公开(公告)号：US11005419B2

公开(公告)日：2021-05-11

申请号：US16661245

申请日：2019-10-23

Applicant: Texas Instruments Incorporated

Inventor： Kunhee Cho ,  Danielle Griffith ,  James Murdock ,  Per Torstein Roine

IPC: H03B5/04 ,  H03B5/36 ,  H03B5/08 ,  H03B5/00 ,  H03B5/32 ,  H03L5/00 ,  H03L1/02 ,  H03L1/00 ,  H03L7/00 ,  H04W84/18

Abstract: A circuit includes an oscillator having a driver and a resonator. The driver receives a supply voltage at a supply input and provides a drive output to drive the resonator to generate an oscillator output signal. A power converter receives an input voltage and generates the supply voltage to the supply input of the driver. A temperature tracking device in the power converter controls the voltage level of the supply voltage to the supply input of the driver based on temperature such that the supply voltage varies inversely to the temperature of the circuit.

公开(公告)号：US20200059197A1

公开(公告)日：2020-02-20

申请号：US16661245

申请日：2019-10-23

Applicant: Texas Instruments Incorporated

Inventor： Kunhee Cho ,  Danielle Griffith ,  James Murdock ,  Per Torstein Roine

IPC: H03B5/04 ,  H03L5/00 ,  H03B5/32 ,  H03B5/00 ,  H03B5/08 ,  H03B5/36 ,  H03L1/02 ,  H03L1/00

Abstract: A circuit includes an oscillator having a driver and a resonator. The driver receives a supply voltage at a supply input and provides a drive output to drive the resonator to generate an oscillator output signal. A power converter receives an input voltage and generates the supply voltage to the supply input of the driver. A temperature tracking device in the power converter controls the voltage level of the supply voltage to the supply input of the driver based on temperature such that the supply voltage varies inversely to the temperature of the circuit.

公开(公告)号：US10069501B2

公开(公告)日：2018-09-04

申请号：US15070810

申请日：2016-03-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kunhee Cho ,  Danielle Griffith ,  James Murdock ,  Per Torstein Roine

IPC: H03L7/099 ,  H03L5/00 ,  H03B5/00 ,  H03B1/00 ,  H03B5/08 ,  H03B5/32 ,  H04W84/18 ,  H03B5/36

Abstract: A circuit includes an oscillator having a driver and a resonator. The driver receives a supply voltage at a supply input and provides a drive output to drive the resonator to generate an oscillator output signal. A power converter receives an input voltage and generates the supply voltage to the supply input of the driver. The power converter varies the supply voltage based on an adjust command supplied to a command input of the power converter. A detector monitors a voltage level of the oscillator output signal. A controller sets the adjust command to the power converter to control the supply voltage to the supply input of the driver such that the voltage level of the oscillator output signal is set at or above a predetermined threshold voltage.