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An Efficient Reconfigurable RF-DC Converter with Wide Input Power Range for RF Energy Harvesting
2020
IEEE Access
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The proposed scheme employs a dual-path, a series (lowpower) path and a parallel (high-power) path, to maintain high power conversion efficiency (PCE) over wide input power range. ...
The measurement results show that PCE of the proposed circuit is above 20% from −18 dBm to −5 dBm, maintaining 13-dB input power range with peak PCE of 33% at −8 dBm for 200 k load resistance. ...
Fig. 4 (a) shows the series-path operation of the proposed circuit for low input power range. ...
doi:10.1109/access.2020.2990662
fatcat:uax5afci7zg6nfg6f2ejgf2tjm
Harvesting Wireless Power: Survey of Energy-Harvester Conversion Efficiency in Far-Field, Wireless Power Transfer Systems
2014
IEEE Microwave Magazine
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Figure 6 (a) demonstrates that a low turn-on threshold is required for efficient, low-power operation. ...
This low threshold allows for more efficient operation at low powers, and the low junction capacitance increases the maximum frequency at which the diode can operate. ...
doi:10.1109/mmm.2014.2309499
fatcat:tgsz5fq2bbad7b3ppnuooq6j3a
Piezoelectric vibration energy harvesting: A connection configuration scheme to increase operational range and output power
2016
Journal of Intelligent Materials Systems and Structures
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For a conventional monolithic piezoelectric transducer (PT) using a full-bridge rectifier, there is a threshold voltage that the open-circuit peak-to-peak voltage measured across the harvester must attain ...
The performance for different series stage numbers has been theoretically studied and experimentally validated. ...
Figure 10 shows the measured power efficiency for different series stages while the excitation level is swept from zero to V pp(open) = 12 V. ...
doi:10.1177/1045389x16682846
fatcat:5vhme72hrvdx5isiz3j3ghcegu
Connection Configurations to Increase Operational Range and Output Power of Piezoelectric MEMS Vibration Energy Harvesters
2016
Journal of Physics, Conference Series
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The power output from such a series connected MEMS PT allows for the generated voltage to readily overcome the threshold set by the FBR. ...
However, its efficiency and operational range are limited due to a threshold voltage that the open-circuit voltage generated from the piezoelectric transducer (PT) must attain prior to any energy extraction ...
, increasing the power efficiency. ...
doi:10.1088/1742-6596/773/1/012063
fatcat:p7e3s47eqrhz3gocjhjvsbe2bi
Design of a high-efficiency class DE tuned power oscillator
2000
IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications
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This paper presents a high-efficiency class DE tuned power oscillator, along with the analysis, design procedure, and experimental results. ...
It consists of a class DE inverter and a feedback-loop for phase matching and is especially applicable for high frequency performance because it minimizes the power dissipated when turning ON each MOSFET ...
ACKNOWLEDGMENT The authors would like to thank the reviewers for their valuable comments. ...
doi:10.1109/81.895333
fatcat:pwzjpmerfnefphytjhgimzjqva
Design of Micro Energy Pulse Power Supply for Multi Electrode Synchronous Micro-EDM
2018
IOP Conference Series: Materials Science and Engineering
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In order to solve the problem of low efficiency of micro-EDM, a micro energy pulse power supply for multi electrode synchronous micro-EDM was designed. ...
The Experimental tests show that the power supply can achieve efficient and stable EDM. ...
At present, the micro energy pulse power supply used in micro EDM is generally only suitable for single electrode discharge machining, and the machining efficiency of complex workpiece with multi micropore ...
doi:10.1088/1757-899x/452/3/032069
fatcat:iligei5dync5bpzfvpdc7nur3m
A Naval Energy Efficient Synthesis of Full Adder
2016
IOSR Journal of Electronics and Communication Engineering
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An adder is specified in terms of delay area and power. This paper suggests a possible method for reduction in power Software used for simulation of adder is Mentor graphics with 180 nm technology. ...
By comparing proposed adder with existing adders reduction in power delay product has been found. ...
These circuits are faster and consume less power hence energy efficient but the main problem with this technique is use of common clock which makes it slightly slower for multi level digital circuits ...
doi:10.9790/2834-150102831
fatcat:v57zv7vfffdhhgkilbuykg6v2i
A 2.45 GHz High Efficiency CMOS RF Energy Harvester with Adaptive Path Control
2020
Electronics
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The proposed circuit obtains more than 20% measured power conversion efficiency (PCE) from −6 dBm to 11 dBm input power range with maximum efficiencies of 41% and 45% at 1 and 6 dBm input powers, respectively ...
