2018 IEEE Custom Integrated Circuits Conference (CICC) 2018
DOI: 10.1109/cicc.2018.8357081
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Fully-integrated 57 mV cold start of a thermoelectric energy harvester using a cross-coupled complementary charge pump

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Cited by 15 publications
(20 citation statements)
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“…ROs composed of STs or inverters with the transistor gates connected to the substrates are good choices for the start‐up circuits of energy harvesters. In particular, the STB ROs described in this communication can reduce the minimum supply voltage by 5 to 6 mV in comparison with the stacked‐inverter RO described in [4]. This difference is important in the case of wearable electronics where the primary energy source is the human body since typical primary voltages supplied by thermoelectric generators are of the order of tens of mV.…”
Section: Resultsmentioning
confidence: 96%
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“…ROs composed of STs or inverters with the transistor gates connected to the substrates are good choices for the start‐up circuits of energy harvesters. In particular, the STB ROs described in this communication can reduce the minimum supply voltage by 5 to 6 mV in comparison with the stacked‐inverter RO described in [4]. This difference is important in the case of wearable electronics where the primary energy source is the human body since typical primary voltages supplied by thermoelectric generators are of the order of tens of mV.…”
Section: Resultsmentioning
confidence: 96%
“…On the other hand, ROs realised exclusively with transistors consume small amounts of silicon real estate, but their use with extremely low supply voltages is very difficult to achieve [2]. A recent paper [4] reported a VnormalDDmin value of 57 mV using stacked inverters. In this communication, simulations show that through both the use of Schmitt triggers (STs) as basic cells and the connection of the substrates to the gates, start‐up voltages of around 40 mV are feasible.…”
Section: Introductionmentioning
confidence: 99%
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“…Both the battery-less energy harvesting system [2][3][4][5][6][7][8][9][10][11][12] and the battery-assistance energy harvesting system [13,14] have been reported upon in the literature, as shown in Figure 1. For the battery-less energy harvesting system, as indicated in Figure 1a, the issue of battery replacement is fundamentally solved and all the energy consumed by loads is harvested from the surrounding environment.…”
Section: Introductionmentioning
confidence: 99%
“…The main issue for the battery-less energy harvesting system is the start-up period of the system, as the surrounding energy may not research over the past few years [2][3][4][5][6][7][8][9][10][11][12]. Several techniques have been reported to solve this issue, which can be divided into four categories: i.e., the mechanical method [2], the transformer-based method [3], the inductor-based method [4], and the fully integrated method [5][6][7][8][9][10][11][12]. Although the first three methods can realize an extremely low cold start voltage, usually below 50 mV, it is difficult to integrate the core devices with other circuits in one die.…”
Section: Introductionmentioning
confidence: 99%