MISIMO: A Multi-Input Single-Inductor Multi-Output Energy Harvesting Platform in 28-nm FDSOI for Powering Net-Zero-Energy Systems

Amin, Sally Safwat; Mercier, Patrick P.

doi:10.1109/jssc.2018.2865467

Cited by 84 publications

(39 citation statements)

References 20 publications

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“…Several maximum power point tracking (MPPT) techniques have been proposed in the literature [31]- [34]. For a majority of energy harvesting applications (e.g., photovoltaics, triboelectric and biofuel harvesting), the maximum power point (MPP) occurs (i.e., the converter equivalent input impedance matches with the source impedance) when the converter input voltage is kept at a fixed and pre-determined fraction of its open circuit voltage (OCV).…”

Section: Dual-mode Buck-boost Converter (Dm-bbc)mentioning

confidence: 99%

“…In comparison with the state-of-the-art power transmission [8], [32] and harvesting [16], [34], [41] systems for wearable applications, this is the first work to utilize the body-coupling mechanism for full-range body area power transmission and harvesting (TABLE I). The harvesting scheme scavenges lowfrequency EM waves, which could not be achieved by antennabased RF harvesting due to the infeasible antenna sizing.…”

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confidence: 99%

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Body-Area Powering With Human Body-Coupled Power Transmission and Energy Harvesting ICs

Dong

Park

et al. 2020

IEEE Trans. Biomed. Circuits Syst.

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This paper presents the body-coupled power transmission and ambient energy harvesting ICs. The ICs utilize human body-coupling to deliver power to the entire body, and at the same time, harvest energy from ambient EM waves coupling through the body. The IC improves the recovered power level by adapting to the varying skin-electrode interface parasitic impedance at both the TX and RX. To maximize the power output from the TX, the dynamic impedance matching is performed amidst environment-induced variations. At the RX, the Detuned Impedance Booster (DIB) and the Bulk Adaptation Rectifier (BAR) are proposed to improve the power recovery and extend the power coverage further. In order to ensure the maximum power extraction despite the loading variations, the Dual-Mode Buck-Boost Converter (DM-BBC) is proposed. The ICs fabricated in 40 nm 1P8M CMOS recovers up to 100 μW from the body-coupled power transmission and 2.5 μW from the ambient body-coupled energy harvesting. The ICs achieve the full-body area power delivery, with the power harvested from the ambiance via the body-coupling mechanism independent of placements on the body. Both approaches show power sustainability for wearable electronics all around the human body. Index Terms-Body area network, body-coupled power transmission, body-coupled energy harvesting, energy harvesting, power transfer, impedance matching, rectifier, maximum power point tracking. I. INTRODUCTION OWERING wearable electronics such as earbuds, smart bandaids, and electrocardiography (ECG) sensors are challenging [1]-[3]. The limited battery lifetime incurs charging overhead, causes service disruptions, and inconveniences the users [4][5], which is aggravated further as the number of wearables increases. To address the issue and allow for sustainable operations, power transmission, and energy harvesting approaches have been proposed. Near-field power transmission approaches using the inductive link impose stringent requirements on the alignment Manuscript received DD-MMM-YYYY.

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Section: Dual-mode Buck-boost Converter (Dm-bbc)mentioning

confidence: 99%

mentioning

confidence: 99%

Body-Area Powering With Human Body-Coupled Power Transmission and Energy Harvesting ICs

Dong

Park

et al. 2020

IEEE Trans. Biomed. Circuits Syst.