, for 5 kΩ load resistance. ...
Since the switches introduce power loss due to their series resistance, large and optimum sizes of the switches are set to be chosen for low series resistance to exhibit minimum conduction loss. ...
doi:10.3390/electronics9071107
fatcat:m6fengrupzcoti3iiq44uw5esi
High efficiency low power rectifier design using zero bias schottky diodes
2014
2014 IEEE Faible Tension Faible Consommation
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In this paper we present the design of high efficiency low power rectifier for microwave energy harvesting. ...
The circuit topology including parasitic elements and microstrip lines has been studied and optimized for high efficiency energy conversion dedicated to low input power operations (below -10dBm). ...
The experimental results validated the circuit high efficiency operation at low input power (below -10dBm). 21% RF-DC conversion efficiency is achieved at 850 MHz for -20dBm input power and 10KΩ resistor ...
doi:10.1109/ftfc.2014.6828604
fatcat:zjwmgoz6tvd7pnis5q7eyktu5a
Fully integrated ultra-low power management system for micro-power solar energy harvesting applications
2012
Electronics Letters
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A fully integrated, area-efficient and ultra-low power management system for micro-power solar energy harvesting applications is proposed. ...
Owing to very low power consumption of the circuit, efficiency remains high even under reduced light intensity. ...
Solar cells are connected in series to create a PV module with appropriate voltage level for the target battery. ...
doi:10.1049/el.2012.0315
fatcat:ohfuexdplvd7dn2sedp5zav4gq
Efficient design of rectifying antennas for low power detection
2011
2011 IEEE MTT-S International Microwave Symposium
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This article is dedicated to the design of rectifying antenna for wireless energy transfer at 2.45 GHz in the special case of low input power (typically <-10 dBm). ...
Different rectifying circuits have been studied and their performances have been evaluated through the definition of a Figure of Merit. ...
The single diode topologies are similar for power levels of around 30 µW, but the series mounted diode rectifier seems to have the highest RFoM for low input power levels (below -5 dBm). ...
doi:10.1109/mwsym.2011.5973270
fatcat:j7iu7ufynzgnzm624uofucjrfu
Efficient design of rectifying antennas for low power detection
2011
2011 IEEE MTT-S International Microwave Symposium
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This article is dedicated to the design of rectifying antenna for wireless energy transfer at 2.45 GHz in the special case of low input power (typically <-10 dBm). ...
Different rectifying circuits have been studied and their performances have been evaluated through the definition of a Figure of Merit. ...
The single diode topologies are similar for power levels of around 30 µW, but the series mounted diode rectifier seems to have the highest RFoM for low input power levels (below -5 dBm). ...
doi:10.1109/mwsym.2011.5972862
fatcat:ty37exmsu5e3xbf4lccdlngtou
Design of Efficient Complex Gate using 45nm Technology
2019
VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE
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Now-a-days Efficient Complex Gate using 45nm technology is preferable because of its delay and power. ...
Increasing of threshold voltage not only reduces delay but indirectly reduces leakage power consumption. ...
The advantage of this complex gates are they can be designed in very efficient manner based of powerful combinations of series and parallel connection of transistors [12] .
45Nm Technology In 45nm technology ...
doi:10.35940/ijitee.b7569.129219
fatcat:2547lmyd6vcvhhjbjxgiz2eux4
Using multi-threshold threshold gates in RTD-based logic design: A case study
2008
Microelectronics Journal
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The basic building blocks for Resonant Tunnelling Diode (RTD) logic circuits are Threshold Gates (TGs) instead of the conventional Boolean gates (AND, OR, NAND, NOR) due to the fact that, when designing ...
with RTDs, threshold gates can be implemented as efficiently as conventional ones, but realize more complex functions. ...
TGs are efficiently realized by resorting to the operation principle of the clocked series connection of a pair of RTDs (MOBILE). ...
doi:10.1016/j.mejo.2007.05.015
fatcat:vryivkkibfczpcpicqglwkcgzm
Efficient Far-Field Radio Frequency Energy Harvesting for Passively Powered Sensor Networks
2008
IEEE Journal of Solid-State Circuits
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Index Terms-Far field, floating gate, high efficiency, interface circuit, micro power, passively powered, power conversion, RF powered, rectifier, sensor network. ...
Optimized for far field, the circuit operates at a distance of 44 m from a 4 W EIRP source. ...
To overcome this power-threshold, the system requires significantly more efficient circuit and system level design [15] . ...
doi:10.1109/jssc.2008.920318
fatcat:27reokjlmngwbchl5spohkw63y
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