Proceedings ArticleDOI
Charge redistribution loss consideration in optimal charge pump design
Wing-Hung Ki,Feng Su,Chi-Ying Tsui +2 more
- pp 1895-1898
TLDR
The charge redistribution loss of capacitors is reviewed, and then employed in the optimal capacitor assignment of charge pumps, and the average output voltage is unambiguously defined.Abstract:
The charge redistribution loss of capacitors is reviewed, and then employed in the optimal capacitor assignment of charge pumps. The average output voltage is unambiguously defined, and efficiency due to redistribution loss is discussed. Analyses are confirmed by Hspice simulations on charge pumps designed using a 0.35 /spl mu/m CMOS process.read more
Citations
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Journal ArticleDOI
Analysis and Design Strategy of UHF Micro-Power CMOS Rectifiers for Micro-Sensor and RFID Applications
TL;DR: A superposition method is proposed to optimize the performance of multiple-output rectifiers and Constant-power scaling and area-efficient design are discussed.
Journal ArticleDOI
A Fully-Integrated 3-Level DC-DC Converter for Nanosecond-Scale DVFS
TL;DR: A fully integrated 3-level DC-DC converter, a hybrid of buck and switched-capacitor converters, implemented in 130 nm CMOS technology is presented, which enables smaller inductors than a buck, while generating a wide range of output voltages compared to a 1/2 mode switched-Capacitor converter.
Journal ArticleDOI
A Highly Efficient Reconfigurable Charge Pump Energy Harvester With Wide Harvesting Range and Two-Dimensional MPPT for Internet of Things
TL;DR: A monolithic microwatt-level charge pump energy harvester for smart nodes of Internet of Things (IOT) networks was optimized by the proposed architecture and circuit level innovations and achieved a flattened and improved PCE as high as 89% for ultra-low power operation capability below 50 μW.
Journal ArticleDOI
On Energy Efficiency of Switched-Capacitor Converters
TL;DR: In this paper, the authors address the energy efficiency issue of switched-capacitor converters by dividing the analysis of the entire efficiency problem into two parts, and propose some design rules useful for developing high-efficiency switch-capACC converters.
Proceedings ArticleDOI
Gate control strategies for high efficiency charge pumps
TL;DR: Optimal topologies attain better efficiency when compared to existing designs, as confirmed by simulation and measurement results of charge pumps designed using a 0.35 /spl mu/m CMOS n-well process.
References
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On-chip high-voltage generation in MNOS integrated circuits using an improved voltage multiplier technique
TL;DR: An improved voltage multiplier technique has been developed for generating +40 V internally in p-channel MNOS integrated circuits to enable them to be operated from standard +5- and -12-V supply rails.
Journal ArticleDOI
Charge-pump circuits: power-consumption optimization
TL;DR: In this article, an optimized strategy for designing charge pumps with minimum power consumption is presented, which allows designers to define the number of stages that, for a given input, and an output voltage, maximize power efficiency.
Journal ArticleDOI
On lossless switched-capacitor power converters
TL;DR: In this paper, the authors proposed a simple lossless topology for AC/DC power conversion, which achieves isolation between the source and the load, and demonstrated an improved efficiency over other existing switched-capacitor power converters.
Patent
Offset compensated switched capacitor circuits
Gabor C. Temes,Kenneth W. Martin +1 more
TL;DR: In this article, a switched capacitor type amplifier system including an operational amplifier is provided with compensating capacitive coupling during the non-sampling portion of the cycle from the output of the operational amplifier to its input, to avoid output discontinuities, and to provide compensation for the offset voltage of the amplifier.
Proceedings ArticleDOI
Analysis of charge pumps using charge balance
Wei-Chung Wu,R.M. Bass +1 more
TL;DR: In this article, a simple, generalized method for steady-state analysis of charge pumps or switched-capacitor power supplies, which is intuitive yet accurate, is presented. The significance of the equations for analyzing charge pumps is also discussed.