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该论文提出了一种基于电荷注入的有源去耦技术，用于抑制电感引起的电源噪声。通过主动调节电源电压来应对负载电流的突然变化，解决了传统无源去耦电容面积和漏电功耗大的问题。
Aggressive scaling and increasing clock frequency have exacerbated inductive (Ldi/dt) supply noise, decreasing the robustness of power delivery networks. Ldi/dt is further aggravated by commonly used power-reduction techniques such as power/clock-gating and frequency stepping in DVS systems. On-die passive decoupling capacitance (decap), which has traditionally been used for suppressing Ldi/dt noise, has become expensive due to its area and leakage power consumption overhead. As a result, several circuits [1-3] have been reported that actively regulate the supply against sudden surges in load current. However, these techniques deliver only limited charge [1], are suited only for resonance damping [2] or require an additional high-voltage supply [3]. Recently, adaptive frequency-management techniques [4,5] for compensating supply current transients have also been reported. We demonstrate an active circuit to detect and suppress excessive
Sanjay Pant, David Blaauw
University of Michigan, Ann Arbor, MI