Using DTVS Technique for Microprocessor’s Power and Thermal Management

Abstract

In the design of modern processors, power and thermal management have become prominent issues of portable computer systems. Dynamic threshold voltage scaling (DTVS) is an effective lowpower design technique for reducing the dissipated power. The technique adjusts the body bias voltage (VBB) and, correspondingly, the threshold voltage (Vth) adaptively. This paper presents a tuning loop design for regulating VBB as well as Vth of transistors, which consistently allows compact efficient thermal and low power consumption of high-speed processors. SPICE simulations LTspice-XVII and ORCAD 17.2 are used to evaluate the presented theoretical basics and fundamentals. Results show that significant amount of power consumption reduction as well as temperature reduction challenges have been obtained for different workload environments.

Keywords

• power consumption
• thermal reduction
• DTVS Technique
• body bias