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Benefits of Asynchronous Control for Analog Electronics: Multiphase Buck Case Study

Lookup NU author(s): Dr Danil Sokolov, Vladimir Dubikhin, Dr Victor Khomenko, Dr Andrey Mokhov, Professor Alex Yakovlev



This is the authors' accepted manuscript of a conference proceedings (inc. abstract) that has been published in its final definitive form by IEEE, 2017.

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Analog and mixed signal (AMS) electronics becomes increasingly complex and needs to be digitally enhanced by itsown control circuitry. The RTL synthesis flow routinely used for digital logic is however optimized for synchronous data processing and produces inefficient control for AMS. In this paper we demonstrate the evident benefits of asynchronous circuits in the context of AMS systems, and propose an asynchronous design for analog electronics (A4A) flow for their specification, synthesis, and formal verification. A library of specialized analog-to-asynchronous (A2A) components is developed for interfacing analog signals to asynchronous control. A4A flow is automated in the WORKCRAFT framework and evaluated using a multiphase buck converter case study. The simulation results show improvedresponse time, voltage ripple, and peak current of the buck when controlled asynchronously. These benefits lead to the higher efficiency of power conversion, and can be traded off for the cost of analog components. A4A flow, A2A interfaces, and WORKCRAFT tools are used for development of power converters at Dialog Semiconductor.

Publication metadata

Author(s): Sokolov D, Dubikhin V, Khomenko V, Lloyd D, Mokhov A, Yakovlev A

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Design, Automation & Test in Europe Conference & Exhibition (DATE)

Year of Conference: 2017

Pages: 1751-1756

Online publication date: 15/05/2017

Acceptance date: 11/11/2016

Date deposited: 30/11/2016

ISSN: 1558-1101

Publisher: IEEE


DOI: 10.23919/DATE.2017.7927276