The Power Plant

Revised PMBus+™ Specification Will Impact You in Q1 2014

Once the PMBus+ V1.3 specification is standardized and adopted, companies interested in improving power management will benefit by enjoying significantly reduced manufacturing costs, increased functionality, and enhanced performance.

 

Background

The Power Management Bus (PMBus) is an open standard, power management protocol with a fully defined command language that facilitates communication with power converters and other devices in a power system. The current PMBus specification, which has been adopted by over forty IC and power supply manufacturers, is being revised to V1.3. PMBus+ V1.3 has broad implications for manufacturers of FPGAs, ASICs, SoCs, networking and communication processors, core processors for computing, server and storage markets, and any other type of core processor that will benefit by adaptively altering its own supply voltage.

 

PMBus+ V1.3 will include

·     Higher speed communication to reduce latencies

·     A dedicated Adaptive Voltage Scaling (AVS) bus to statically and dynamically control processor voltages

·     General enhancements and improvements from V1.2 On 9.12.2013, the initial revised PMBus+ V1.3 specification will be presented at the Darnell Power Forum.

Fig. 1. One-to-One Topology Single slave or multiple slaves with individual links
Fig. 1. One-to-One Topology Single slave or multiple slaves with individual links

Fig. 2. One-to-Multiple Topology Multiple slaves with a shared link PMBus+ V1.3 will heavily influence the direction of power management by including AVS.
Fig. 2. One-to-Multiple Topology Multiple slaves with a shared link PMBus+ V1.3 will heavily influence the direction of power management by including AVS.

 

An opportunity to participate in influencing

PMBus+ V1.3

Manufacturers now have a unique and timely opportunity to participate and contribute to developing the revised PMBus+ V1.3 specifications. But you need to act!

To learn more about the PMBus+V1.3 specification, contact Lodico and Company at 978-369-6556, or email [email protected] to be contacted by a member of the PMBus Working Group.

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