Mixed signal processors underpin precision PVpower conversion

February 24, 2016 // By Graham Prophet
Analog Devices has disclosed what it terms a revolutionary addition to its power conversion platform, with an series of mixed-signal control processors. The ADSP-CM41x series is designed to simplify system design, lower cost, and improve efficiency and safety in solar, energy storage, and electric vehicle infrastructure.

Solar panels and battery systems have become significantly less expensive, creating the need for inverter technologies to drive the next wave of efficiencies in solar energy, requiring further advances in digital processing to unlock their full potential. The ADSP-CM41x control processors extend the level of hardware integration specifically tailored to solar and other emerging energy applications. By reducing the need for complex external circuitry, the ADSP-CM41x control processors deliver design time and cost reductions, safety improvements, and the precision gains needed to maximize the impact of today?s inverter designs.

Central to the ADSP-CM41x design is its “dual independent core” safety concept, which enables the integration of safety redundancy and functions into a single chip. This architecture saves development time and system cost by eliminating the need for an external supervisory element, which is the current standard. Equally important is the on-board integration of optimised hardware accelerators, designed to offload work from the processor core and boost the processing power available for core functions. The device's on-board arc fault detection simplifies design, and enhances safety by using intelligent decision making to improve reliability and accuracy.

The ADSP-CM41x, ADI adds, establishes a new benchmark in ARM core processing and analogue precision, integrating with other critical signal chain components, including the AD740x sigma delta-based A/D converter, which replaces larger, more expensive sensor modules to reduce system cost and improve isolated current measurement. Also included in the platform is the ADuM413x series of isolated gate drivers featuring iCoupler isolation technology that enables faster switching to further increase system efficiency.



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Analog Devices; www.analog.com/ADSP-CM41x.html