A parallel auto-adaptive topology for integrated energy harvesting system
| Autor: | Luis Antonio Carrillo-Martinez, Guillermo Espinosa Flores-Verdad, Victor R. Gonzalez-Diaz, Roberto Rafael Flores-Quintero |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
business.industry Computer science 020208 electrical & electronic engineering General Engineering Process (computing) Electrical engineering Topology (electrical circuits) Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology Integrated circuit 01 natural sciences law.invention CMOS Hardware_GENERAL law 0103 physical sciences Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering business Energy harvesting Energy (signal processing) Thermal energy Voltage |
| Zdroj: | Microelectronics Journal. 98:104736 |
| ISSN: | 0026-2692 |
| DOI: | 10.1016/j.mejo.2020.104736 |
| Popis: | This work presents a new topology for a thermal and RF energy harvesting system for integrated circuits. The system improves two circuit parameters: low start-up voltage and high-efficiency energy extraction. The high efficiency is achieved with a new parallel auto-adaptive DC-DC converter with a charge-pump based design to collect thermal energy. The low start-up voltage is possible with the assistance of a Radio-Frequency harvester circuit, resulting in a new hybrid energy harvesting architecture. The circuit was designed and fabricated with a CMOS 180 nm process, using an active area of 954 μm × 341 μm. The measurement results show an 87% peak efficiency with a maximum regulated output voltage of 2 V. The minimum operating input voltage is 250 mV without the start-up circuit and 30 mV with the RF start-up circuit at 33 KHz of switching frequency. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect