公开(公告)号：US07914205B2

公开(公告)日：2011-03-29

申请号：US12351673

申请日：2009-01-09

申请人： Giovanni Galli

发明人： Giovanni Galli

IPC分类号： G01K7/01 ,  G01K7/14

CPC分类号： G01K7/015

摘要： A temperature sensor circuit in accordance with an embodiment of the present invention includes a temperature sensing element operable to provide a temperature voltage that is linearly related to the absolute temperature of the circuit. The temperature sensing element includes a first bi-polar junction transistor and a second bipolar junction transistor connected between a supply voltage and a common ground, wherein the base of first bipolar junction transistor is connected to the base of the second bipolar junction transistor, a first resistor connected between an emitter of the first bipolar junction transistor and the common ground and a second resistor connected between the common ground and a first node, wherein the temperature voltage is provided to the first node across the second resistor. The temperature sensor circuit also includes a current supply element operable to supply a common current to a collector of the first bipolar junction transistor, the second bipolar junction transistor and to the second resistor, respectively, an early voltage element operable to compensate for variations in voltage, a base current element operable to provide a steady base current to the bases of the first and second bipolar junction transistors, a channel modulation element operable to compensate for channel modulation and a leakage element operable to compensate for epi-substrate leakage between the circuit and a substrate on which it is formed.

摘要翻译： 根据本发明的实施例的温度传感器电路包括温度感测元件，其可操作以提供与电路的绝对温度线性相关的温度电压。 温度感测元件包括连接在电源电压和公共地之间的第一双极结晶体管和第二双极结晶体管，其中第一双极结晶体管的基极连接到第二双极结晶体管的基极，第一 连接在第一双极结型晶体管的发射极和公共地之间的电阻器和连接在公共地与第一节点之间的第二电阻器，其中温度电压通过第二电阻器提供给第一节点。 温度传感器电路还包括电流源元件，其可操作以分别向第一双极结型晶体管，第二双极结型晶体管和第二电阻器的集电极提供公共电流，该电压元件可用于补偿电压变化 基极电流元件，其可操作以向所述第一和第二双极结晶体管的基极提供稳定的基极电流;沟道调制元件，其可操作以补偿沟道调制;以及泄漏元件，其可操作以补偿所述电路和 其上形成有基底。

公开(公告)号：US07554276B2

公开(公告)日：2009-06-30

申请号：US11533508

申请日：2006-09-20

申请人： Giovanni Galli ,  Massimo Grasso ,  Cesare Bocchiola

发明人： Giovanni Galli ,  Massimo Grasso ,  Cesare Bocchiola

IPC分类号： H02P5/00

CPC分类号： H03K17/6877 ,  H02M1/32 ,  H02M7/5387 ,  H02M2001/0006 ,  H02P3/06 ,  H02P3/22 ,  H02P6/24 ,  H03K2017/6875 ,  Y10T307/615 ,  Y10T307/625

摘要： A safety circuit for providing protection against failures that impact safety of an inverter circuit driving a Permanent Magnet Synchronous Motor (PMSM) including high and low side switches connected in a bridge and driven by a gate driver circuit during operation of the PMSM in a field weakening mode, the gate driver circuit including stages for driving the high and low side switches, the safety circuit comprising a main power supply and a back-up power supply for supplying voltage to the gate driver circuit driving the switches of the bridge of the inverter circuit, wherein if the main power supply fails to deliver adequate power to the gate driver circuit, the back-up power supply provides power to the gate driver circuit to allow the gate driver circuit to turn ON the low side switches and turn OFF the high side switches.

