公开(公告)号：US12140483B2

公开(公告)日：2024-11-12

申请号：US17452224

申请日：2021-10-25

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Vincent Binet ,  Bruno Gailhard

IPC: G01K15/00 ,  G01K7/00 ,  G01K7/20 ,  G01K7/01

Abstract: A calibration method of a temperature sensor is provided. The temperature sensor having a current source and a ring oscillator generating a square pulse signal with a temperature-dependent square pulse frequency. The acquisition of a first square pulse frequency measurement at a first temperature from the square pulse signal forms a first measurement point. A second square pulse frequency measurement at a second temperature from the second square pulse signal forms a second measurement point. The determination of the relation data being representative of an affine relation between square pulse frequency measurements and temperatures. The affine relation being defined by a used proportionality coefficient modified with respect to a measured proportionality coefficient of a measured affine relation linking the first measurement point and the second measurement point.

公开(公告)号：US11115038B2

公开(公告)日：2021-09-07

申请号：US16923335

申请日：2020-07-08

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Bruno Gailhard ,  Laurent Truphemus ,  Christophe Eva

IPC: H03L7/10 ,  H03L7/089 ,  H03L7/099

Abstract: The operation of the phase-locked loop includes a startup phase where a reference signal having a duty cycle of 50% is applied to a phase comparator of the loop. A first divider of an output signal of the voltage-controlled oscillator of the loop is reset at each first type signal edge of the reference signal. The phase comparator receives the reference signal and a feedback signal from the first divider and generates a control pulse at each second type signal edge of the reference signal that causes a control voltage of the oscillator to increase.

公开(公告)号：US20210211120A1

公开(公告)日：2021-07-08

申请号：US17128890

申请日：2020-12-21

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Bruno Gailhard

IPC: H03K3/03 ,  H03K5/01

Abstract: Integrated circuit, comprising at least one ring oscillator including a succession of inverters looped back to form the ring, the at least one oscillator being intended to operate at a desired output frequency and configured so that the inverter transistors operate in or near their temperature inversion zone.

公开(公告)号：US10303234B2

公开(公告)日：2019-05-28

申请号：US15883216

申请日：2018-01-30

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Bruno Gailhard

IPC: G06F1/28 ,  H02H3/24 ,  H03K5/08 ,  G01R19/165 ,  H02H1/06 ,  H02H3/05 ,  H02H3/247 ,  H02M1/00

Abstract: An integrated processing unit is supplied by a power supply voltage present at the terminals of a capacitor configured to supply a maximum permissible voltage drop. A periodic pulse signal is generated having a period that is less than or equal to a current period determined from the maximum permissible voltage drop and a current consumption of the processing unit. The power supply voltage is compared with a threshold voltage at the pulse rate of the periodic pulse signal. A control signal generated from that comparison is delivered to the processing unit and has a first value when the power supply voltage is greater than or equal to the threshold voltage and a second value when the power supply voltage is less than the threshold voltage.

公开(公告)号：US20150097630A1

公开(公告)日：2015-04-09

申请号：US14502095

申请日：2014-09-30

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Bruno Gailhard ,  Michel Cuenca

IPC: H03L1/02 ,  H03K19/0948 ,  H03B5/04 ,  H03K19/017

CPC classification number: H03L1/026 ,  G05F3/262 ,  G11C7/04 ,  H03B5/04 ,  H03K19/00323 ,  H03K19/00369 ,  H03K19/0948

Abstract: A method includes generation of a first current proportional to absolute temperature and formation of a second current representative of the temperature variation of the threshold voltages of the transistors of the inverter and limited to a fraction of the first current. This fraction is less than one. The inverter is supplied with a supply current equal to the first current minus the limited second current.

Abstract translation: 一种方法包括产生与绝对温度成比例的第一电流和形成表示逆变器的晶体管的阈值电压的温度变化的第二电流，并将其限制为第一电流的一部分。 这个比例小于1。 逆变器的供电电流等于第一电流减去受限的第二电流。