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1. 发明授权

US06215338B1 Monitoring of low currents through a low-side driver DMOS by modulating its internal resistance 有权
标题翻译：通过调制其内阻来监控低端驱动器DMOS的低电流
公开(公告)号：US06215338B1
公开(公告)日：2001-04-10
申请号：US09321141
申请日：1999-05-27
申请人： Luigi Gervasi , Sergio Lecce , Franco Cocetta , Mauro Merlo
发明人： Luigi Gervasi , Sergio Lecce , Franco Cocetta , Mauro Merlo
IPC分类号： H03B100
CPC分类号： G01R31/026 , G01R19/0092
摘要： Relatively low currents are monitored through an integrated DMOS power transistor in a low-side driver configuration. A feedback circuit is responsive to the voltage applied to a gate of the DMOS power transistor to limit the minimum value to which the drain-source voltage may drop to keep it sufficiently high, and to allow a reliable monitoring of the current through the power transistor, even at relatively low levels. This is performed by increasing the conduction resistance of the power transistor at low current levels.
摘要翻译：通过低侧驱动器配置的集成DMOS功率晶体管监测相对较低的电流。反馈电路响应于施加到DMOS功率晶体管的栅极的电压以限制漏极 - 源极电压可能下降的最小值，以使其足够高，并且允许对通过功率晶体管的电流的可靠监测，即使在相对较低的水平。这是通过在低电流水平下增加功率晶体管的导通电阻来实现的。

2. 发明授权

US6072359A Current generator circuit having a wide frequency response 失效
标题翻译：电流发生器电路具有较宽的频率响应
公开(公告)号：US6072359A
公开(公告)日：2000-06-06
申请号：US108081
申请日：1998-06-30
申请人： Davide Brambilla , Daniela Nebuloni , Giorgio Rossi , Sergio Lecce
发明人： Davide Brambilla , Daniela Nebuloni , Giorgio Rossi , Sergio Lecce
IPC分类号： G05F3/26 , H03F3/345 , H03F3/343
CPC分类号： H03F3/345 , G05F3/267
摘要： A current generator circuit with controllable frequency response has at least one current mirror formed of MOS transistors, being powered through a terminal held at a constant voltage, having an input leg through which a reference current (I1) is driven by a first current generator (G1), and having an output leg for generating, on an output terminal (OUT) of the mirror, a mirrored current (I.sub.out) which is proportional to the reference current (I1). The input leg includes at least a first transistor (M1) which is diode-connected and has a control terminal (Ga1) coupled to a corresponding terminal (Ga2) of a second transistor (M2) included in the output leg. In accordance with the invention, the mirror circuit also has an impedance matching circuit connected across the control terminals (Ga1 and Ga2) of the first and second transistors and configured to hold the same voltage value at both terminals (Ga1 and Ga2). The impedance matching circuit has an adjustable output impedance, specifically lower in value than the value to be had without this circuit. It functions to regulate the impedance on the control node (Ga2) of the second transistor (M2). The invention is equally applicable to N-channel and P-channel MOS transistors. Advantageously, the reference current can be varied by an external signal which is a function of the output signal, to provide feedback regulating features.
摘要翻译：具有可控频率响应的电流发生器电路具有由MOS晶体管形成的至少一个电流镜，其通过保持在恒定电压的端子供电，具有输入支路，参考电流（I1）由第一电流发生器 G1），并且具有用于在镜的输出端（OUT）上产生与参考电流（I1）成比例的镜像电流（Iout）的输出支路。输入支路至少包括二极管连接的第一晶体管（M1），并且具有耦合到包括在输出支路中的第二晶体管（M2）的相应端子（Ga2）的控制端子（Ga1）。根据本发明，镜电路还具有连接在第一和第二晶体管的控制端（Ga1和Ga2）两端的阻抗匹配电路，并被配置为在两端（Ga1和Ga2）处保持相同的电压值。阻抗匹配电路具有可调节的输出阻抗，具体值低于没有该电路的值。它用于调节第二晶体管（M2）的控制节点（Ga2）上的阻抗。本发明同样适用于N沟道和P沟道MOS晶体管。有利地，参考电流可以通过作为输出信号的函数的外部信号来改变，以提供反馈调节特征。