摘要翻译： 一种安全电路，用于提供防止影响驱动永磁同步电动机（PMSM）的逆变器电路的安全性的安全电路，该永磁同步电动机（PMSM）包括连接在桥中的高侧和低侧开关，并在PMSM的弱磁场运行期间由栅极驱动电路驱动 模式，栅极驱动器电路包括用于驱动高低侧开关的级，安全电路包括主电源和用于向驱动逆变器电路的桥的开关的栅极驱动电路提供电压的备用电源 其中，如果所述主电源不能向所述栅极驱动电路输送足够的电力，所述备用电源向所述栅极驱动电路提供电力，以允许所述栅极驱动电路接通所述低压侧开关并且关闭所述高压侧 开关。

公开(公告)号：US20090154035A1

公开(公告)日：2009-06-18

申请号：US11959148

申请日：2007-12-18

申请人： Maurizio Galvano ,  Giovanni Galli

发明人： Maurizio Galvano ,  Giovanni Galli

IPC分类号： H02H9/04

CPC分类号： H02H9/046 ,  H01L2924/0002 ,  H02H1/04 ,  H02M3/155 ,  H01L2924/00

摘要： A circuit arrangement includes an ESD protection circuit for protecting a circuit node of the circuit arrangement against electrostatic discharge. The circuit arrangement includes a control circuit configured to deactivate the ESD protection circuit in response to a state signal representing a state of operation of the circuit arrangement.

摘要翻译： 电路装置包括用于保护电路装置的电路节点免受静电放电的ESD保护电路。 该电路装置包括控制电路，该控制电路被配置为响应于表示电路装置的操作状态的状态信号来停用ESD保护电路。

公开(公告)号：US07227331B2

公开(公告)日：2007-06-05

申请号：US11352719

申请日：2006-02-13

申请人： Giovanni Galli ,  Toshio Takahashi

发明人： Giovanni Galli ,  Toshio Takahashi

IPC分类号： H02P3/00

CPC分类号： D06F37/42 ,  H02P25/024 ,  H02P29/0241

摘要： A circuit for protecting against controller failure wherein the controller provides control signals for controlling a DC to AC inverter fed by a DC bus and driving a permanent magnet motor, the circuit comprising a first circuit for monitoring the DC bus voltage and, in the event the DC bus voltage exceeds a first threshold due to a counter EMF generated by the motor, for producing a signal to the controller to provide a switch state to the inverter whereby the counter EMF is dissipated substantially in a motor circuit resistance of the permanent magnet motor as a result of a short circuit condition provided by the switch state of the inverter, thereby preventing the DC bus voltage of the inverter from exceeding the first threshold and causing the permanent magnet motor speed to be reduced.

摘要翻译： 一种用于防止控制器故障的电路，其中所述控制器提供用于控制由DC总线馈送的DC到AC逆变器并驱动永磁电动机的控制信号，所述电路包括用于监视DC总线电压的第一电路， 直流母线电压由于电动机产生的反电动势而超过第一阈值，用于向控制器产生信号以向变频器提供开关状态，从而使逆电动势基本上以永磁电动机的电动机回路电阻耗散 是由逆变器的开关状态提供的短路状态的结果，从而防止逆变器的直流母线电压超过第一阈值，并且使永磁电动机的速度降低。

公开(公告)号：US08154324B2

公开(公告)日：2012-04-10

申请号：US11684305

申请日：2007-03-09

申请人： Christian Locatelli ,  Giovanni Galli

发明人： Christian Locatelli ,  Giovanni Galli

IPC分类号： H03K5/00

CPC分类号： H02M1/088 ,  H02M7/5387

摘要： A driver integrated circuit for driving at least one high voltage half bridge stage. The driver including a filter circuit for filtering a signal provided to the half bridge stage, a minimum pulse width of the signal being near a constant time of the filter, wherein the filter circuit prevents distortions introduced when the signal is at its minimum pulse width from being passed to the half bridge stage.

摘要翻译： 用于驱动至少一个高压半桥级的驱动器集成电路。 驱动器包括用于对提供给半桥级的信号进行滤波的滤波器电路，该信号的最小脉冲宽度接近滤波器的恒定时间，其中滤波器电路防止当信号处于其最小脉​​冲宽度时引入的失真 被传递到半桥阶段。

公开(公告)号：US20080054998A1

公开(公告)日：2008-03-06

申请号：US11684305

申请日：2007-03-09

申请人： Christian Locatelli ,  Giovanni Galli

发明人： Christian Locatelli ,  Giovanni Galli

IPC分类号： H03B1/00

CPC分类号： H02M1/088 ,  H02M7/5387

摘要： A driver integrated circuit for driving at least one high voltage half bridge stage. The driver including a filter circuit for filtering a signal provided to the half bridge stage, a minimum pulse width of the signal being near a constant time of the filter, wherein the filter circuit prevents distortions introduced when the signal is at its minimum pulse width from being passed to the half bridge stage.

