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1. 发明授权

US5703476A Reference voltage generator, having a double slope temperature characteristic, for a voltage regulator of an automotive alternator 失效
标题翻译：具有双斜率温度特性的参考电压发生器，用于汽车交流发电机的电压调节器
公开(公告)号：US5703476A
公开(公告)日：1997-12-30
申请号：US674321
申请日：1996-07-01
申请人： Mauro Merlo , Franco Cocetta , Fabio Marchio , Massimo Grasso , Bruno Murari
发明人： Mauro Merlo , Franco Cocetta , Fabio Marchio , Massimo Grasso , Bruno Murari
IPC分类号： G05F1/46 , G05F3/22 , H02J7/14 , G05F3/16
CPC分类号： G05F1/463 , G05F3/225 , H02J7/1453 , Y10S323/907
摘要： A reference voltage generator having a dual slope temperature characteristic, for use in an automotive alternator voltage regulator, comprises a bandgap circuit (R1,R2,R3,R4) which generates a voltage (A) having a thermal drift coefficient of zero and a voltage (B) having a non-zero thermal drift coefficient. These voltages are applied to a voltage divider (R5,R6) and a voltage-follower type of circuit (OPA1). A unidirectional conduction amplifier circuit (OPA2) has an input terminal connected to an intermediate point (C) on the voltage divider. A second voltage divider (R7,R8) is connected between the output terminals of the voltage-follower circuit (D) and the amplifier circuit (E) . An intermediate node (F) of the second voltage divider is coupled to an output terminal (VREF) of the generator.
摘要翻译：具有用于汽车交流发电机电压调节器的双斜率温度特性的参考电压发生器包括产生具有热漂移系数为零的电压（A）的带隙电路（R1，R2，R3，R4）和电压（B）具有非零热漂移系数。这些电压被施加到分压器（R5，R6）和电压跟随器类型的电路（OPA1）。单向导通放大器电路（OPA2）具有连接到分压器上的中间点（C）的输入端子。第二分压器（R7，R8）连接在电压跟随器电路（D）的输出端子和放大器电路（E）之间。第二分压器的中间节点（F）耦合到发生器的输出端子（VREF）。

2. 发明申请

US20070063661A1 PROTECTION CIRCUIT FOR PERMANENT MAGNET SYNCHRONOUS MOTOR IN FILED WEAKENING OPERATION 有权
标题翻译：永磁同步电机保护电路在弱化运行中的应用
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。

3. 发明授权

US07135891B2 Current sense shunt resistor circuit 有权
标题翻译：电流检测分流电阻电路
公开(公告)号：US07135891B2
公开(公告)日：2006-11-14
申请号：US11208821
申请日：2005-08-22
申请人： Massimo Grasso , Aldo Torti , Andrea Merello , Jonas Aleksandravicius
发明人： Massimo Grasso , Aldo Torti , Andrea Merello , Jonas Aleksandravicius
IPC分类号： H03K5/22
CPC分类号： G01R19/0092 , G01R1/203
摘要： Current through a wire is sensed with a shunt resistor and a sense resistor in a current divider circuit. The values of the shunt resistor and sense resistor are related to provide a specified gain ratio to increase a dynamic range of current measurement. The sense resistor is a trimmable resistor, the configuration of which can be discerned from a look-up table based on a level of precision needed for current measurement. The two resistors can also be related by thermal coefficients to improve linearity of current measurements.
摘要翻译：通过分流电路中的分流电阻和检测电阻来检测通过导线的电流。分流电阻和检测电阻的值与提供规定的增益比相关联，以增加电流测量的动态范围。检测电阻是可调节的电阻器，其配置可以基于电流测量所需的精度水平从查找表中辨别出来。两个电阻也可以通过热系数相关联，以提高电流测量的线性度。

