1 Introduction

In the digital power or industrial drive applications, multiple phase topologies are much more popular with the increasing power level requirement. Even for the same power level, compared with the single power stage, using multiple converters in parallel can generally bring the below benefits:

• Better efficiency with lower conduction loss, by averaging the whole current on different modules
• Lower voltage/current ripples with interleaved control

However, the control for multiple phase applications will be more complicated, considering how to manage time-base synchronization and maintain correct phase relationship among different ePWM modules. Building on 20 years of real-time control expertise, C2000 microcontrollers have developed lots of dedicated features in ePWM peripheral to handle the proper control for multiple phase applications. In this report, it will address how to better use the new features in Generation 3 devices(F2838x, F2837x, F2807x, F28004x, F28002x), including load on sync, simultaneous writes, global load and one shot reload. For a list of all devices with an ePWM module of the same type, to determine the differences between the types, and for a list of device-specific differences within a type, see the C2000 Real-Time Control MCU Peripherals Reference Guide.