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“…In addition, multiple ambient energy sources with the battery can provide power to multiple loads. 10 The role of the battery either ways (being either input or output) in these works was aforementioned. However, several issues surrounding the use of batteries such as difficulties during replacement, the limited energy capacity, large size (i.e., volume issue), and safety concerns related to implantable devices are discussed in Umaz.…”

Section: Introductionmentioning

confidence: 99%

SIDO: A single‐input double‐output energy harvesting architecture operating in burst mode with 74.87% peak end‐to‐end efficiency

Umaz

2021

Circuit Theory & Apps

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A single-input double-output (SIDO) energy harvesting architecture implemented with the off-the-shelf components is presented in this paper. The proposed SIDO consists of a step-up converter, a supercapacitor, an output routing control circuit (ORCC), and two output power switches for two loads. Once the supercapacitor charges to a maximum voltage level of nearly 3.7 V, output power switches are successively turned on by the ORCC for a short period of time (i.e., burst mode). The proposed SIDO supports output total power range from 2.694 to 196.76 mW which is in the range of 1.684 to 122.975 times greater than the maximum power available from the ambient energy source (e.g., 1.6 mW) due to the burst mode. Also, the proposed SIDO achieves a peak end-to-end efficiency of 74.87% with the self-starting, that is, no need of batteries other than the ambient energy source. As compared with prior work, the proposed SIDO supports the heaviest loads (e.g., total power of 196.76 mW) and achieves a wide support range with the burst mode operation and starts the operation from the lowest input voltage without the need of the external power source.

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“…Several power converters have been studied for energy harvesting systems to generate a stable system supply voltage from harvesters or storage devices [8]- [11]. However, they have often suffered from reliability problems caused by unstable supply voltage due to the harvested energy sensitive to the surroundings, or caused by insufficient protection for storage device due to the reverse leakage current.…”

Section: Introductionmentioning

confidence: 99%

“…The power converters in [8]- [9] employ the start-up circuit and power-on-reset (POR) to provide a stable system supply voltage. In [8], the storage device itself is used as a system supply voltage, but its voltage range is limited to between 1 V and 1.8 V for safe operation of the power converter. A cold start circuit is employed in [9] to generate a system supply voltage, but its POR is heavily affected by the leakage current.…”

Section: Introductionmentioning

confidence: 99%

A Highly Reliable SIMO Converter Using Hybrid Starter and Overcharging Protector for Energy Harvesting Systems

Jung

Hong

Kwon³

2020

IEEE Access

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This paper proposes a highly reliable single-inductor multi-output (SIMO) converter for energy harvesting systems, which is controlled by the power management controller (PMC) including the hybrid starter, overcharging protector (OCP), and switch controller (SWC). The proposed hybrid starter employs the power-on-reset to accurately control the activated and deactivated moments of the SWC, thus generating a system supply voltage (VSYS) within the stable operating voltage range. The proposed OCP employs the diode-connection and Schmitt trigger schemes to monitor the voltage of a storage device (VSTG) in real time, thereby protecting the IC from being damaged without using either a capacitor or Zener diode, which causes the additional area or reverse leakage current, respectively. The proposed SIMO converter with the PMC was fabricated using 0.18-µm CMOS process. The measurement results show that VSYS values at the activated and deactivated moments of the SWC are 1.798 V and 1.510 V, respectively, both of which are within the stable system voltage range for 1.8 V devices. In addition, the measured maximum VSTG is 5.892 V, which is much lower than an absolute maximum rated voltage of 9.2 V for 5 V devices. Furthermore, the measurement results reveal that the hybrid starter allows the proposed SIMO converter to be properly restarted immediately after VSYS is shorted to ground, while the OCP safely protects the SIMO converter even when the storage device is removed from the IC while charging. Therefore, the proposed SIMO converter with the PMC is suitable for energy harvesting systems that require high reliability. INDEX TERMS Energy harvesting, overcharging protection, SIMO converter, cold start, power-on-reset.

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MISIMO: A Multi-Input Single-Inductor Multi-Output Energy Harvesting Platform in 28-nm FDSOI for Powering Net-Zero-Energy Systems

Cited by 84 publications

References 20 publications

Body-Area Powering With Human Body-Coupled Power Transmission and Energy Harvesting ICs

Body-Area Powering With Human Body-Coupled Power Transmission and Energy Harvesting ICs

SIDO: A single‐input double‐output energy harvesting architecture operating in burst mode with 74.87% peak end‐to‐end efficiency

A Highly Reliable SIMO Converter Using Hybrid Starter and Overcharging Protector for Energy Harvesting Systems

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