4. 发明申请

US20060033556A1 Start-up circuit for providing a start-up voltage to an application circuit 有权
标题翻译：启动电路，用于向应用电路提供启动电压
公开(公告)号：US20060033556A1
公开(公告)日：2006-02-16
申请号：US11199841
申请日：2005-08-09
申请人： Massimo Grasso , Sergio Morini
发明人： Massimo Grasso , Sergio Morini
IPC分类号： G05F1/10
CPC分类号： H02M3/335 , H02M1/36 , Y10S323/901
摘要： A startup circuit for providing a startup voltage from a high voltage DC bus voltage to an application circuit comprising an integrated circuit package for at least a control circuit for driving at least one power switch of the application circuit; a dropping resistor in the integrated circuit package having a first terminal for coupling to the high voltage DC bus and for dropping the high voltage DC bus voltage to a reduced voltage level at a second terminal; further comprising a low voltage regulator in the package coupled to the second terminal for providing a startup regulated low voltage DC output at a preset level for powering at least one part of the application circuit during startup of the application circuit. The application circuit may be, for example, a switching mode power supply.
摘要翻译：一种用于将高压DC总线电压的启动电压提供给应用电路的启动电路，所述应用电路包括至少用于驱动所述应用电路的至少一个电源开关的控制电路的集成电路封装; 所述集成电路封装中的降压电阻器具有用于耦合到所述高压DC总线的第一端子和用于在所述第二端子处将所述高压DC总线电压降低到降低的电压电平; 还包括在所述封装中的与所述第二端子耦合的低压调节器，用于提供预设电平的起动调节低压DC输出，以在所述应用电路启动期间为所述施加电路的至少一部分供电。应用电路可以是例如开关模式电源。

5. 发明授权

US06611154B2 Circuit for improving noise immunity by DV/DT boosting 有权
标题翻译：通过DV / DT增强提高抗噪声电路
公开(公告)号：US06611154B2
公开(公告)日：2003-08-26
申请号：US10186554
申请日：2002-06-28
申请人： Massimo Grasso , Muthu Subaramanian
发明人： Massimo Grasso , Muthu Subaramanian
IPC分类号： H03K190175
CPC分类号： H03K19/00361
摘要： A circuit for suppressing false operation of a level shift circuit due to a noise transient, the circuit comprising a first transistor coupled to a voltage source of the level shift circuit and being coupled to pass a current when a noise transient is present on the voltage source an output terminal coupled to the first transistor providing as an injected signal a current proportional to the current in the first transistor to at least one level shift transistor of the level shift circuit to prevent false triggering of the level shift circuit due to the noise transient.
摘要翻译：一种用于抑制由于噪声瞬变引起的电平移位电路的错误操作的电路，该电路包括耦合到电平移位电路的电压源的第一晶体管，并且当电压源上存在噪声瞬变时被耦合以传递电流耦合到所述第一晶体管的输出端子将与所述第一晶体管中的电流成比例的电流作为注入信号提供给所述电平移位电路的至少一个电平移位晶体管，以防止由于所述噪声瞬变引起的所述电平移位电路的错误触发。

6. 发明授权

US08013612B2 Ground fault detection circuit for use in high voltage motor drive applications 有权
标题翻译：用于高压电机驱动应用的接地故障检测电路
公开(公告)号：US08013612B2
公开(公告)日：2011-09-06
申请号：US12249116
申请日：2008-10-10
申请人： Sergio Morini , Marco Giandalia , David Respigo , Stefano Ruzza , Massimo Grasso
发明人： Sergio Morini , Marco Giandalia , David Respigo , Stefano Ruzza , Massimo Grasso
IPC分类号： G01R31/02
CPC分类号： G01R31/025 , G01R31/34 , G01R31/42
摘要： An integrated ground fault detection circuit in accordance with an embodiment of the present application includes a shunt resistor provided on a positive rail of a DC bus, a high voltage pocket including a sensory circuit connected to the shunt resistor and operable to detect a fault condition indicating a short circuit and a transmitter section operable to continuously transmit a fault condition signal indicating the fault condition and a low voltage pocket including a receiver operable to receive the fault condition signal from the sensory circuit and a logic unit, connected to the receiver, and operable to provide a fault output signal indicating the presence of a fault condition based on the fault condition signal.
摘要翻译：根据本申请的实施例的集成接地故障检测电路包括设置在DC总线的正极轨上的分流电阻器，包括连接到分流电阻器的感觉电路的高压口袋，并且可操作以检测指示短路和发送器部分，其可操作以连续发送指示故障状况的故障状态信号;以及低压口袋，包括可接收来自感觉电路的故障状态信号的接收器和连接到接收器的逻辑单元，并且可操作基于故障状态信号提供指示存在故障状况的故障输出信号。

