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
Further reading:
Wide-input DC/DC converters in 1/32nd bricks
Brabek
Power Electronics / Power Management
RECOM now offers through-hole, 1/32nd brick-footprint, non-isolated DC/DC converters – the RPMA-4.5 and RPMA-8.0 – with 4,5 A and 8 A output ratings respectively. Each part has a wide 9-53 V input and
...
Read more...
USB charger solution with high power density
Altron Arrow
Power Electronics / Power Management
Diodes Incorporated has launched a three-chip solution for enhancing the performance of ultra-high-power-density USB Type-C power delivery (PD) systems. These products can be used in a wide variety of
...
Read more...
Totem pole PFC controller
EBV Electrolink
Power Electronics / Power Management
A new addition was made to ON Semiconductor’s solution set for ultra-high density offline power supplies in the form of the NCP1680, a dedicated critical conduction mode totem pole PFC controller. It
...
Read more...
Compact offline switcher ICs
EBV Electrolink
Power Electronics / Power Management
Power Integrations introduced LinkSwitch-TNZ, a new switching power supply IC that combines offline power conversion, lossless zero-crossing detection and optionally, X-capacitor discharge functions in
...
Read more...
100 W and 300 W eighth-brick converters
Brabek
Power Electronics / Power Management
Recom has introduced two new cost-effective DC/DC products with outputs of 100 W and 300 W in a DOSA-compatible, low-profile, through-hole eighth-brick format (58,4 x 23 mm).
The RPA100E-W 100 W part
...
Read more...
High-side current sense amplifier with adjustable gain
NuVision Electronics
Power Electronics / Power Management
The MPQ8112A is a low-cost, unipolar, high-side current sense amplifier that operates from a 2,7 V to 60 V supply and typically consumes a 300 μA current. The Monolithic Power Systems part is ideal for
...
Read more...
Super-junction 800 V MOSFETs
Altron Arrow
Power Electronics / Power Management
The new super-junction STPOWER MDmesh K6 series from STMicroelectronics enhances several key parameters to minimise system-power losses. It is especially suited to lighting applications based on flyback
...
Read more...
DC/DC converter for forklift trucks
Vepac Electronics
Power Electronics / Power Management
The DC/DC converters of the series PCMDS550-FT from MTM Power are tailor-made to meet the requirements in forklift truck technology. Highest quality and safety are of particular importance when using
...
Read more...
Wide-input buck converters in tiny package
Brabek
Power Electronics / Power Management
RECOM now offers through-hole, 1/32nd brick footprint, non-isolated DC/DC converters by way of the RPMA-4.5 and RPMA-8.0, with 4,5&nbs;A and 8 A output ratings respectively. Each part has a wide 9-53 V input
...
Read more...
Air-insulated HV power supplies
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...
printer friendly version