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US 12,695,462 B2Granted
Temperature sensor
Assigneeams-OSRAM Asia Pacific Pte. Ltd.
InventorsIvan Porin Tolic, Gregor Schatzberger
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Abstract
A temperature sensor comprises a first oscillator to provide a first oscillation signal having a frequency that increases with increasing temperature and a second oscillator to provide a second oscillation signal having a frequency that decreases with increasing temperature. A time domain sigma-delta modulator is coupled to the first and the second oscillator to receive one of the first oscillation signal and the second oscillation signal to generate an output signal including a bitstream.
Claims15
A temperature sensor, comprising:
- a first oscillator operable to provide a first oscillation signal having a frequency that increases with increasing temperature;
- a second oscillator operable to provide a second oscillation signal having a frequency that decreases with increasing temperature;
- and
- a time domain sigma-delta modulator coupled to the first oscillator and the second oscillator operable to receive the first oscillation signal and the second oscillation signal and configured to generate an output signal including a bitstream.
1 more element
Dependencies are inferred from the claim text.