Under Voltage Lock-Out Design Rules for Proper Start-Up of Energy Autonomous Systems Powered by Supercapacitors

Boitier, Vincent; Estèbe, P. Durand; Monthéard, Romain; Bafleur, Marise; Dilhac, Jean‐Marie

doi:10.1088/1742-6596/476/1/012121

Cited by 7 publications

(9 citation statements)

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“…We carefully limited the thickness of the circuit, specifically that of the inductor. We used LT3539 shutdown pin to keep the output disabled and to allow the PV panel to first charge UC [6]. When the UC terminal voltage reaches 4 V (the higher the voltage across the UC, the better the LT3539 efficiency is), the LT3539 is turned on by a command from the microcontroller.…”

Section: Resultsmentioning

confidence: 99%

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Power Supply for a Wireless Sensor Network: Airliner Flight Test Case Study

Estebe¹,

Boitier²,

Bafleur³

et al. 2014

JEPE

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Abstract:In this paper, we present hands-on experience related to on-going implementation in aircraft of power supply for a wireless sensor network deployed for aerodynamic flight tests. This autonomous battery-free power supply is capturing, managing and storing primary energy from the environment, using solar light and PV (photovoltaic) cells. For practical purposes, it is also equipped with an auxiliary power input. The specifications are detailed, the general architecture is presented and justified, and test results are discussed.

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Section: Resultsmentioning

confidence: 99%

“… capable of autonomous start-up, with the help of solar cells alone, the storage unit being empty [6];…”

Section: General Architecturementioning

confidence: 99%

Power Supply for a Wireless Sensor Network: Airliner Flight Test Case Study

Estebe¹,

Boitier²,

Bafleur³

et al. 2014

JEPE

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“…The last stage of the energy management circuit is used to isolate the energy storage unit from the load until it reaches a sufficient voltage to properly feed that load. This function is necessary to avoid overrated current consumption caused by insufficient supply voltage, which may even cause startup failure [27]. It is also implemented with a hysteresis comparator, based on an even lower quiescent current IC (Texas Instruments TLV3691, IQ=75 nA) so as to further minimize power consumption.…”

Section: Undervoltage Lock Out (Uvlo)mentioning

confidence: 99%

Coupling Supercapacitors and Aeroacoustic Energy Harvesting for Autonomous Wireless Sensing in Aeronautics Applications

Monthéard

Bafleur

Boitier

et al. 2018

Energyo

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This paper reports for the first time the experimental demonstration of a wireless sensor node only powered by an aeroacoustic energy-harvesting device, meant to be installed on an aircraft outside skin. Aeroacoustic noise is generated on purpose to serve as a means of converting mechanical energy from high velocity airflow into electrical energy. Results related to the physical characterization of the energy conversion process are presented. The proposed aeroacoustic transducer prototype, consisting in a rectangular cavity fitted with a piezoelectric membrane, is shown to deliver up to 2 mW AC power under Mach 0.5 airflow. Optimized power management electronics has been designed to interface with the transducer, including a self-powered Synchronized Switch Harvesting on Inductor (SSHI) interface circuit and an efficient buck-boost DC/DC converter. The design of micropower auxiliary circuits adds functionality while preserving high efficiency. This circuit stores energy in supercapacitors and is able to deliver a net output DC power close to 1 mW. A fully autonomous system has been implemented and tested, successfully demonstrating aeroacoustic power generation by supplying a battery-free wireless datalogger in conditions representative of an actual flight.

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“…The typical environmental RF energy source is characterized by low capacity [23] and it causes the necessity to design an ultra efficient energy storage unit (ESU). The built-up module is consisted of two ultra efficient boost (step up) switching regulators (Silicon Labs TS3310), super-capacitor (Cellergy CLC03P025F12), ultra low ON-resistance load switch with controlled turn on with hysteresis (Texas Instruments TPS22934) The DC-DC boost converters provide conditioned voltage at switched output that completely isolates loads from the storage capacitor.…”

Section: Multiband Development Board Of Battery-less Autonomous Semi-mentioning

confidence: 99%

Development board of the autonomous semi-passive RFID transponder

Jankowski-Mihułowicz

Węglarski

Pitera

et al. 2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The idea of multiband development board designed to support and advance the technique of battery-less autonomous semi-passive RFID transponders is presented in the paper. The extra function of harvesting energy from the electromagnetic field of different radio communications systems, the ultra efficient power conditioner and the energy storage block are applied in the proposed construction. The facility of utilizing gathered energy is provided to support designers in developing applications of automatic object identification. Since the evaluation board is to work without a galvanic cell, the particular emphasis is put on the mechanisms that improve energy efficient operation of the whole electronic circuit. The construction principles and operation modes (charging, cold start, sleep with charging, sleep, measurement and cut-off) of the storage unit are described in depth in the paper. The preproduction batch of the demonstrators has been manufactured on automated assembly line at ELMAK Ltd. Company, according to the elaborated model. It confirms that the author's demonstrator of the battery-less autonomous semi-passive transponder can be reproduced on an industrial scale. On the basis of the preproduction series, the performance parameters of the final product have been estimated. The presented study should significantly contribute to the RFID technique therefore the authors set up the evaluation process of marketing research and product commercialization. fication of moving objects, e.g. in the public transport (AVI -automatic vehicle identification) [7]. So it can be concluded that the observed applicable potential of the RFID technology justifies the need to develop new designs of electronic transponders. New more sophisticated solutions of electronic tags will be a factor of innovative progress in the discussed scope of use. Transponder in RFID systemIn terms of hardware (Fig. 1), an RFID system consists of a read/write device (RWD), which includes a transmitter (TX) and a receiver (RX), its antenna and at least one electronic transponder that is intended for marking an object. Communication in this system (read/write data) is provided with one (single system) or with multiple transponders simultaneously (anti-collision system). The marked objects during the identification process may be placed in fixed points (static system) or may dynamically change their location (dynamic system). The interrogation zone (IZ) is the main parameter of the RFID system, because it determines the efficiency of a given automated process [5]. The size of the IZ strongly depends on the above mentioned arrangements of RWD and transponders.According to the main classification of the RFID systems it is possible to distinguish applications operating in the inductive or radiative coupling regime. In the first group, the carrier frequency f 0 is between 100 kHz and 135 kHz (typically 125 kHz) for the LF band or 13.56 MHz of the HF band whereas in the

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Under Voltage Lock-Out Design Rules for Proper Start-Up of Energy Autonomous Systems Powered by Supercapacitors

Cited by 7 publications

References 0 publications

Power Supply for a Wireless Sensor Network: Airliner Flight Test Case Study

Power Supply for a Wireless Sensor Network: Airliner Flight Test Case Study

Coupling Supercapacitors and Aeroacoustic Energy Harvesting for Autonomous Wireless Sensing in Aeronautics Applications

Development board of the autonomous semi-passive RFID transponder

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