7. 发明授权

US07619450B2 Start-up circuit for providing a start-up voltage to an application circuit 有权
标题翻译：启动电路，用于向应用电路提供启动电压
公开(公告)号：US07619450B2
公开(公告)日：2009-11-17
申请号：US12190811
申请日：2008-08-13
申请人： Massimo Grasso , Sergio Morini
发明人： Massimo Grasso , Sergio Morini
IPC分类号： H03L7/00
CPC分类号： H02M3/335 , H02M1/36 , Y10S323/901
摘要： A startup circuit for providing a startup voltage from a high voltage DC bus voltage to an application circuit, the startup circuit comprising an integrated circuit package for at least a control circuit for driving at least one power switch of the application circuit having a low voltage terminal; a dropping resistor in the integrated circuit package having a first terminal for coupling to the high voltage DC bus and a second terminal, the dropping resistor dropping the high voltage DC bus voltage to a reduced voltage and providing the reduced voltage at the second terminal; further comprising a low voltage regulator coupled to the second terminal for using the reduced voltage for enabling generation of a regulated startup low voltage DC output at a preset level at the low voltage terminal for powering at least one part of the application circuit during startup of the application circuit, wherein the high voltage DC bus voltage is the only voltage source provided externally to the integrated circuit package.
摘要翻译：一种用于将高压DC总线电压的启动电压提供给应用电路的启动电路，所述启动电路包括至少一个用于驱动具有低电压端子的应用电路的至少一个电源开关的控制电路的集成电路封装 ; 所述集成电路封装中具有用于耦合到高压DC总线的第一端子和第二端子的降压电阻器，所述降压电阻器将所述高压DC总线电压降低到降低的电压并在所述第二端子处提供降低的电压; 还包括耦合到所述第二端子的低电压调节器，用于使用所述降低的电压，以在所述低电压端子处能够在预定电平下产生调节的启动低压DC输出，以在所述低电压端子的启动期间向所述应用电路的至少一部分供电应用电路，其中高压DC总线电压是在集成电路封装外部提供的唯一电压源。

8. 发明授权

US07180273B2 Low switching frequency power factor correction circuit 有权
标题翻译：低开关频率功率因数校正电路
公开(公告)号：US07180273B2
公开(公告)日：2007-02-20
申请号：US11145683
申请日：2005-06-06
申请人： Cesare Bocchiola , Massimo Grasso , Toshio Takahashi
发明人： Cesare Bocchiola , Massimo Grasso , Toshio Takahashi
IPC分类号： G05F1/70
CPC分类号： H02M1/4225 , H02M1/4208 , Y02B70/126
摘要： A power factor correction circuit for driving a switch of a boost type converter circuit having an AC line frequency input, comprising a sense circuit for sensing and comparing the output voltage of the boost type converter circuit to a reference voltage, a circuit responsive to the output of the sense circuit for providing a drive signal for driving the switch, wherein the drive signal comprises a pulsed signal comprising a pulse grouping during each half cycle of the AC line frequency comprising at least one pulse wherein the number of pulses and frequency of the pulses of the pulse grouping changes with the output of the sense circuit up to a threshold value with the pulse width of the pulses being substantially constant; and when the output of the sense circuit has reached the threshold value, the pulse width of the pulses of the pulse grouping are varied in accordance with the output of the sense circuit.
摘要翻译：一种用于驱动具有AC线路频率输入的升压型转换器电路的开关的功率因数校正电路，包括用于感测和比较升压型转换器电路的输出电压与参考电压的感测电路，响应于输出的电路用于提供用于驱动开关的驱动信号的感测电路，其中所述驱动信号包括脉冲信号，所述脉冲信号包括在包括至少一个脉冲的每个半周期期间的脉冲分组，其中脉冲数和脉冲频率脉冲组合的脉冲宽度随着脉冲的脉冲宽度基本恒定而随着感测电路的输出而变化到阈值，并且当感测电路的输出达到阈值时，脉冲组合的脉冲的脉冲宽度根据感测电路的输出而变化。

