MANHASSET, N.Y. Artesyn Technologies Inc. has announced the public release of Revision 1.0 of the PMBus open-standard digital power management protocol and formed a special interest group to further develop and promote the PMBus power operating system.
Artesyn (Boca Raton, Fla.) pioneered the protocol along with Astec Power (Carlsbad, Calif.) and a number of semiconductor suppliers last October
to establish an open communications standard for digital control of power systems. Since the coalition was first formed, most major power companies have endorsed the protocol, including member companies of DOSA
(Distributed power Open Standards Alliance).
The establishment of the System Management Interface Forum as a formal SIG is expected to make the PMBus protocol available to a wide audience. The group set up a working committee known as the PMBus Implementers Forum, which just released the first formal revision of the specification, available at the group's website
Semiconductors and digital point-of-load power converters meeting the PMBus standard are slated to become available during the summer, according to Todd Hendrix, vice president of worldwide marketing and business development for Artesyn and a board member for SIG.
The PMBus digital protocol addresses the desire of OEM customers to have open standards that result in multi-sourced products. OEM customers can continue to design their systems' power architectures using discrete components or turnkey converter solutions. However, once the new protocol is widely adopted, the OEM will be able to control all compliant converters using the same set of commands.