公开(公告)号：US08803604B2

公开(公告)日：2014-08-12

申请号：US13758031

申请日：2013-02-04

Applicant: STMicroelectronics S.R.L.

Inventor： Giovanni Conti ,  Domenico Cristaudo ,  Stefano Corradi

IPC: H03G3/00

CPC classification number: H05B37/02 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2320/0233 ,  G09G2330/028

Abstract: A control circuit is for generating upper and lower voltages that define a range of a data voltage for controlling a driving transistor of an electroluminescent component coupled to a supply line through the driving transistor. The control circuit may include a first input terminal configured to have a common voltage, and a pair of amplifiers coupled together at the first input terminal and configured to generate the upper voltage and the lower voltage to correspond to a difference between the common voltage and, respectively, first and second analog intermediate voltages representing respective threshold values of the upper voltage and of the lower voltage. The control circuit may include an auxiliary amplifier configured to adjust the upper voltage and the lower voltage based upon fluctuations of an input voltage, and generate the common voltage to correspond to the difference between the input voltage and a reference voltage.

Abstract translation: 控制电路用于产生限定用于控制通过驱动晶体管耦合到电源线的电致发光元件的驱动晶体管的数据电压的范围的上限和下限电压。 控制电路可以包括被配置为具有公共电压的第一输入端子和在第一输入端子耦合在一起的一对放大器，并且被配置为产生上限电压和较低电压以对应于公共电压之间的差， 分别表示表示上部电压和较低电压的相应阈值的第一和第二模拟中间电压。 控制电路可以包括辅助放大器，其被配置为基于输入电压的波动来调节上限电压和较低电压，并且产生公共电压以对应于输入电压和参考电压之间的差。

公开(公告)号：US20130207569A1

公开(公告)日：2013-08-15

申请号：US13758031

申请日：2013-02-04

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Giovanni CONTI ,  Domenico Cristaudo ,  Stefano Corradi

IPC: H05B37/02

CPC classification number: H05B37/02 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2320/0233 ,  G09G2330/028

Abstract: A control circuit is for generating upper and lower voltages that define a range of a data voltage for controlling a driving transistor of an electroluminescent component coupled to a supply line through the driving transistor. The control circuit may include a first input terminal configured to have a common voltage, and a pair of amplifiers coupled together at the first input terminal and configured to generate the upper voltage and the lower voltage to correspond to a difference between the common voltage and, respectively, first and second analog intermediate voltages representing respective threshold values of the upper voltage and of the lower voltage. The control circuit may include an auxiliary amplifier configured to adjust the upper voltage and the lower voltage based upon fluctuations of an input voltage, and generate the common voltage to correspond to the difference between the input voltage and a reference voltage.

Abstract translation: 控制电路用于产生限定用于控制通过驱动晶体管耦合到电源线的电致发光元件的驱动晶体管的数据电压的范围的上限和下限电压。 控制电路可以包括被配置为具有公共电压的第一输入端子和在第一输入端子耦合在一起的一对放大器，并且被配置为产生上限电压和较低电压以对应于公共电压之间的差， 分别表示表示上部电压和较低电压的相应阈值的第一和第二模拟中间电压。 控制电路可以包括辅助放大器，其被配置为基于输入电压的波动来调节上限电压和较低电压，并且产生公共电压以对应于输入电压和参考电压之间的差。

公开(公告)号：US20180117630A1

公开(公告)日：2018-05-03

申请号：US15586777

申请日：2017-05-04

Applicant: STMicroelectronics S.r.l.

Inventor： Giuseppe Calcagno ,  Domenico Cristaudo ,  Stefano Corradi

IPC: B06B1/02 ,  H03G3/20 ,  H03F3/45 ,  H03F1/02 ,  B06B1/06

CPC classification number: B06B1/0215 ,  B06B1/0603 ,  B06B1/0644 ,  H03F1/02 ,  H03F1/0233 ,  H03F1/0255 ,  H03F3/45 ,  H03F3/45475 ,  H03F2203/45248 ,  H03G1/00 ,  H03G3/001 ,  H03G3/007 ,  H03G3/20 ,  H03G2201/40

Abstract: A differential amplifier generates an output voltage waveform exhibiting a slew rate over a rise time. The amplifier is powered from a dc voltage input and includes a set of differential pairs having a bias current flowing therethrough and a Miller compensation capacitance. A comparator functions to compare a voltage at the dc voltage input against a reference voltage in order to detect when the voltage drops below the reference voltage. A gain stage controls the gain of the differential amplifier and a bias current control circuit controls the bias current of the differential amplifier. In response to the detection by the comparator of the voltage dropping below the reference voltage, the gain stage and the bias current control circuit decrease the gain of the amplifier and jointly decrease the bias current in order to maintain a value of the rise time.

公开(公告)号：US09787185B2

公开(公告)日：2017-10-10

申请号：US14840347

申请日：2015-08-31

Applicant: STMicroelectronics S.r.l.

Inventor： Gioacchino Lo Iacono ,  Domenico Cristaudo ,  Daniele Battaglia

IPC: H02M3/158 ,  H02M3/156 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M2001/0025 ,  H02M2001/0035 ,  H02M2001/0048 ,  Y02B70/1491 ,  Y02B70/16

Abstract: A boost converter receives an input voltage and provides an output voltage and includes a power switch and a voltage control circuit configured to drive the power switch as a function of the output voltage. A voltage sensing circuit in the form of a voltage divider is coupled to sense the output voltage and provide a feedback voltage. The voltage control circuit drives the power switch. An electronic control switch is configured to selectively connect the voltage divider to sense the output voltage as a function of an enable signal generated by a timer circuit. The enable signal is pulsed such that the voltage divider is periodically connected to sense the output voltage during a first time and is disconnected from sensing during a second time.

