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Design and analysis of on-chip charge pumps for micro-power energy harvesting applications

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4 Author(s)
Wing-Hung Ki ; Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, China ; Yan Lu ; Feng Su ; Chi-Ying Tsui

Charge balance law based on conservation of charge is stated and employed to analyze charge pumps. For micro-power on-chip implementations, both the positive-plate and the negative-plate parasitic capacitors have to be considered. A first iteration approximation analysis is proposed to analyze charge pumps with parasitic capacitors. Using a 0.35μm CMOS process, 8X linear, Fibonacci and exponential charge pumps are designed and their performances are compared and confirmed by simulations.

Published in:

2011 IEEE/IFIP 19th International Conference on VLSI and System-on-Chip

Date of Conference:

3-5 Oct. 2011