TIDUF18A October 2022 – February 2024
Most power electronics converters need protection from overcurrent events. For this design, multiple comparators are needed, and references for the trip points need to be generated. Using C2000 MCUs—such as TMS320F280039, which has an on-chip windowed comparator as part of the Comparator Subsystem (CMPSS) along with 12-bit DACs for trip set points—that are internally connected to the PWM module enables fast tripping of the PWM without the need of external hardware. This saves board space and cost in the end application as extra components can be avoided by using on-chip resources such as DAC, comparators, and ADC. All of these resources can be used together and at the same time, without any extra external connections. Furthermore, the CMPSS-generated signals go to the X-Bar, where they can be combined in different and unique fashions to flag unique trip events from multiple sources.