A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting
Thermal energy harvesting systems use boost converters for high-efficiency low voltage operation, but lack the ability for low voltage startup without off-chip transformers. We present a cold start system that uses integrated magnetics instead of external transformers in a Meissner Oscillator to sta...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
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IEEE
2020
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| Online Access: | https://hdl.handle.net/1721.1/125116 |
| _version_ | 1811077124316987392 |
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| author | Garcha, Preetinder Kaur El-Damak, Dina Desai, Nachiket Troncoso, Jorge Mazotti, Erika Mullenix, Joyce Tang, Shaoping Trombley, Django Bluss, Dennis Lang, Jeffrey H Chandrakasan, Anantha P |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Garcha, Preetinder Kaur El-Damak, Dina Desai, Nachiket Troncoso, Jorge Mazotti, Erika Mullenix, Joyce Tang, Shaoping Trombley, Django Bluss, Dennis Lang, Jeffrey H Chandrakasan, Anantha P |
| author_sort | Garcha, Preetinder Kaur |
| collection | MIT |
| description | Thermal energy harvesting systems use boost converters for high-efficiency low voltage operation, but lack the ability for low voltage startup without off-chip transformers. We present a cold start system that uses integrated magnetics instead of external transformers in a Meissner Oscillator to start up from ultra low voltages, with a switched capacitor DC-DC circuit for additional voltage gain. The oscillator analysis with on-chip magnetics allows device co-optimization for low voltage operation, despite 1000x lower inductance values than off-chip transformers. Co-optimized on-chip transformer and depletion-mode NMOS start up from 25 mV driven directly by a sourcemeter, or 50 mV with a 4.7 Ω series resistance, for the lowest integrated electrical startup. The co-packaged system provides proof of concept for integration with boost converter circuits on a single die to have a fully-integrated low voltage startup solution for thermal energy harvesting applications, without using off-chip transformers. |
| first_indexed | 2024-09-23T10:38:16Z |
| format | Article |
| id | mit-1721.1/125116 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:38:16Z |
| publishDate | 2020 |
| publisher | IEEE |
| record_format | dspace |
| spelling | mit-1721.1/1251162022-09-30T21:58:00Z A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting Garcha, Preetinder Kaur El-Damak, Dina Desai, Nachiket Troncoso, Jorge Mazotti, Erika Mullenix, Joyce Tang, Shaoping Trombley, Django Bluss, Dennis Lang, Jeffrey H Chandrakasan, Anantha P Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Thermal energy harvesting systems use boost converters for high-efficiency low voltage operation, but lack the ability for low voltage startup without off-chip transformers. We present a cold start system that uses integrated magnetics instead of external transformers in a Meissner Oscillator to start up from ultra low voltages, with a switched capacitor DC-DC circuit for additional voltage gain. The oscillator analysis with on-chip magnetics allows device co-optimization for low voltage operation, despite 1000x lower inductance values than off-chip transformers. Co-optimized on-chip transformer and depletion-mode NMOS start up from 25 mV driven directly by a sourcemeter, or 50 mV with a 4.7 Ω series resistance, for the lowest integrated electrical startup. The co-packaged system provides proof of concept for integration with boost converter circuits on a single die to have a fully-integrated low voltage startup solution for thermal energy harvesting applications, without using off-chip transformers. 2020-05-07T18:38:55Z 2020-05-07T18:38:55Z 2017-09 Article http://purl.org/eprint/type/ConferencePaper 9781509050253 https://hdl.handle.net/1721.1/125116 Garcha, Preet, et al. "A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting." 43rd IEEE European Solid State Circuits Conference, September 2017, Leuven, Belgium, IEEE http://dx.doi.org/10.1109/esscirc.2017.8094542 43rd IEEE European Solid State Circuits Conference Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf IEEE Prof. Chandrakasan |
| spellingShingle | Garcha, Preetinder Kaur El-Damak, Dina Desai, Nachiket Troncoso, Jorge Mazotti, Erika Mullenix, Joyce Tang, Shaoping Trombley, Django Bluss, Dennis Lang, Jeffrey H Chandrakasan, Anantha P A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting |
| title | A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting |
| title_full | A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting |
| title_fullStr | A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting |
| title_full_unstemmed | A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting |
| title_short | A 25 mV-startup cold start system with on-chip magnetics for thermal energy harvesting |
| title_sort | 25 mv startup cold start system with on chip magnetics for thermal energy harvesting |
| url | https://hdl.handle.net/1721.1/125116 |
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