A multi-input, multi-output power management unit using dickson charge pump for energy harvesting applications

This paper presents a multi-input, multi-output, frequency modulated Dickson charge pump targeting power management unit in energy harvesting applications. Four stages Dickson charge pump is designed and simulated using 65nm CMOS. The design has an input voltage range from 0.4V-0.6V and generates a regulated output voltage of 0.6V, 0.8V and 1V using pulse frequency modulation (PFM). SPICE simulations show that a maximum end-to-end efficiency of 33% at 200 μW at an input of 0.6V is achieved. The proposed charge pump supports a current range from 1uA to 200μA with a maximum operating frequency of 2.4 MHz. The proposed design could help in reducing the complexity of power management unit in energy harvesting applications.

[1]  D. Cabello,et al.  The dickson charge pump as voltage booster for light energy harvesting on CMOS vision chips , 2014, 2014 14th International Workshop on Cellular Nanoscale Networks and their Applications (CNNA).

[2]  Jichai Jeong,et al.  Design of a capacitor cross-coupled dual-band LNA with switched current-reuse technique , 2014 .

[3]  R. Miftakhutdinov,et al.  Analysis and optimization of synchronous buck converter at high slew-rate load current transients , 2000, 2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018).

[4]  Mohamad Sawan,et al.  Fully-integrated 86 mV–1V step-up converter for energy harvesting applications , 2014, 2014 IEEE 12th International New Circuits and Systems Conference (NEWCAS).

[5]  Guido Torelli,et al.  Theoretical and experimental analysis of Dickson charge pump output resistance , 2006, 2006 IEEE International Symposium on Circuits and Systems.

[6]  Dong-Wook Lee,et al.  23.1 20nm high-K metal-gate heterogeneous 64b quad-core CPUs and hexa-core GPU for high-performance and energy-efficient mobile application processor , 2015, 2015 IEEE International Solid-State Circuits Conference - (ISSCC) Digest of Technical Papers.

[7]  Edgar Sánchez-Sinencio,et al.  Ultra-low-voltage power management unit for thermal energy harvesting applications , 2012, 10th IEEE International NEWCAS Conference.

[8]  Stephen R. Forrest,et al.  The Limits to Organic Photovoltaic Cell Efficiency , 2005 .

[9]  Gyu-Hyeong Cho,et al.  A 40mV transformer-reuse self-startup boost converter with MPPT control for thermoelectric energy harvesting , 2012, 2012 IEEE International Solid-State Circuits Conference.

[10]  Milan M. Jovanovic,et al.  Design considerations for low-voltage on-board DC/DC modules for next generations of data processing circuits , 1996 .

[11]  J. F. Dickson,et al.  On-chip high-voltage generation in MNOS integrated circuits using an improved voltage multiplier technique , 1976 .

[12]  Kai Strunz,et al.  A 20 mV Input Boost Converter With Efficient Digital Control for Thermoelectric Energy Harvesting , 2010, IEEE Journal of Solid-State Circuits.

[13]  Chris Van Hoof,et al.  Capacitive Power Management Circuit for Micropower Thermoelectric Generators With a 1.4 $\mu$A Controller , 2009, IEEE Journal of Solid-State Circuits.

[14]  Anantha Chandrakasan,et al.  A Battery-Less Thermoelectric Energy Harvesting Interface Circuit With 35 mV Startup Voltage , 2010, IEEE Journal of Solid-State Circuits.

[15]  Massoud Pedram,et al.  Power optimization and management in embedded systems , 2001, Proceedings of the ASP-DAC 2001. Asia and South Pacific Design Automation Conference 2001 (Cat. No.01EX455).

[16]  Mohammed Ismail,et al.  An Efficient Zero Current Switching Control for L-Based DC–DC Converters in TEG Applications , 2017, IEEE Transactions on Circuits and Systems II: Express Briefs.