Adaptive voltage bias control system and integrated circuit

Abstract

The present disclosure provides an adaptive voltage bias control system and an integrated circuit. The integrated circuit includes a frequency detector coupled with a logic circuit; a supply voltage regulator coupled with the frequency detector and designed to provide an adaptive voltage supply to the logic circuit based on a frequency error from the frequency detector; and a substrate bias regulator coupled with the frequency detector and designed to provide an adaptive body bias voltage to the logic circuit based on the frequency error. The invention can effectively reduce the power consumption and has simple structure and lower manufacturing cost.

Description

technical field [0001] The present invention relates to integrated circuits and to adaptive voltage bias control systems. Background technique [0002] In the design and application of integrated circuits (Integrated circuit, IC), power consumption has always been a subject that has attracted much attention and is full of challenges. Various methods are used to reduce power consumption, for example, dual power supplies can be used in integrated circuits. In the existing technology, power reduction technology includes not only reducing active power (such as multiple voltage supply (Multiple Voltage Supply) technology), but also reducing leakage power (such as mixed threshold voltage (Mixed Vt) technology). In addition, circuit performance is more sensitive to process variations due to the small geometry of advanced processes. While these approaches are satisfactory in some respects, they are not satisfactory in all respects. For example, these prior art techniques may not...

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Problems solved by technology

In addition, circuit performance is more sensitive to process variations due to the small geometry of advanced processes

While these approaches are satisfactory in some respects, they are not satisfactory in all respects

For example, these existing techniques may not be effective in minimizing power consumption due to process variation

In order to reduce the overall power, two or more power reduction techniques are often required, which makes the design more complicated and significantly increases the manufacturing cost

In addition, the existing technology still lacks a unified method that can reduce power consumption while taking into account process variation

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