With an output power of 30 W, this series expands Traco Power’s portfolio of EN 50155 railway ...

Read more...
Power supplies for e-mobility charging infrastructure
27 October 2021, Phoenix Contact , Power Electronics / Power Management
The Step Power family from Phoenix Contact has been extended to include new devices for e-mobility charging infrastructure. The new 12 V power supplies have a compact design that makes them ideal ...

Read more...
Installation considerations for open-frame and U-channel power supplies
27 October 2021, Vepac Electronics , Power Electronics / Power Management
Datasheets for open-frame and U-channel power supplies commonly identify the key safety components and their maximum temperature ratings, which vary depending on the class of insulation system employed.

Read more...
Fully configurable gate driver for SiC MOSFETs
29 September 2021, Future Electronics , Power Electronics / Power Management
As demand for electric buses and other electrified heavy transport vehicles increases to meet lower emission targets, silicon carbide (SiC)-based power management solutions are providing greater efficiencies ...

Read more...