Atıf İçin Kopyala
Tabrizi H. O., Jayaweera H. M. P. C., Muhtaroglu A.
IEEE TRANSACTIONS ON POWER ELECTRONICS, cilt.35, sa.5, ss.4905-4914, 2020 (SCI-Expanded)
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Yayın Türü:
Makale / Tam Makale
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Cilt numarası:
35
Sayı:
5
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Basım Tarihi:
2020
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Doi Numarası:
10.1109/tpel.2019.2945913
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Dergi Adı:
IEEE TRANSACTIONS ON POWER ELECTRONICS
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Derginin Tarandığı İndeksler:
Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
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Sayfa Sayıları:
ss.4905-4914
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Anahtar Kelimeler:
Charge pumps, DC-DC power converters, Oscillators, Maximum power point trackers, Mathematical model, Integrated circuit modeling, Capacitors, Integrated < named-content xmlns:xlink="http:, www, w3, org, 1999, xlink" xmlns:ali="http:, www, niso, org, schemas, ali, 1, 0, " xmlns:mml="http:, www, w3, org, 1998, Math, MathML" xmlns:xsi="http:, www, w3, org, 2001, XMLSchema-instance" content-type="math" xlink:type="simple"> < inline-formula > < tex-math notation="LaTeX">$LC$<, tex-math > <, inline-formula > <, named-content >-tank oscillator, low-voltage dc, dc conversion, maximum power point tracking (MPPT), self-powered charge-pump, thermoelectric energy harvesting, wearable sensors, CHARGE-PUMP, OSCILLATOR, CONVERTER, STARTUP, MV
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Orta Doğu Teknik Üniversitesi Adresli:
Evet
Özet
In this article, a novel fully autonomous and integrated power management interface circuit is introduced for energy harvesting using thermoelectric generators (TEGs) to supply power to Internet of Thing nodes. The circuit consists of a self-starting dc & x2013;dc converter based on a dual-phase charge pump with LC-tank oscillator, a digital MPPT unit, and a 1-V LDO regulator. The novel maximum power point tracking (MPPT) algorithm avoids open-circuit state, and accommodates varying input power and ultra-low voltage conditions. Validation data from the fabricated test-chip in 180 & x00A0;nm standard CMOS technology indicates the circuit start-up voltage is as low as 170 mV. The maximum output power capacity is 0.5 mW, which is the highest noted in the literature for a fully integrated solution. The high output power at low cost is achieved with a peak system efficiency of 30 & x0025;. The relatively low efficiency is expected, since the focus of the design is high power capacity at low cost. The MPPT algorithm reaches 98 & x0025; maximum accuracy for a source output resistance of 40 & x2126;, which is typical for wearable TEG modules.