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1. 发明授权

US5572156A Control circuit with a level shifter for switching an electronic switch 失效
标题翻译：具有用于切换电子开关的电平转换器的控制电路
公开(公告)号：US5572156A
公开(公告)日：1996-11-05
申请号：US529883
申请日：1995-09-18
申请人： Claudio Diazzi , Fabrizio Martignoni , Mario Tarantola
发明人： Claudio Diazzi , Fabrizio Martignoni , Mario Tarantola
IPC分类号： H02P7/29 , H03K3/356 , H03K17/06 , H03K17/16 , H03K17/687 , H03K3/00
CPC分类号： H03K3/356113 , H03K17/063 , H03K17/161 , H03K17/687
摘要： A control circuit for a power transistor, connected between two supply terminals in series with a load. The control circuit comprises a control logic circuit which produces a signal at two levels with respect to a reference terminal, a level shifter connected between the control circuit and the power transistor, which produces a signal at two levels relative to the node between the power transistor and the load. The level shifter comprises a flip-flop the output of which controls the power transistor, and an electronic switch, for example a MOSFET transistor, connected between the "set" input of the flip-flop and the node and controlled by the "reset" input of the flip-flop in such a way as to be closed when the "reset" input is greater, by a predetermined value, than that of the node. The electronic switch prevents the parasitic current flowing through the set and reset inputs from erroneously switching the power transistor.
摘要翻译：用于功率晶体管的控制电路，连接在与负载串联的两个电源端子之间。该控制电路包括控制逻辑电路，该控制逻辑电路相对于参考端产生两个电平的信号，连接在控制电路和功率晶体管之间的电平转换器，其产生相对于功率晶体管和负载。电平移位器包括其输出端控制功率晶体管的触发器和连接在触发器的“设置”输入和节点之间并由“复位”控制的电子开关，例如MOSFET晶体管，触发器的输入以当“复位”输入比节点的输入大一预定值时被关闭。电子开关防止流过设定和复位输入的寄生电流错误地切换功率晶体管。

2. 发明授权

US5883547A Charging of a bootstrap capacitance through an LDMOS 失效
标题翻译：通过LDMOS充电自举电容
公开(公告)号：US5883547A
公开(公告)日：1999-03-16
申请号：US644449
申请日：1996-05-13
申请人： Claudio Diazzi , Fabrizio Martignoni , Mario Tarantola
发明人： Claudio Diazzi , Fabrizio Martignoni , Mario Tarantola
IPC分类号： G01R19/165 , H01L21/8234 , H01L27/088 , H02J1/00 , H03K17/06 , H03K17/0814 , H02M7/162
CPC分类号： H03K17/08142 , H03K17/063
摘要： A charging circuit for a bootstrap capacitance employing an integrated LDMOS transistor and including a circuital device for preventing the turning on a parasitic transistors of the integrated LDMOS structure during transients that comprises a plurality of directly biased junctions (D1, D2, . . . , Dn) connected in series between a source and a body of the LDMOS transistor structure and at least a current generator, tied to ground potential, coupled between said body and ground, has at least one switch (INT1) between said source and a first junction (D1) of said plurality of junctions and a limiting resistance (R) connected between the body and the current generator (GEN). The switch (INT1) is kept open during a charging phase of the bootstrap capacitance (Cboot) and is closed when the charge voltage (Vboot) of the bootstrap capacitance reaches a preset threshold. Moreover, the body voltage (VB) is prevented from exceeding the source voltage (VS) plus a Vbe, by controlling a discharge path (T2) with a control stage (T1, R1) in response to a drop of the voltage on the limiting resistance (R). This body voltage control circuit is enabled by a second switch (INT2) driven in phase with the first switch (INT1).
摘要翻译：一种用于使用集成LDMOS晶体管的自举电容的充电电路，并且包括用于在包括多个直接偏置的结（D1，D2，...，Dn）的瞬变期间阻止集成LDMOS结构的寄生晶体管的导通的电路装置）串联连接在LDMOS晶体管结构的源极和主体之间，并且至少连接在所述主体和地之间的接地电位的电流发生器在所述源和第一结之间具有至少一个开关（INT1） D1）和连接在主体和电流发生器（GEN）之间的限制电阻（R）。开关（INT1）在自举电容（Cboot）的充电阶段保持打开，当自举电容的充电电压（Vboot）达到预设阈值时，开关闭合。此外，通过响应于限制电压的下降控制具有控制级（T1，R1）的放电路径（T2），防止体电压（VB）超过源极电压（VS）加上Vbe 电阻（R）。该体电压控制电路由与第一开关（INT1）同相驱动的第二开关（INT2）使能。

