In the space of real-time power conversion that continuously demands higher performance and efficiency, it is critical for designers to invest in scalable and sustainable industrial and automotive power conversion solutions. This demand, in turn, leads to real-time control system requirements like the number of million instructions per second (MIPS), pulse-width modulators (PWMs) and analog-to-digital converters (ADCs) to increase within servo drive, power delivery, grid infrastructure and on-board charging applications. It also leads to developers’ need to build and maintain their lines of products with simplicity and low-risk. Performance scalability and portfolio compatibility provide developers a low-effort and cost-effective way to scale real-time control resources and maintain platforms of long-term power conversion solutions.
Scaling real-time control resources through distributed architectures
The rise of renewable energy is pushing the trend for higher power levels in applications like solar inverters. With the increase of power levels comes the need for more real-time control resources like MIPS, PWMs and ADCs, which play a critical role in the power conversion process. The typical way to address this need is through a single centralized controller – controlling the multiple power stages in the solar inverter system. What happens when this controller runs out of resources to address the higher power levels and the increasing number of power stages? The solution that designers have been looking for is distributed architecture.
The idea behind distributed architecture is the following: Connect multiple real-time control MCUs to scale the number of resources and peripherals available to your system. This implementation enables designers to achieve the performance and efficiency that is demanded from their products without compromising on
TI’s C2000 portfolio of real-time control MCUs brings the real value of power conversion through a distributed architecture implementation while addressing the 3 items listed above:
Figure 1: Leveraging FSI to connect multiple controllers for scalable resources
Ease migration and platform development through portfolio compatibility
Along with resource scalability, designers are faced with the challenge of building and maintaining platforms of products. To do so efficiently, there needs to be a low-effort and low-risk method to build lines of products from high-end to mid-end to low-end.
The C2000 real-time control MCU portfolio provides peripheral and code compatibility across device families, alleviating effort for developers working with a range of products. This simplifies the process to migrate and build a range of products based on similar MCU technology, enabling a sustainable platform solution. Figure 2 shows the portfolio of pin-to-pin, peripheral- and code- compatible device families within the third-generation of C2000 real-time control MCUs – ranging from high-end to mid-end to low-end.
Figure 2: Peripheral and code compatibility across the C2000 portfolio
In the evolving market of automotive and industrial power conversion, designers are looking for innovations that help them meet 2 critical design challenges: how to easily scale up real-time control resources, and how to build and maintain long-term, platform solutions. The connection of multiple C2000 real-time control MCUs through FSI for scalable MIPS, PWMs and ADCs in applications like solar inverters and distributed multi-axis servo drives is a low-effort, low-risk and cost-effective solution to scaling real-time control resources. At the same time, the code and peripheral compatibility of the device families within the C2000 portfolio enables the development of long-term platforms with low-effort and low-risk. The F28002x device family not only provides a cost-effective way to scale real-time control resources through distributed architecture, but adds to the existing compatible C2000 portfolio that enables designers to build long-term, sustainable solutions.
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