Journal of Xidian University ›› 2020, Vol. 47 ›› Issue (4): 124-131.doi: 10.19665/j.issn1001-2400.2020.04.017

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Optimization of the voltage regulators and voltage noise for the power delivery network

WANG Lu1,2,3(),WANG Leilei1,2,3   

  1. 1. School of Information Science and Technology, Shanghai Technology University, Shanghai 201210, China
    2. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
    3. School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-12-24 Online:2020-08-20 Published:2020-08-14


In order to reduce both the power loss of the switched capacitor converter integrated in the on-chip power delivery network and the voltage noise at the load, this paper proposes an optimization method to optimize the capacitance allocation between the flying capacitors of the switched-capacitor converter (SCCs) and the decoupling capacitors at the load. By formulating and solving the inequality-constrained nonlinear programming problem, the SCCs’ flying capacitance and decoupling capacitance can be optimally allocated and the sum of power loss and voltage noise is effectively reduced. Experimental results show that the joint optimization of the SCCs’ capacitance and decoupling capacitance can reduce the sum of power loss and voltage noise by about 11%~28%. For larger power deliver networks, this method can efficiently reduce the power loss and voltage noise.

Key words: power delivery network, voltage regulation, voltage noise, decoupling capacitor, nonlinear programming

CLC Number: 

  • TN47