Microcomputer equipped with built-in temperature sensor
US6674623B1 · kind B1 · utility
44Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2000 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | May 24, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a microcomputer equipped with a built-in temperature sensor, diodes as a temperature sensor are incorporated in a pair of circuit blocks, respectively, and placed in opposite polarity connection to each other. When detecting a temperature of the microcomputer, a constant current If is supplied to the diodes through terminals commonly connected to both the diodes. A voltage Vf generated at each diode is read through terminals located at more adjacent nodes to the diode when compared in position with the terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.