9. 发明申请

US20060109072A1 Planar transformer arrangement 有权
标题翻译：平面变压器布置
公开(公告)号：US20060109072A1
公开(公告)日：2006-05-25
申请号：US11324556
申请日：2006-01-03
申请人： Marco Giandalia , Massimo Grasso , Marco Passoni
发明人： Marco Giandalia , Massimo Grasso , Marco Passoni
IPC分类号： H01F5/00
CPC分类号： H01F27/323 , H01F17/0013 , H01F27/2804 , H01F27/345 , H01F2017/0093 , H01F2019/085 , H01F2027/2819
摘要： A planar transformer arrangement and method provide isolation between an input signal and an output signal. The planar transformer arrangement includes a planar medium having a first layer, a second layer, and a dielectric interlayer arranged between the first and second layers; at least one meandering primary winding arranged on the first layer of the planar medium, a current flow being induced within the primary winding in accordance with the input signal; at least one meandering secondary winding arranged on the second layer of the planar medium, the primary and secondary windings forming a planar transformer, whereby a voltage is induced across the secondary winding in accordance with the current flow within the primary winding; and a mode elimination arrangement configured to produce a compensated voltage by compensating for a common mode interference on the voltage induced across the secondary winding, the mode elimination arrangement being further configured to generate the output signal in accordance with the compensated voltage; wherein the dielectric interlayer of the planar medium provides a voltage isolation between the primary and secondary windings.
摘要翻译：平面变压器布置和方法提供输入信号和输出信号之间的隔离。平面变压器布置包括平面介质，其具有布置在第一层和第二层之间的第一层，第二层和介电中间层; 布置在所述平面介质的所述第一层上的至少一个曲折的初级绕组，根据所述输入信号在所述初级绕组内感应出电流; 至少一个曲折的次级绕组布置在所述平面介质的第二层上，所述初级和次级绕组形成平面变压器，由此根据所述初级绕组内的电流流动在所述次级绕组上感应出电压; 以及模式消除装置，其被配置为通过补偿对所述次级绕组两端感应的电压的共模干扰来产生补偿电压，所述模式消除装置还被配置为根据所述补偿电压产生所述输出信号; 其中平面介质的电介质中间层提供初级和次级绕组之间的电压隔离。

10. 发明授权

US06809553B2 Digital level shifter with reduced power dissipation and false transmission blocking 有权
标题翻译：数字电平转换器具有降低的功耗和错误的传输阻塞
公开(公告)号：US06809553B2
公开(公告)日：2004-10-26
申请号：US09975946
申请日：2001-10-15
申请人： Sergio Morini , Massimo Grasso
发明人： Sergio Morini , Massimo Grasso
IPC分类号： H03K190175
CPC分类号： H03K5/1252 , H03K19/018571
摘要： A circuit including a level shifting device such as a high voltage MOS device which is turned on to make an output transition, and feedback circuitry which responds to the transition to turn off the level shifting device. A circuit including two n-channel devices and two p-channel devices can sense when current greater than a threshold flows through both devices of one channel type to prevent false output transitions due to rapid changes in offset voltage, or both features can be provided. Level shifting devices can also be connected so none of the devices receives its acknowledge signal from the device to which it provides an acknowledge signal to avoid a standoff between two devices. For each device, the feedback circuitry can distinguish acknowledge signals so a device that stops transmitting in response to a signal that was not an acknowledge signal cam be restarted.
摘要翻译：包括诸如高电压MOS器件的电平移位装置的电路，其被接通以进行输出转换，以及响应于转换以关闭电平移位装置的反馈电路。包括两个n沟道器件和两个p沟道器件的电路可以在大于阈值的电流流过一个通道类型的两个器件时检测，以防止由于偏移电压的快速变化引起的误输出转换，或者可以提供两个特征。电平移位装置也可以连接，所以没有一个装置从其提供确认信号的装置接收其确认信号，以避免两个装置之间的间隔。对于每个设备，反馈电路可以区分确认信号，因此响应于不是确认信号凸轮的信号重新启动停止发送的设备。

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