摘要翻译： 用于驱动至少一个高压半桥级的驱动器集成电路。 驱动器包括用于对提供给半桥级的信号进行滤波的滤波器电路，该信号的最小脉冲宽度接近滤波器的恒定时间，其中滤波器电路防止当信号处于其最小脉​​冲宽度时引入的失真 被传递到半桥阶段。

公开(公告)号：US20070063661A1

公开(公告)日：2007-03-22

申请号：US11533508

申请日：2006-09-20

申请人： Giovanni Galli ,  Massimo Grasso ,  Cesare Bocchiola

发明人： Giovanni Galli ,  Massimo Grasso ,  Cesare Bocchiola

IPC分类号： H02P5/00

CPC分类号： H03K17/6877 ,  H02M1/32 ,  H02M7/5387 ,  H02M2001/0006 ,  H02P3/06 ,  H02P3/22 ,  H02P6/24 ,  H03K2017/6875 ,  Y10T307/615 ,  Y10T307/625

摘要： A safety circuit for providing protection against failures that impact safety of an inverter circuit driving a Permanent Magnet Synchronous Motor (PMSM) including high and low side switches connected in a bridge and driven by a gate driver circuit during operation of the PMSM in a field weakening mode, the gate driver circuit including stages for driving the high and low side switches, the safety circuit comprising a main power supply and a back-up power supply for supplying voltage to the gate driver circuit driving the switches of the bridge of the inverter circuit, wherein if the main power supply fails to deliver adequate power to the gate driver circuit, the back-up power supply provides power to the gate driver circuit to allow the gate driver circuit to turn ON the low side switches and turn OFF the high side switches.

摘要翻译： 一种安全电路，用于提供防止影响驱动永磁同步电动机（PMSM）的逆变器电路的安全性的安全电路，该永磁同步电动机（PMSM）包括连接在桥中的高侧和低侧开关，并在PMSM的弱磁场运行期间由栅极驱动电路驱动 模式，栅极驱动器电路包括用于驱动高低侧开关的级，安全电路包括主电源和用于向驱动逆变器电路的桥的开关的栅极驱动电路提供电压的备用电源 其中，如果所述主电源不能向所述栅极驱动电路输送足够的电力，所述备用电源向所述栅极驱动电路提供电力，以允许所述栅极驱动电路接通所述低压侧开关并且关闭所述高压侧 开关。

公开(公告)号：US06859087B2

公开(公告)日：2005-02-22

申请号：US10696711

申请日：2003-10-29

申请人： Giovanni Galli ,  Marco Giandalia ,  Andrea Merello

发明人： Giovanni Galli ,  Marco Giandalia ,  Andrea Merello

IPC分类号： H01L27/04 ,  H01L21/822 ,  H02M1/00 ,  H02M1/08 ,  H02M1/32 ,  H02M3/337 ,  H03K17/08 ,  H03K17/56 ,  H03K3/00

CPC分类号： H02M1/32 ,  H02M3/3376 ,  H03K17/163 ,  H03K17/168

摘要： A gate drive integrated circuit for switching power transistors using an external controller includes a gate driving capability and low quiescent current and allows use of a bootstrap supply technique for providing the logic supply voltage. The gate driver integrated circuit detects power transistor desaturation, protecting a desaturated transistor from transient over voltages by smoothly turning off the desaturated transistor via a soft shutdown sequence. A fault control circuit of the gate driver integrated circuit manages protection of supply under-voltage and transistor desaturation and is capable of communicating with a plurality of gate driver integrated circuits in a multi-phase system using a dedicated local network.

