Power Management Bus

The Power Management Bus (PMBus) is a variant of the System Management Bus (SMBus) which is targeted at digital management of power supplies. Like SMBus, it is a relatively slow speed two wire communications protocol based on I²C. Unlike either of those standards, it defines a substantial number of domain-specific commands rather than just saying how to communicate using commands defined by the reader.

Alternates: CAN bus

Resources

• Wikipedia
• Arduino PMBus Power System Prototyping (paper) TODO: fulltext link
• Digital Voltage Regulator Control Using PMBus