Time-controlled switch capacitor based temperature sensor
US11609127B2 · kind B2 · utility
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9References
19Claims
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Key dates
| Filing date | Apr 26, 2021 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Apr 26, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L23/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus comprises: a first circuitry to charge first and second capacitors to a predetermined voltage level; a second circuitry to discharge the first capacitor through a diode at a first time; a third circuitry to discharge the second capacitor through the diode at a second time, wherein the second time is greater than the first time; a comparator to compare a first voltage of the first capacitor with a second voltage of the second capacitor; and logic to adjust a scaling factor applied to the second voltage according to an output of the comparator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.