Landscape of Synaptic Weight Memories

Virtual: https://events.vtools.ieee.org/m/284899

The Electron Devices Society (EDS), Northern Virginia/Washington Jt. Sections Chapters joined with The Nanotechology Council (NTC) are pleased to host an EDS Distinguished Lecture presented by Prof. Shimeng Yu, School of Electrical and Computer Engineering, Georgia Institute of Technology. Please register to receive the WebEx link the day before the event. ------------------------------------------------------------------------------ Analog multilevel memories are the enabling device technologies for hardware acceleration of neuro-inspired computing workloads. In this lecture, we will survey the landscape of the emerging non-volatile memories that could serve the synaptic weights with a focus on resistive and ferroelectric devices. We will highlight the key device properties that are required for on-chip inference and/or training of deep neural network (DNN) models. We will use a multi-bit RRAM test vehicle to characterize the variability/reliability at array-level for inference. Then we will introduce an end-to-end benchmark framework DNN+NeuroSim to that is interfaced with PyTorch to evaluate versatile device technologies for DNN inference. Hybrid precision synapse that combines non-volatile memories with volatile capacitor is also presented to achieve in-situ training accuracy that is comparable with software. We will also showcase the integration of RRAM with peripheral CMOS at 40nm for a complete compute-in-memory prototype chip. Future research directions will be discussed. Speaker(s): Prof. Shimeng Yu, Virtual: https://events.vtools.ieee.org/m/284899

SMART Power Flow Controllers – A Necessity for Future Power Grid

Virtual: https://events.vtools.ieee.org/m/282280

Power flow control techniques have been practiced, from using inductors, capacitors, transformers and load tap changers in the earlier days of electrical engineering to power electronics-based solutions in recent years. Even though the costs and complexities of the available solutions vary widely, the basic underlying theory of power flow control is still the same as it always has been. The question is which solution one should employ. The answer depends on knowing what the true need is. The power industry’s pressing need for the most economical ways to transfer bulk power along a desired path may be met by building new transmission lines, which is a long and costly process. Alternately, it may be quicker and cheaper to utilize the existing transmission lines more efficiently. The key is to identify the underutilized transmission lines and harness their dormant capacity to increase the power flows to the lines’ thermal limits. The presentation is designed to provide the basic principles of power flow control theory, an overview of the most commonly used power flow controllers, and future trends. The audience will hear from an expert who actually designed and commissioned a number of power electronics-based FACTS controllers since their inception in the 1990s Speaker(s): Kalyan K. Sen, PhD, PE, MBA, IEEE Fellow, Virtual: https://events.vtools.ieee.org/m/282280

SMART Power Flow Controllers – A Necessity for Future Power Grid

Virtual: https://events.vtools.ieee.org/m/282280

Power flow control techniques have been practiced, from using inductors, capacitors, transformers and load tap changers in the earlier days of electrical engineering to power electronics-based solutions in recent years. Even though the costs and complexities of the available solutions vary widely, the basic underlying theory of power flow control is still the same as it always has been. The question is which solution one should employ. The answer depends on knowing what the true need is. The power industry’s pressing need for the most economical ways to transfer bulk power along a desired path may be met by building new transmission lines, which is a long and costly process. Alternately, it may be quicker and cheaper to utilize the existing transmission lines more efficiently. The key is to identify the underutilized transmission lines and harness their dormant capacity to increase the power flows to the lines’ thermal limits. The presentation is designed to provide the basic principles of power flow control theory, an overview of the most commonly used power flow controllers, and future trends. The audience will hear from an expert who actually designed and commissioned a number of power electronics-based FACTS controllers since their inception in the 1990s Speaker(s): Kalyan K. Sen, PhD, PE, MBA, IEEE Fellow, Virtual: https://events.vtools.ieee.org/m/282280