3. 发明授权

US5825138A Timing of different phases in an ignition circuit 失效
标题翻译：点火电路中不同相位的时序
公开(公告)号：US5825138A
公开(公告)日：1998-10-20
申请号：US721437
申请日：1996-09-27
申请人： Claudio Diazzi , Mario Tarantola , Fabrizio Martignoni
发明人： Claudio Diazzi , Mario Tarantola , Fabrizio Martignoni
IPC分类号： H05B41/295 , G05F1/00
CPC分类号： H05B41/295
摘要： The need of implementing a second local oscillator in addition to the drive oscillator, for timing the different phases of the starting process of a half-bridge or bridge stage driving an external load, such as a fluorescent lamp, is avoided by employing a timing counter to count the number of oscillations produced by the drive oscillator, and a digital-to-analog converter for controlling the frequency of oscillation of the drive oscillator.
摘要翻译：除了驱动振荡器之外实现第二本地振荡器的需要，用于定时驱动诸如荧光灯的外部负载的半桥或桥接台的启动过程的不同阶段，通过采用定时计数器以计数由驱动振荡器产生的振荡的数量，以及用于控制驱动振荡器的振荡频率的数模转换器。

4. 发明授权

US5552731A Integrated control circuit with a level shifter for switching an electronic switch 失效
标题翻译：具有用于切换电子开关的电平转换器的集成控制电路
公开(公告)号：US5552731A
公开(公告)日：1996-09-03
申请号：US529882
申请日：1995-09-18
申请人： Claudio Diazzi , Fabrizio Martignoni , Mario Tarantola
发明人： Claudio Diazzi , Fabrizio Martignoni , Mario Tarantola
IPC分类号： H02P7/29 , H03K17/16 , H03K17/687 , H03K3/00
CPC分类号： H03K17/687 , H03K17/161
摘要： A circuit for controlling a power transistor connected in series with a load. The circuit comprises a control logic circuit which produces a signal at two levels with respect to a reference terminal, a level shifter connected between the control circuit and the power transistor, and which produces a signal at two levels referred to the node between the power transistor and the load. The level shifter includes a flip-flop the output of which controls the power transistor as well as two transistors driven by the control logic circuit to switch alternately and provide switching signals on the "set" and "reset" inputs of the flip-flop via two resistors. Two parasitic current generators inject current into the two resistors during the phase in which the power transistor is cut off. To prevent this current from causing unwanted switching of the flip-flop, a resistor connected to the "set" terminal of the flip-flop has a lower resistance than that of the other resistor.
摘要翻译：用于控制与负载串联连接的功率晶体管的电路。该电路包括控制逻辑电路，该控制逻辑电路相对于参考端产生两个电平的信号，连接在控制电路和功率晶体管之间的电平转换器，并且其产生两个电平的信号，所述两个电平参考功率晶体管和负载。电平移位器包括触发器，其输出控制功率晶体管以及由控制逻辑电路驱动的两个晶体管交替切换，并在触发器的“设置”和“复位”输入端经由两个电阻。在功率晶体管截止的阶段，两个寄生电流发生器将电流注入到两个电阻中。为了防止该电流引起触发器的不期望的切换，连接到触发器的“设置”端子的电阻器具有比另一个电阻器更低的电阻。