3. 发明授权

US08907652B2 Band-gap voltage generator 有权
标题翻译：带隙电压发生器
公开(公告)号：US08907652B2
公开(公告)日：2014-12-09
申请号：US13438991
申请日：2012-04-04
申请人： Sergio Lecce , Maurizio Rossi
发明人： Sergio Lecce , Maurizio Rossi
IPC分类号： G05F3/16 , G05F3/30
CPC分类号： G05F3/30
摘要： A generator of a voltage logarithmically variable with temperature may include a differential amplifier having a pair of transistors, each coupled with a respective bias network adapted to bias in a conduction state the transistors first and second respectively with a constant current and with a current proportional to the working absolute temperature. The pair of transistors may generate between their control nodes the voltage logarithmically variable with temperature. The differential amplifier may have a common bias current generator coupled between the common terminal of the differential pair of transistors and a node at a reference potential, and a feedback line to provide a path for the current difference between the sum of currents flowing through the transistors of the differential pair and the common bias current.
摘要翻译：具有对数可变温度的电压的发生器可以包括具有一对晶体管的差分放大器，每个晶体管分别与相应的偏置网络耦合，该偏置网络适于以恒定电流分别以第一和第二晶体管以导通状态偏置晶体管，并且电流与工作绝对温度。该对晶体管可以在其控制节点之间产生对数可变温度的电压。差分放大器可以具有共同的偏置电流发生器，耦合在差分晶体管对的公共端和参考电位的节点之间，以及反馈线，以提供流过晶体管的电流之和之间的电流差的路径的差分对和公共偏置电流。

4. 发明申请

US20120256605A1 BAND-GAP VOLTAGE GENERATOR 有权
标题翻译：带隙电压发生器
公开(公告)号：US20120256605A1
公开(公告)日：2012-10-11
申请号：US13438991
申请日：2012-04-04
申请人： Sergio Lecce , Maurizio Rossi
发明人： Sergio Lecce , Maurizio Rossi
IPC分类号： G05F1/10
CPC分类号： G05F3/30
摘要： A generator of a voltage logarithmically variable with temperature may include a differential amplifier having a pair of transistors, each coupled with a respective bias network adapted to bias in a conduction state the transistors first and second respectively with a constant current and with a current proportional to the working absolute temperature. The pair of transistors may generate between their control nodes the voltage logarithmically variable with temperature. The differential amplifier may have a common bias current generator coupled between the common terminal of the differential pair of transistors and a node at a reference potential, and a feedback line to provide a path for the current difference between the sum of currents flowing through the transistors of the differential pair and the common bias current.
摘要翻译：具有对数可变温度的电压的发生器可以包括具有一对晶体管的差分放大器，每个晶体管分别与相应的偏置网络耦合，该偏置网络适于以恒定电流分别以第一和第二晶体管以导通状态偏置晶体管，并且电流与工作绝对温度。该对晶体管可以在其控制节点之间产生对数可变温度的电压。差分放大器可以具有共同的偏置电流发生器，耦合在差分晶体管对的公共端和参考电位的节点之间，以及反馈线，以提供流过晶体管的电流之和之间的电流差的路径的差分对和公共偏置电流。

