A Low-Cost CMOS Programmable Temperature Switch
A novel uncalibrated CMOS programmable temperature switch with high temperature accuracy is presented. Its threshold temperature Tth can be programmed by adjusting the ratios of width and length of the transistors. The operating principles of the temperature switch circuit is theoretically explained...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2008-05-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/8/5/3150/ |
| _version_ | 1828364245837807616 |
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| author | Nanjian Wu Yunlong Li |
| author_facet | Nanjian Wu Yunlong Li |
| author_sort | Nanjian Wu |
| collection | DOAJ |
| description | A novel uncalibrated CMOS programmable temperature switch with high temperature accuracy is presented. Its threshold temperature Tth can be programmed by adjusting the ratios of width and length of the transistors. The operating principles of the temperature switch circuit is theoretically explained. A floating gate neural MOS circuit is designed to compensate automatically the threshold temperature Tth variation that results form the process tolerance. The switch circuit is implemented in a standard 0.35 μm CMOS process. The temperature switch can be programmed to perform the switch operation at 16 different threshold temperature Tths from 45ï¼Â120°C with a 5°C increment. The measurement shows a good consistency in the threshold temperatures. The chip core area is 0.04 mm2 and power consumption is 3.1 μA at 3.3V power supply. The advantages of the temperature switch are low power consumption, the programmable threshold temperature and the controllable hysteresis. |
| first_indexed | 2024-04-14T05:13:31Z |
| format | Article |
| id | doaj.art-51fede18697a45fdbdfc5e0f300d3e9e |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T05:13:31Z |
| publishDate | 2008-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-51fede18697a45fdbdfc5e0f300d3e9e2022-12-22T02:10:28ZengMDPI AGSensors1424-82202008-05-018531503164A Low-Cost CMOS Programmable Temperature SwitchNanjian WuYunlong LiA novel uncalibrated CMOS programmable temperature switch with high temperature accuracy is presented. Its threshold temperature Tth can be programmed by adjusting the ratios of width and length of the transistors. The operating principles of the temperature switch circuit is theoretically explained. A floating gate neural MOS circuit is designed to compensate automatically the threshold temperature Tth variation that results form the process tolerance. The switch circuit is implemented in a standard 0.35 μm CMOS process. The temperature switch can be programmed to perform the switch operation at 16 different threshold temperature Tths from 45ï¼Â120°C with a 5°C increment. The measurement shows a good consistency in the threshold temperatures. The chip core area is 0.04 mm2 and power consumption is 3.1 μA at 3.3V power supply. The advantages of the temperature switch are low power consumption, the programmable threshold temperature and the controllable hysteresis.http://www.mdpi.com/1424-8220/8/5/3150/temperature switchfloating gate neural MOSthreshold temperatureprocess compensation |
| spellingShingle | Nanjian Wu Yunlong Li A Low-Cost CMOS Programmable Temperature Switch Sensors temperature switch floating gate neural MOS threshold temperature process compensation |
| title | A Low-Cost CMOS Programmable Temperature Switch |
| title_full | A Low-Cost CMOS Programmable Temperature Switch |
| title_fullStr | A Low-Cost CMOS Programmable Temperature Switch |
| title_full_unstemmed | A Low-Cost CMOS Programmable Temperature Switch |
| title_short | A Low-Cost CMOS Programmable Temperature Switch |
| title_sort | low cost cmos programmable temperature switch |
| topic | temperature switch floating gate neural MOS threshold temperature process compensation |
| url | http://www.mdpi.com/1424-8220/8/5/3150/ |
| work_keys_str_mv | AT nanjianwu alowcostcmosprogrammabletemperatureswitch AT yunlongli alowcostcmosprogrammabletemperatureswitch AT nanjianwu lowcostcmosprogrammabletemperatureswitch AT yunlongli lowcostcmosprogrammabletemperatureswitch |