5. 发明授权

US5160854A Single-drive level shifter with low dynamic impedance 失效
标题翻译：具有低动态阻抗的单驱动水平移位器
公开(公告)号：US5160854A
公开(公告)日：1992-11-03
申请号：US734911
申请日：1991-07-24
申请人： Fabrizio Martignoni , Claudio Diazzi , Albino Pidutti , Fabio Vio
发明人： Fabrizio Martignoni , Claudio Diazzi , Albino Pidutti , Fabio Vio
IPC分类号： H03K17/04 , H03K17/0412 , H03K17/06 , H03K17/687 , H03K19/0185
CPC分类号： H03K17/06 , H03K17/04123 , H03K17/063
摘要： A level shifter, particularly suited for driving power stages for supplying power to integrated circuits, includes a DMOS transistor (40) which is driven by a digital signal source (42) and has a load resistor (44) as its drain load. A shifted output signal develops at the ends of said load resistor. The drain (V1) of the DMOS transistor is connected to the input of an inverter (46), while a Zener diode (54) and a second transistor (52) are connected in parallel with the load resistor (44), the gate of the second transistor (52) being driven by the output of the inverter (46). The output of the inverter (46) can be connected to the input of a drive stage (48), the output of which drives a power stage (50) for supplying power to an integrated circuit.

6. 发明授权

US5146109A Circuit for driving a floating circuit in response to a digital signal 失效
标题翻译：用于驱动数字信号的浮动电路的电路
公开(公告)号：US5146109A
公开(公告)日：1992-09-08
申请号：US736003
申请日：1991-07-25
申请人： Fabrizio Martignoni , Claudio Diazzi , Albino Pidutti , Fabio Vio
发明人： Fabrizio Martignoni , Claudio Diazzi , Albino Pidutti , Fabio Vio
IPC分类号： H03K17/567 , H03K3/356 , H03K17/687 , H03K19/0185
CPC分类号： H03K3/35613 , H03K3/356034
摘要： A driving circuit for driving a floating circuit (28) responsive to a digital signal (IN) includes two DMOS transistors (10, 12) which are driven in opposite phase on their respective gates starting from the digital signal. The two DMOS transistors are biased by a current source which is formed by a current mirror (16, 18), which mirrors a reference current (I.sub.BIAS), and by an auxiliary circuit (34-44) for injecting an additional current pulse during switching. Two MOS transistors (20, 22) serve as the respective loads for the two DMOS transistors. The MOS transistors can be P-channel transistors, in which event the gate of each MOS transistor (20, 22) can be connected to the drain of the other MOS transistor. Two Zener diodes (24, 26) can be employed to limit the voltage between the gate and source of the respective MOS transistor. The driving output of the floating circuit (28) can be the drain of one of the DMOS transistors.

7. 发明授权

US5804884A Surface electrical field delimiting structure for an integrated circuit 失效
标题翻译：集成电路的表面电场分界结构
公开(公告)号：US5804884A
公开(公告)日：1998-09-08
申请号：US492597
申请日：1995-06-20
申请人： Claudio Diazzi , Bruno Murari , Ubaldo Mastromatteo , Claudio Contiero
发明人： Claudio Diazzi , Bruno Murari , Ubaldo Mastromatteo , Claudio Contiero
IPC分类号： H01L21/76 , H01L21/822 , H01L23/31 , H01L23/58 , H01L27/04 , H01L23/28 , H01L23/29
CPC分类号： H01L23/585 , H01L23/315 , H01L2924/0002
摘要： The resin sealing layer enclosing the device is biased to a low voltage by means of an anchoring structure formed close to high-voltage contact pads. The anchoring structure is formed by a metal region deposited on the surface of the device and contacting the resin layer, and by a deep region extending from the surface of the device, beneath the metal region, to the substrate. The electrical field in the resin layer is confined between the high-voltage pads and the anchoring structure and prevented from generating polarity inversions in the semiconductor material at the low-voltage contact pads or any other points at which the resin layer contacts the body of semiconductor material.
摘要翻译：封闭该器件的树脂密封层通过靠近高压接触焊盘形成的锚定结构而被偏压到低电压。锚定结构由沉积在器件表面上的金属区域形成，并且与金属区域下方的树脂层和从器件表面延伸的深部区域接触。树脂层中的电场被限制在高压焊盘和锚固结构之间，并且防止在低压接触焊盘或树脂层与半导体本体接触的任何其它点处产生半导体材料中的极性反转材料。