5. 发明授权

US5874852A Current generator circuit having a wide frequency response 失效
标题翻译：电流发生器电路具有较宽的频率响应
公开(公告)号：US5874852A
公开(公告)日：1999-02-23
申请号：US706068
申请日：1996-08-30
申请人： Davide Brambilla , Daniela Nebuloni , Giorgio Rossi , Sergio Lecce
发明人： Davide Brambilla , Daniela Nebuloni , Giorgio Rossi , Sergio Lecce
IPC分类号： G05F3/26 , H03F3/345 , H03F3/343
CPC分类号： H03F3/345 , G05F3/267
摘要： A current generator circuit with controllable frequency response has at least one current mirror formed of MOS transistors, being powered through a terminal held at a constant voltage, having an input leg through which a reference current (I1) is driven by a first current generator (G1), and having an output leg for generating, on an output terminal (OUT) of the mirror, a mirrored current (I.sub.out) which is proportional to the reference current (I1). The input leg includes at least a first transistor (M1) which is diode-connected and has a control terminal (Ga1) coupled to a corresponding terminal (Ga2) of a second transistor (M2) included in the output leg by an impedance matching circuit configured to hold the same voltage value at both terminals (Ga1 and Ga2). The impedance matching circuit has an adjustable output impedance, specifically lower in value than the value to be had without this circuit. It functions to regulate the impedance on the control node (Ga2) of the second transistor (M2). The invention is equally applicable to N-channel and P-channel MOS transistors. Advantageously, the reference current can be varied by an external signal which is a function of the output signal, to provide feedback regulating features.
摘要翻译：具有可控频率响应的电流发生器电路具有由MOS晶体管形成的至少一个电流镜，其通过保持在恒定电压的端子供电，具有输入支路，参考电流（I1）由第一电流发生器 G1），并且具有用于在镜的输出端（OUT）上产生与参考电流（I1）成比例的镜像电流（Iout）的输出支路。输入支路至少包括二极管连接的第一晶体管（M1），并且具有通过阻抗匹配电路耦合到包括在输出支路中的第二晶体管（M2）的对应端子（Ga2）的控制端子（Ga1）被配置为在两个端子（Ga1和Ga2）处保持相同的电压值。阻抗匹配电路具有可调节的输出阻抗，具体值低于没有该电路的值。它用于调节第二晶体管（M2）的控制节点（Ga2）上的阻抗。本发明同样适用于N沟道和P沟道MOS晶体管。有利地，参考电流可以通过作为输出信号的函数的外部信号来改变，以提供反馈调节特征。

6. 发明授权

US5917254A Circuit for the controlled recycle without oscillation of a discharge current from an inductive load 失效
标题翻译：用于受控循环的电路，不受来自感性负载的放电电流的振荡
公开(公告)号：US5917254A
公开(公告)日：1999-06-29
申请号：US840328
申请日：1997-04-28
申请人： Sergio Lecce , Massimo Grasso , Giorgio Rossi
发明人： Sergio Lecce , Massimo Grasso , Giorgio Rossi
IPC分类号： H03K17/082 , H03K17/16 , H01H47/00
CPC分类号： H03K17/162 , H03K17/0822 , Y10T307/74 , Y10T307/826 , Y10T307/858 , Y10T307/865
摘要： A circuit for the controlled recycle without oscillation of a discharge current from an inductive load. The circuit comprises an active element connected, in series with the inductive load, between first and second power supply terminals, and having a control terminal to which a driver circuit is connected. The circuit further includes a recycling regulating circuitry connected to a connection node between the active element and the inductive load, and sensitive to a voltage threshold at the connection node to generate, depending on attainment of that threshold, a power-on signal for application to the control terminal effective to start up recycling of the discharge current through the active element. The circuit further comprises a control circuit for controlling the voltage oscillation at the connection node at the end of the recycling. The control circuit includes a circuit having a relatively low resistive impedance and being selectively connectable, at least upon the active element being turned off at the end of the recycling, between the connection node and a node having a substantially zero impedance toward at least one of the first and second power supply terminals.
摘要翻译：用于受控循环的电路，不受来自感性负载的放电电流的振荡。该电路包括与第一和第二电源端子之间与感性负载串联连接的有源元件，并且具有连接有驱动器电路的控制端子。电路还包括连接到有源元件和感性负载之间的连接节点的再循环调节电路，并且对于连接节点处的电压阈值敏感，以根据达到该阈值产生用于应用于控制终端有效启动通过有源元件的放电电流的再循环。电路还包括用于控制在再循环结束时在连接节点处的电压振荡的控制电路。所述控制电路包括具有相对较低电阻阻抗的电路，至少在所述有源元件在所述再循环结束时被截止时，所述电路具有相对较低的电阻阻抗，并且可在所述连接节点与具有基本零阻抗的节点之间至少一个第一和第二电源端子。

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