Voltage-controlled oscillator (vco)

Details Voltage-controlled oscillator (vco) Voltage-controlled oscillator (vco)

H - Electricity

03

B

H03B 5/12 (2006.01) F02C 7/00 (2006.01) G01K 7/00 (2006.01) G08C 17/00 (2006.01)

Patent

CA 2656113

The present invention relates to a Voltage-Controlled Oscillator (VCO) and to use of the VCO in a high-temperature sensor transceiver. The VCO has a voltage input and a frequency of oscillation dependent on the voltage input. The VCO includes a transistor providing a gain allowing for a sustained oscillation. The transistor also has a capacitance that varies as a function of the voltage input. The high-temperature sensor includes a high-temperature sensor operatively coupled to the VCO for wireless transmission of an output signal of the sensor.

La présente invention concerne un oscillateur commandé par la tension (VCO) et permet de l'utiliser dans un transmetteur-récepteur de capteur à température élevée. Le VCO possède une entrée de tension et une fréquence d'oscillation dépendant de l'entrée de tension. Le VCO comprend un transistor apportant un gain permettant une oscillation maintenue. Le transistor possède également une capacitance qui varie sous forme de fonction de l'entrée de tension. Le capteur à température élevée est couplé de manière opérationnelle sur le VCO pour la transmission sans fil d'un signal de sortie du capteur.

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