An Efficiency-Enhanced Integrated CMOS Rectifier with Comparator-Controlled Switches for Transcutaneous Powered Implants
In: 2007 IEEE Custom Integrated Circuits Conference, 2007-09-01
Online
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Zugriff:
This paper presents a high-efficient rectifier for high-current transcutaneous power transmission in biomedical implants. By using comparators to control power nMOS transistors functioning as switches with unidirectional current flow, the rectifier dropout voltage is decreased to improve the power efficiency. The unbalanced biasing scheme in the comparator also minimizes the reverse leakage current. Implemented in a standard 0.35 mum CMOS, the rectifier operates at 1.5 MHz, achieves the peak conversion ratio of 95% and can deliver up to 20 mA output current.
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An Efficiency-Enhanced Integrated CMOS Rectifier with Comparator-Controlled Switches for Transcutaneous Powered Implants
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Autor/in / Beteiligte Person: | Guo, Song ; Lee, Hoi |
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Zeitschrift: | 2007 IEEE Custom Integrated Circuits Conference, 2007-09-01 |
Veröffentlichung: | IEEE, 2007 |
Medientyp: | unknown |
DOI: | 10.1109/cicc.2007.4405758 |
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