Design of High‐Sensitivity Cold‐Start Circuit for Wireless Energy Harvesting With Low Start‐Up Voltage
ABSTRACT A high‐sensitivity and low start‐up voltage cold‐start circuit for wireless power harvesting is presented in this work. To improve conversion efficiency and reduce charge pump stages, a pipeline power supply uplifting clocking (PPSUC) driving scheme is proposed, which improves the conversion efficiency more than 45%. By adopting a two‐stage PPSUC driving Pelliconi charge pump, the proposed cold‐start circuit is designed and verified in a commercial 65‐nm MCOS process. Benefiting from the proposed PPSUC driving scheme, the cold‐start circuit demonstrates a low start‐up voltage of 170 mV and a high cold stat sensitivity of −32 dBm.
Authors
- Yongqian Du (ORCID: https://orcid.org/0000-0002-3028-2833)
- F. Shi (ORCID: https://orcid.org/0000-0002-7491-5188)
- Xiaochao Li (ORCID: https://orcid.org/0000-0001-7469-7064)
- Yang Chen (ORCID: https://orcid.org/0000-0002-9772-8692)
- Fang Wang (ORCID: https://orcid.org/0000-0001-7729-5669)
Institutions
- Northwestern Polytechnical University (CN)
- Xiamen University (CN)
- Xiamen University of Technology (CN)
Publication Details
- Journal
- International Journal of Circuit Theory and Applications
- Published
- 2024-11-24
- DOI
- https://doi.org/10.1002/cta.4372
- Citations
- 1
- Primary Topic
- Innovative Energy Harvesting Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.21
Funders
- National Natural Science Foundation of China
- Natural Science Basic Research Program of Shaanxi Province
- Shenzhen Science and Technology Innovation Program