250mV input boost converter for low power applications

Bertacchini, Alessandro; Scorcioni, S.; Cori, M.; Larcher, Luca; Pavan, Paolo

doi:10.1109/isie.2010.5637835

Cited by 14 publications

(7 citation statements)

References 9 publications

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“…Few authors have developed a boost converter for PEHS, but no one utilized optimization algorithms. The authors in [ 36 , 37 , 38 ] designed a boost converter to increase the output voltage for PEHS by varying the PI controller, power management circuit, and voltage regulator circuit, etc., without utilizing any optimization algorithm. In [ 36 ], the author designed a closed loop system, bridgeless boost rectifier utilizing a conventional PI controller with a 50 kHz switching frequency to increase the output voltage, and the model boosts 3.3 V DC with an input of 0.4 V AC.…”

Section: Resultsmentioning

confidence: 99%

“…The author in [ 37 ] designed a DC-DC converter with a power management circuit with a 3 MHz switching frequency to increase the output voltage, and the model boosts 1.2 V DC with an input of 0.12 V AC. The author in [ 38 ] designed a boost converter from micro-energy sources with a 170 kHz switching frequency to maximize the output voltage, and the model boosts 3.3 V DC with an input of 0.25–0.4 V AC. Therefore, in this study, a BSA-PI controller is utilized to increase the output voltage of the PEHS.…”

Section: Resultsmentioning

confidence: 99%

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A New Method for a Piezoelectric Energy Harvesting System Using a Backtracking Search Algorithm-Based PI Voltage Controller

Sarker

Mohamed

2016

Micromachines

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This paper presents a new method for a vibration-based piezoelectric energy harvesting system using a backtracking search algorithm (BSA)-based proportional-integral (PI) voltage controller. This technique eliminates the exhaustive conventional trial-and-error procedure for obtaining optimized parameter values of proportional gain (Kp), and integral gain (Ki) for PI voltage controllers. The generated estimate values of Kp and Ki are executed in the PI voltage controller that is developed through the BSA optimization technique. In this study, mean absolute error (MAE) is used as an objective function to minimize output error for a piezoelectric energy harvesting system (PEHS). The model for the PEHS is designed and analyzed using the BSA optimization technique. The BSA-based PI voltage controller of the PEHS produces a significant improvement in minimizing the output error of the converter and a robust, regulated pulse-width modulation (PWM) signal to convert a MOSFET switch, with the best response in terms of rise time and settling time under various load conditions.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

A New Method for a Piezoelectric Energy Harvesting System Using a Backtracking Search Algorithm-Based PI Voltage Controller

Sarker

Mohamed

2016

Micromachines

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“…Increasing the switching frequency leads to higher efficiency in the boost DC-DC converters, since this allows using smaller inductance with lower parasitic resistances, thus decreasing related power losses. At the same time, higher frequencies lead to a higher power consumption of comparator required to control MOSFET switches [7].…”

Section: Boost Converter Circuit Componentmentioning

confidence: 99%

“…The low rise and fall times allowing reducing power losses at MOSFET switch turn-on and turn-off and significantly improving the efficiency of the whole DC-DC boost converter [7]. Therefore, the NMOS switch must be designed to have low rise and fall times which in this simulated design circuit have the optimum value of 1 % or a maximum 22 V output voltages.…”

Section: B Effect Of Rise and Fall Time Variationsmentioning

confidence: 99%

“…This made this type of architecture desires more space than the normal system. Research in [7] is integrating the differential oscillator to avoid using charge pump by using cross-coupled pair circuit topology, but in [7] it is observed that it still using the classic al Dickinson's charge pump as its voltage clamp in its intermediate DC-DC boost stage, this however sacrifices the overall circuit area as two boost converters are needed to boost the low input voltage. Due to the low input voltage and the requirements to step up the output voltage through numbers of stages, the threshold voltage of switch transistor has also increased, this in turns reduced the comparator efficiency [8].…”

Section: Introductionmentioning

confidence: 99%

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Parametric analysis for designing low voltage and low frequency energy harvester booster

Mustapha

Alam

Khan

et al. 2013

RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics

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This work presents an ultra-low voltage DC-DC boost converter vibration-based energy harvesting. A switching gate controlled concept is used which is well suited for low vibration-based frequency and voltage applications. The 0.1 -0.5 V input voltage range is linearly increased with the increase of output voltage range, 4 -22 V. The transient analysis is simulated to verify the optimum value of the inductive resistance, switching rise and fall times circuit under test. The 10 k load circuit is using 160 μH inductor and 10 μF load capacitor. This voltage converter is suitable for energy harvesting applications in automotive, buried electronic devices for broadband frequency range from 1 kHz to 10 kHz.

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Discrete, matched‐load, step‐up converter for 60–400 mV thermoelectric energy harvesting source

Shuttleworth¹,

Simpson

2013

Electron. lett.

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A circuit is described that enables the output of a thermoelectric generator (TEG) to be boosted to around 5V over a TEG open circuit voltage range of 60 to 400mV. The topology has a JFET and MOSFET start-up system which operates sequentially to charge a reservoir capacitor. When the capacitor is charged, the topology is converted to a discontinuous current mode flyback circuit which uses a BUZ11 MOSFET as the switch. The flyback circuit matches the converter input resistance to the TEG output resistance, thereby obtaining maximum power from the TEG. The circuit uses easily obtainable discrete components.

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250mV input boost converter for low power applications

Cited by 14 publications

References 9 publications

A New Method for a Piezoelectric Energy Harvesting System Using a Backtracking Search Algorithm-Based PI Voltage Controller

A New Method for a Piezoelectric Energy Harvesting System Using a Backtracking Search Algorithm-Based PI Voltage Controller

Parametric analysis for designing low voltage and low frequency energy harvester booster

Discrete, matched‐load, step‐up converter for 60–400 mV thermoelectric energy harvesting source

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