Digital power solution offers system-level benefits compared with hybrid digital and analog alternatives

December 23, 2011 // By Paul Buckley
International Rectifier has introduced a digital power solution featuring GUI-based VR design for fast, real-time tuning and system-level optimization powers All New 3-Way Digital X79 motherboards from GIGABYTE, a leading manufacturer of motherboards and graphics cards.

“As a pioneer in the manufacture of motherboards and graphics cards, we embraced the leading-edge true digital power solution offered by IR. We were able to implement an extremely high performance overclocking feature set using IR’s unique range of technologies. As a result, IR’s easily implementable, highly efficient and effective system-level solution was exceptionally well suited to our all digital 3D Power X79 Series of motherboards,” said Henry Gao, Vice President of the GIGABYTE Motherboard Business Unit.
Deepak Savadatti, Vice President and General Manager, IR’s Enterprise Power Business Unit, explained: “We engineered enormous flexibility and superior voltage regulation into our controllers, allowing GIGABYTE and their customers to overclock these newest complex processors and DDR memory to levels that were not possible with analog or hybrid digital control.”
Featuring Dynamic Phase Control (DPC) and Variable Gate Drive (VGD) technology, IR’s true digital solution enables more efficient delivery of power to the processor over the entire load range to enhance system performance and end-user experience. IR’s CHiL digital controller eliminates many external components necessary using hybrid digital or analog controller solutions to offer a small, high density solution that allows incremental space on the motherboard to add extra system-level features.
The IR digital platform features a non-linear control architecture (adaptive transient algorithm, ATA) to allow best dynamic response with reduced output capacitor count to keep up with the demanding and highly variable workloads of the processor. Its true digital engine allows superior on-the-fly performance optimization across the full operating range and even above the range of the processor without the need to modify hardware, while maintaining fully stable operation. The solution also provides a full suite of telemetry via built-in I2C digital interface to offer real-time monitoring of voltage, current, temperature and power to fully optimize and maximize power delivery to the processor.
IR’s end-to-end DC-DC solutions offer an opportunity to optimize performance, power density, solution cost and