Low‐voltage charge pump circuit with double boost technique

Uemi, Allex; Hino, Shota; Masui, Yoshihiro

doi:10.1002/eej.23281

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Moreover, the boost converter in EH systems can be fully integrated as a chip without the need of a coil. This is accomplished by the idea of the double boost converter [39].…”

Section: Description Of Heh Systemmentioning

confidence: 99%

Thermally reused solar energy harvesting using current mirror cells

et al. 2023

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This paper implements a simultaneous solar and thermal energy harvesting system, as a hybrid energy harvesting (HEH) system, to convert ambient light into electrical energy through photovoltaic (PV) cells and heat absorbed in the body of PV cells. Indeed, a solar panel equipped with serially connected thermoelectric generators not only converts the incoming light into electricity but also takes advantage of heat emanating from the light. In a conventional HEH system, the diode block is used to provide the path for the input source with the highest value. In this scheme, at each time, only one source can be handled to generate its output, while other sources are blocked. To handle this challenge of combining resources in HEH systems, this paper proposes a method for collecting all incoming energies and conveying its summation to the load via the current mirror cells in an approach similar to the maximum power point tracking. This technique is implemented using off‐the‐shelf components. The measurement results show that the proposed method is a realistic approach for supplying electrical energy to wireless sensor nodes and low‐power electronics.

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“…Moreover, the boost converter in EH systems can be fully integrated as a chip without the need of a coil. This is accomplished by the idea of the double boost converter [39].…”

Section: Description Of Heh Systemmentioning

confidence: 99%

Thermally reused solar energy harvesting using current mirror cells

et al. 2023

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A high‐PCE amalgamate charge pump topology with extended input voltage dynamic range for energy harvesting systems

Yong,

Zhou,

et al. 2024

Circuit Theory & Apps

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This paper presents a novel extended input voltage dynamic range (IVDR) amalgamate charge pump (CP) for energy harvesting systems. The proposed amalgamate CP adaptively switches its charge transfer transistor into switch and diode connection based on the input voltage, effectively enhancing the power conversion efficiency (PCE) over a wide input voltage range. Implemented in 65 nm CMOS technology, the post‐layout results demonstrate a PCE exceeding 40% within the input voltage range of 0.36–0.85 V, under 60 kΩ load. The design achieves an extended IVDR of 0.49 V with a peak PCE of 50.02% observed at an input voltage of 0.45 V. The proposed amalgamate CP design features two distinct charge transfer transistor connections, leveraging the strength of Dickson CP with low reversion loss in high input voltage range and the low conduction loss of cross‐coupled CP (CCCP) in low input voltage range, thereby extending the input voltage operation range of conventional CP.

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Low‐voltage charge pump circuit with double boost technique

Cited by 2 publications

References 6 publications

Thermally reused solar energy harvesting using current mirror cells

Thermally reused solar energy harvesting using current mirror cells

A high‐PCE amalgamate charge pump topology with extended input voltage dynamic range for energy harvesting systems

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