8. 发明授权

US5589759A Circuit for detecting voltage variations in relation to a set value, for devices comprising error amplifiers 失效
标题翻译：用于检测与设定值相关的电压变化的电路，用于包括误差放大器的装置
公开(公告)号：US5589759A
公开(公告)日：1996-12-31
申请号：US100482
申请日：1993-07-30
申请人： Pierandrea Borgato , Claudio Diazzi , Albino Pidutti
发明人： Pierandrea Borgato , Claudio Diazzi , Albino Pidutti
IPC分类号： G01R19/12 , G01R19/165 , H02M3/156 , G05F1/63
CPC分类号： H02M3/156
摘要： A circuit for detecting voltage variations in relation to a set value, for devices, such as a power supply circuit, comprising an error amplifier fed back by a compensating capacitor which, under steady state operating conditions, is not supplied with current, and, in the presence of transient output voltage (V.sub.o) of the device, is supplied with current (DI) proportional to the variation in voltage, the circuit comprising a current sensor connected to the compensating capacitor for detecting the current (DI) through the same; and the output signal of the sensor preferably being supplied to a circuit for limiting the variation in output voltage which, in the event the voltage variation exceeds a given threshold value (V.sub.R1), activates a control stage connected to the output of the device.
摘要翻译：一种用于检测与设定值相关的电压变化的电路，用于诸如电源电路的装置，包括由在补偿电容器反馈的误差放大器，所述补偿电容器在稳态工作条件下不被提供电流，并且在提供器件的瞬态输出电压（Vo）的存在与电压变化成比例的电流（DI），该电路包括连接到补偿电容器的电流传感器，用于检测通过该电流的电流（DI）; 并且传感器的输出信号优选地被提供给用于限制输出电压变化的电路，其在电压变化超过给定阈值（VR1）的情况下激活连接到装置的输出的控制级。

9. 发明授权

US5138200A Device for generating a reference voltage for a switching circuit including a capacitive bootstrap circuit 失效
标题翻译：用于产生包括电容式启动电路的开关电路的参考电压的装置
公开(公告)号：US5138200A
公开(公告)日：1992-08-11
申请号：US423288
申请日：1989-10-18
申请人： Andrea Barsanti , Claudio Diazzi , Fabio Vio
发明人： Andrea Barsanti , Claudio Diazzi , Fabio Vio
IPC分类号： H03K5/02 , G01R29/12 , H03K17/06 , H03K17/687
CPC分类号： H03K17/063
摘要： This device for generating a reference voltage for a capacitive bootstrap circuit of an output stage can be easily integrated. The output stage comprises a driving block, a capacitive bootstrap circuit and a reference voltage generating block generating a floating reference voltage which is referred to the output voltage signal and switches in accordance thereto.

10. 发明授权

US4549095A Control circuit for switching inductive loads 失效
标题翻译：用于切换感性负载的控制电路
公开(公告)号：US4549095A
公开(公告)日：1985-10-22
申请号：US441851
申请日：1982-11-15
申请人： Fabrizio Stefani , Carlo Cini , Claudio Diazzi
发明人： Fabrizio Stefani , Carlo Cini , Claudio Diazzi
IPC分类号： G11B23/087 , G11B23/38 , H03K17/0412 , H03K17/64 , H03K17/60 , H03K3/26
CPC分类号： H03K17/64 , H03K17/04126
摘要： A control circuit for switching inductive loads which can be monolithically integrated and used in high-speed printing equipment and in chopper power supply systems. The circuit includes a final power transistor, driven for switching by means of a drive transistor coupled to its control terminal. A speedup circuit is connected to the control terminals of both of the transistors in order to accelerate the turning off of the transistors by reducing the discharge time thereof. Such a speedup circuit is enabled so as to remove charge carriers only for a period of time which begins when the transistors are turned off in order to avoid additional time delays when the transistors are subsequently turned on again.
摘要翻译：用于切换感应负载的控制电路，其可以单片集成并用于高速打印设备和斩波电源系统中。该电路包括一个最终的功率晶体管，驱动用于通过耦合到其控制端的驱动晶体管来切换。加速电路连接到两个晶体管的控制端，以便通过减少晶体管的放电时间来加速晶体管的截止。这样的加速电路被启用，以便仅在晶体管截止时开始的时间段内去除电荷载体，以便在再次接通晶体管时避免额外的时间延迟。

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