PMBus: A Decade of Growth: An open-standards success

Ten years ago, in September 2004, at the Darnell Power Forum in San Jose, California, I made the presentation that introduced the PMBus power management protocol. This was an important moment for the commercial power supply industry. The PMBus protocol was the first time the commercial power supply industry came together to cooperate and create an open standard. The success of the PMBus protocol laid the groundwork for later open standard efforts, such as the Point-of-Load Alliance (POLA) and the Distributed-power Open Standards Alliance (DOSA). The fact that the PMBus standard has not only succeeded but also continued to grow and evolve is the result of the great foundation laid by the first PMBus specification working group.