Name
Title | ||
|---|---|---|
An Ultrasound ASIC With Universal Energy Recycling for >7-m All-Weather Metamorphic Robotic Vision |
Abstract | ||
|---|---|---|
An ultrasound ASIC that enables compact, 3-D nonvisual robotic navigation for >7-m is presented. The proposed ultrasound ASIC mitigates the limitations of camera vision navigation systems in all-weather, low-power, low-cost aspects. The ASIC integrates TX and RX paths for 64 channels, enabling four-directional navigation using 4
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4 ultrasound arrays. The proposed universal energy recycling transmitter (UERTX) driver circuit, which can drive both single-ended and differential transducers, reduces energy consumption by 44% compared with non-overlap switching-assisted conventional class-D ultrasonic drivers, addressing large TX power consumption. In addition, the on- chip programmable power management unit (PMU) eliminates off-chip supplies and reduces off-chip passive components for compact system miniaturization. Furthermore, PMU enables the tuning of TX driving amplitude for the range of 6–14
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allowing wide detection range adaptability. Fabricated in 0.18
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1P6M standard CMOS, the ASIC system measures 25 mm
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and has >7-m obstacle detection capability while consuming 4.3 mW/channel. The proposed ultrasound ASIC system is demonstrated with a four fps, 3-D navigating metamorphic robot, which consumes 0.28 W, occupies 125 cm
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, and weighs ≤100 g. |
Year | DOI | Venue |
|---|---|---|
2022 | 10.1109/JSSC.2022.3182102 | IEEE Journal of Solid-State Circuits |
Keywords | DocType | Volume |
All-weather,energy recycling,low-power,machine vision,real-time,small form factor,ultrasound | Journal | 57 |
Issue | ISSN | Citations |
10 | 0018-9200 | 1 |
PageRank | References | Authors |
0.35 | 12 | 7 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Han Wu | 1 | 1 | 0.69 |
| Miaolin Zhang | 2 | 6 | 3.15 |
| Zhichun Shao | 3 | 1 | 0.35 |
| Jiaqi Guo | 4 | 1 | 0.69 |
| Kian Ann Ng | 5 | 1 | 0.35 |
| Liwei Lin | 6 | 122 | 28.76 |
| Jerald Yoo | 7 | 1 | 0.69 |