公开(公告)号：US20160079857A1

公开(公告)日：2016-03-17

申请号：US14840347

申请日：2015-08-31

Applicant: STMicroelectronics S.r.l.

Inventor： Gioacchino Lo Iacono ,  Domenico Cristaudo ,  Daniele Battaglia

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M2001/0025 ,  H02M2001/0035 ,  H02M2001/0048 ,  Y02B70/1491 ,  Y02B70/16

Abstract: A boost converter receives an input voltage and provides an output voltage and includes a power switch and a voltage control circuit configured to drive the power switch as a function of the output voltage. A voltage sensing circuit in the form of a voltage divider is coupled to sense the output voltage and provide a feedback voltage. The voltage control circuit drives the power switch. An electronic control switch is configured to selectively connect the voltage divider to sense the output voltage as a function of an enable signal generated by a timer circuit. The enable signal is pulsed such that the voltage divider is periodically connected to sense the output voltage during a first time and is disconnected from sensing during a second time.

Abstract translation: 升压转换器接收输入电压并提供输出电压，并且包括电源开关和电压控制电路，电压控制电路被配置成根据输出电压驱动电源开关。 耦合分压器形式的电压感测电路以感测输出电压并提供反馈电压。 电压控制电路驱动电源开关。 电子控制开关被配置为根据定时器电路产生的使能信号来选择性地连接分压器以感测输出电压。 使能信号是脉冲的，使得分压器周期性地连接以在第一时间期间感测输出电压，并且在第二时间内与感测断开连接。

公开(公告)号：US10571531B2

公开(公告)日：2020-02-25

申请号：US15918809

申请日：2018-03-12

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Crescentini ,  Marco Tartagni ,  Aldo Romani ,  Roberto Canegallo ,  Marco Marchesi ,  Domenico Cristaudo

IPC: G01R33/06 ,  G01R33/07 ,  G01R33/038 ,  G01R33/028 ,  G01R33/02 ,  G01R33/00 ,  B64G1/36 ,  G01R15/20 ,  G01R33/12 ,  G01N27/90 ,  G11C19/08 ,  H01F7/02

Abstract: A Hall sensor may include a Hall sensing element configured to produce a Hall voltage indicative of a magnetic field when traversed by an electric current, and a first pair of bias electrodes mutually opposed in a first direction across the Hall sensing element. The Hall sensor may include a second pair of bias electrodes mutually opposed in a second direction across the Hall sensing element. The Hall sensor may include a first pair of sensing electrodes mutually opposed in a third direction across the Hall sensing element, and a second pair of sensing electrodes mutually opposed in a fourth direction across the Hall sensing element. The fourth direction may be orthogonal to the third direction, each sensing electrode being between a bias electrode of the first pair and a bias electrode of the second pair.

公开(公告)号：US20180203076A1

公开(公告)日：2018-07-19

申请号：US15918809

申请日：2018-03-12

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Crescentini ,  Marco Tartagni ,  Aldo Romani ,  Roberto Canegallo ,  Marco Marchesi ,  Domenico Cristaudo

IPC: G01R33/07 ,  G01R33/00 ,  G01R33/02 ,  G01R33/038 ,  G01R33/028 ,  G01R15/20 ,  G01R33/12

Abstract: A Hall sensor may include a Hall sensing element configured to produce a Hall voltage indicative of a magnetic field when traversed by an electric current, and a first pair of bias electrodes mutually opposed in a first direction across the Hall sensing element. The Hall sensor may include a second pair of bias electrodes mutually opposed in a second direction across the Hall sensing element. The Hall sensor may include a first pair of sensing electrodes mutually opposed in a third direction across the Hall sensing element, and a second pair of sensing electrodes mutually opposed in a fourth direction across the Hall sensing element. The fourth direction may be orthogonal to the third direction, each sensing electrode being between a bias electrode of the first pair and a bias electrode of the second pair.

公开(公告)号：US09952291B2

公开(公告)日：2018-04-24

申请号：US15142270

申请日：2016-04-29

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Marco Crescentini ,  Marco Tartagni ,  Aldo Romani ,  Roberto Canegallo ,  Marco Marchesi ,  Domenico Cristaudo

IPC: G01R33/06 ,  G01R33/07 ,  G01R33/038 ,  G01R33/028 ,  G01R33/02 ,  G01R33/00 ,  G01R15/20 ,  G01R33/12

CPC classification number: G01R33/075 ,  G01R15/20 ,  G01R33/0029 ,  G01R33/0206 ,  G01R33/028 ,  G01R33/0283 ,  G01R33/038 ,  G01R33/07 ,  G01R33/1215

Abstract: A Hall sensor may include a Hall sensing element configured to produce a Hall voltage indicative of a magnetic field when traversed by an electric current, and a first pair of bias electrodes mutually opposed in a first direction across the Hall sensing element. The Hall sensor may include a second pair of bias electrodes mutually opposed in a second direction across the Hall sensing element. The Hall sensor may include a first pair of sensing electrodes mutually opposed in a third direction across the Hall sensing element, and a second pair of sensing electrodes mutually opposed in a fourth direction across the Hall sensing element. The fourth direction may be orthogonal to the third direction, each sensing electrode being between a bias electrode of the first pair and a bias electrode of the second pair.