摘要翻译： 用于使用外部控制器来切换功率晶体管的栅极驱动集成电路包括栅极驱动能力和低静态电流，并且允许使用自举电源技术来提供逻辑电源电压。 栅极驱动器集成电路检测功率晶体管去饱和，通过软关断序列平滑地关闭去饱和晶体管，保护不饱和晶体管免受瞬态过电压的影响。 栅极驱动器集成电路的故障控制电路管理供电欠压和晶体管去饱和的保护，并且能够使用专用的本地网络与多相系统中的多个栅极驱动器集成电路进行通信。

公开(公告)号：US06297664B1

公开(公告)日：2001-10-02

申请号：US09430357

申请日：1999-10-28

申请人： Giovanni Galli

发明人： Giovanni Galli

IPC分类号： H03K1716

CPC分类号： G06F13/4086

摘要： An active precision termination of the type incorporated in a voltage regulator for feeding the lines of an external bus is presented. Each termination includes a matching impedance connected in series to a switch formed by a MOS transistor, including a cell formed by a plurality of circuit branches provided in parallel and coupled to a unique output terminal. Each branch includes an input coupled to the series of the impedance and of the switch and receiving a control voltage signal. The body terminal of each MOS transistor receives a corresponding control signal via an inverter, whereas the control terminal of each MOS transistor receives a corresponding control voltage signal.

摘要翻译： 提出了并入用于馈送外部总线的线路的电压调节器中的类型的主动精密终端。 每个终端包括与由MOS晶体管形成的开关串联连接的匹配阻抗，该MOS晶体管包括由并联设置并耦合到唯一输出端子的多个电路支路形成的单元。 每个分支包括耦合到一系列阻抗和开关的输入端并接收控制电压信号。 每个MOS晶体管的主体端子经由反相器接收相应的控制信号，而每个MOS晶体管的控制端子接收相应的控制电压信号。

公开(公告)号：US06259297B1

公开(公告)日：2001-07-10

申请号：US09304709

申请日：1999-05-04

申请人： Giovanni Galli

发明人： Giovanni Galli

IPC分类号： H03K508

CPC分类号： H03F1/52 ,  H03K17/0826

摘要： A protection circuit is disclosed for a bipolar power transistor for preventing the operating point thereof from leaving a useful operating area. The protection circuit includes a sense resistor connected between an input supply voltage and a collector of the bipolar power transistor; a first branch circuit, including a first diode connected to the collector of the bipolar power transistor and a first current source connected between a common output node and the first diode; a second branch circuit, including a second diode and a second current source connected between the second diode and the common output node; and a third branch circuit. A short-circuit current level of the bipolar power transistor at relatively low voltage levels of the input supply voltage is based upon current levels for the first current source and the second current source and a resistance value of the sense resistor connected to the bipolar power transistor. The protection circuit further includes a fourth circuit branch including a current mirror connected to the common output node and a third current source connected between the input supply voltage and the current mirror. A short-circuit current level of the bipolar power transistor at relatively high voltage levels of the input supply voltage is substantially equal to the current level of the third current source.

摘要翻译： 公开了一种用于防止其工作点离开有用操作区域的双极功率晶体管的保护电路。 保护电路包括连接在双极性功率晶体管的输入电源电压和集电极之间的感测电阻器; 第一分支电路，包括连接到双极功率晶体管的集电极的第一二极管和连接在公共输出节点和第一二极管之间的第一电流源; 第二分支电路，包括连接在第二二极管和公共输出节点之间的第二二极管和第二电流源; 和第三分支电路。 在输入电源电压的相对低的电压电平下，双极性功率晶体管的短路电流水平基于第一电流源和第二电流源的电流水平，以及连接到双极功率晶体管的检测电阻器的电阻值 。 保护电路还包括第四电路分支，其包括连接到公共输出节点的电流镜和连接在输入电源电压和电流镜之间的第三电流源。 在输入电源电压的较高电压电平下，双极性功率晶体管的短路电流电平基本上等于第三电流源的电流电平。