A 94% Peak Efficiency Dual Mode Buck Converter With Fully Integrated On-Time-Based Mode Control for Implantable Medical Devices

Park, Woojin; Namgoong, Gyeongho; Choi, Eun-Ho; Lee, Bonyoung; Park, Hyunjun; Ma, Hyunggun; Bien, Franklin

doi:10.1109/tcsii.2022.3194154

Cited by 8 publications

(1 citation statement)

References 13 publications

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“…Some of these boost converters use complex auxiliary start-up circuits [19], some resort to additional external devices [20,21], some have long start-up times [22], and some use special semiconductor processes, such as low-voltage processes [23] or negative-voltage processes [24], which undoubtedly increase the production cost of chip fabrication. Moreover, to improve the efficiency of boost converters, some dual-mode [25] or multi-mode [26,27] hybrid modulated boost converters have been proposed in recent years. However, these techniques are proposed to improve the efficiency of the boost converter during stable operation.…”

Section: Introductionmentioning

confidence: 99%

A High-Efficiency Synchronous Boost Converter with Near-Threshold Self-Start

Gan

2023

Electronics

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A high-efficiency synchronous boost converter with near-threshold self-starting is proposed. It adopts a novel phased start-up method to achieve self-start when the input voltage is below the threshold voltage of the MOS device and without external auxiliary measures. This boost converter is fabricated in a 0.18 um COMS process with a 1.24 × 0.78 um 2 chip area, and can achieve a reliable self-start when the input voltage is below the threshold voltage of 40 mV. It has an input voltage range of 0.7–5 V, a load current range of 0–300 mA, a stable output voltage of 5 V, and a maximum peak efficiency of 95.01%.

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