1,2 mm high compact wire-wound power inductors have 50% smaller footprint
18 April 2007
Power Electronics / Power Management
Taiyo Yuden's BRL2518 series of wire-wound power inductors measure just 2,5 x 1,8 mm with a 1,2 mm maximum height. The five models in the series offer a superior combination of low DC resistance (0,8 to 0,4 Ω), high inductance (1,0 to 4,7 μH) and high current ratings (1,6 to 0,7 A).
Continuing miniaturisation requires more compact, high-efficiency DC-DC converters to maximise battery power. Designing smaller converters hinges on reducing the size of the choke coil, its main and largest component. However, reducing the size of the wire-wound inductor (functioning as a choke coil to prevent or limit AC while allowing DC to flow) increases resistance and reduces the efficiency of the DC-DC converter. For this reason, it is very difficult to reduce the size of an inductor while maintaining the lower-resistance characteristics of larger components.
By improving the traditional round drum/sleeve core technology used, Taiyo Yuden developed a unique sleeveless square-core winding that successfully eliminates all wasted space. The thickened lead wire inside the inductor achieves the lowest possible DC resistance. The result is a compact, high-efficiency choke coil reducing surface area by half compared to conventional inductors, while providing a minimal level of DC resistance. This series facilitates more compact DC-DC converters and thinner-profile product designs.
Further reading:
The role of bidirectional charging in the evolving energy landscape
Avnet Silica
Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.
Read more...
How to calculate a buck converter’s inductance
Power Electronics / Power Management
In the buck circuit, the inductor design is a key element that is closely related to system efficiency, the output voltage ripple, and loop stability.
Read more...
High-current EMI filters
Accutronics
Power Electronics / Power Management
TDK has introduced 20 and 40 A, 80 V DC board-mount EMI filters, reducing differential mode conducted emissions for switching power supplies with high input current requirements.
Read more...
Isolated SMD DC-DC converters
iCorp Technologies
Power Electronics / Power Management
MinMax has launched a series of isolated SMD DC-DC converters, the MSU01 series delivering 1 W, while the MSU02 series offers 2 W output.
Read more...
Next-gen power meter
Electrocomp Express
Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.
Read more...
Advanced PMIC for high-performance AI applications
ASIC Design Services
Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.
Read more...
New SiC power MOSFET
Future Electronics
Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.
Read more...
Fundamental motor control design challenges and solutions
Power Electronics / Power Management
Mouser Electronics has announced a new eBook in collaboration with Qorvo, featuring industry experts providing key insights into methods, power efficiency and integration solutions available for motor control applications.
Read more...
Power management IC for battery products
Power Electronics / Power Management
The nPM1304 PMIC complements Nordic’s nPM1300 PMIC with a highly integrated, ultra-low power solution and precision fuel gauging for small size battery applications.
Read more...
Powering Innovation eBook: Changing what’s possible
Power Electronics / Power Management
This exclusive read, entitled ‘Changing what’s Possible,’ delves into how power dense Vicor modules enable many world-changing innovations across various sectors.
Read more...
printer friendly version