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21.发明授权
公开(公告)号：US5572156A
公开(公告)日：1996-11-05
申请号：US529883
申请日：1995-09-18
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。
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22.发明授权Device for protecting semiconductor circuits against transients on the supply line 失效用于保护供应线上的瞬态电流的半导体电路的装置
公开(公告)号：US5105324A
公开(公告)日：1992-04-14
申请号：US518018
申请日：1990-05-02
申请人： Bruno Murari , Claudio Diazzi , Klaus Rischmuller
发明人： Bruno Murari , Claudio Diazzi , Klaus Rischmuller
CPC分类号： H02H9/04
摘要： A series of Zener diodes (25) and an electronic power switch, such as an IGBT (18), are connected across a power supply. A circuit including a resistor (20) in series on the electronic switch, a threshold device (36, 38) connected to the resistor and a ramp generator with multiplier (40, 42, 44, 46, FIG. 2) or a thermal sensor (50, 44, 46 FIG. 3) detect the energy level dissipated in the electronic power switch when a transient occurs when the level exceeds a present value, the circuit supplies an output signal to a monostable circuit (26, 28, 48) to drive the electronic power switch with low resistance conditions for a preset time starting from the occurrence of the output signal. Another threshold device, connected to a resistor (30, 32), preferably senses the instantaneous power dissipated in the electronic switch to control the monostable circuit when the instantaneous power is higher than a preset threshold.
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公开(公告)号：US4816702A
公开(公告)日：1989-03-28
申请号：US130705
申请日：1987-12-09
申请人： Alberto Salina , Domenico Rossi , Claudio Diazzi
发明人： Alberto Salina , Domenico Rossi , Claudio Diazzi
IPC分类号： H03K19/0185 , H01L21/8238 , H01L27/092 , H03K3/037 , H03K3/353 , H03K3/3565 , H03K19/092 , H03K3/26 , H03K3/29 , H03K19/096
CPC分类号： H03K3/3565 , H03K3/0372
摘要： A CMOS logic circuit for sampling data coming from TTL logic circuits under frequency control by a system's clock intrinsically faster than prior art similar circuits is obtained by combining a TTL/CMOS compatibility interface inverting stage with a first stage of the sampling circuit (master or latch stage). The circuit of the invention permits elimination of two inverters and therefore reduction of data transfer delay.
摘要翻译： 通过将TTL / CMOS兼容性接口反相级与采样电路的第一级（主器件或锁存器）组合，获得CMOS逻辑电路，用于通过系统时钟对频率控制下的TTL逻辑电路进行采样，本质上比现有技术类似电路更快 阶段）。 本发明的电路允许消除两个逆变器，从而减少数据传输延迟。
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公开(公告)号：US08154172B2
公开(公告)日：2012-04-10
申请号：US11409125
申请日：2006-04-21
申请人： Luca Battaglin , Pietro Gallina , Giancarlo Saba , Giancarlo Zinco , Claudio Diazzi , Vittorio Peduto
发明人： Luca Battaglin , Pietro Gallina , Giancarlo Saba , Giancarlo Zinco , Claudio Diazzi , Vittorio Peduto
IPC分类号： H01L41/08
CPC分类号： H01L41/042
摘要： The invention relates to a circuit for highly efficient driving of piezoelectric loads, comprising a linear driving circuit portion connected to the load through an inductive-resistive connection whereto a voltage waveform is applied. Advantageously, the circuit comprises further respective circuit portions, structurally independent, connected in turn to the inductive-resistive connection through respective inductors to supply a considerable fraction of the overall current required by the load in the transient and steady state respectively.
摘要翻译： 本发明涉及一种用于高效驱动压电负载的电路，包括通过施加电压波形的电感电阻连接到负载的线性驱动电路部分。 有利地，电路包括另外的各个电路部分，其结构上独立的，分别通过相应的电感器连接到电感电阻连接，以分别在瞬态和稳定状态下提供负载所需的总电流的相当大的一部分。
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公开(公告)号：US20060261704A1
公开(公告)日：2006-11-23
申请号：US11409125
申请日：2006-04-21
申请人： Luca Battaglin , Pietro Gallina , Giancarlo Saba , Giancarlo Zinco , Claudio Diazzi , Vittorio Peduto
发明人： Luca Battaglin , Pietro Gallina , Giancarlo Saba , Giancarlo Zinco , Claudio Diazzi , Vittorio Peduto
IPC分类号： H01L41/09
CPC分类号： H01L41/042
摘要： The invention relates to a circuit for highly efficient driving of piezoelectric loads, comprising a linear driving circuit portion connected to the load through an inductive-resistive connection whereto a voltage waveform is applied. Advantageously, the circuit comprises further respective circuit portions, structurally independent, connected in turn to the inductive-resistive connection through respective inductors to supply a considerable fraction of the overall current required by the load in the transient and steady state respectively.
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公开(公告)号：US5825138A
公开(公告)日：1998-10-20
申请号：US721437
申请日：1996-09-27
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。
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27.发明授权Integrated control circuit with a level shifter for switching an electronic switch 失效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
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。
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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.
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29.发明授权Inductance and capacitance charge pump circuit for driving power MOS transistor bridges 失效用于驱动功率MOS晶体管桥的电感和电容电荷泵电路
公开(公告)号：US4980576A
公开(公告)日：1990-12-25
申请号：US364172
申请日：1989-06-12
申请人： Domenico Rossi , Claudio Diazzi
发明人： Domenico Rossi , Claudio Diazzi
CPC分类号： H03K17/0826 , H02M3/156 , H02M7/538 , H03K17/063
摘要： The circuit comprises a tank capacitance and a charge circuit supplied with the same voltage as the bridge and comprising an inductance and a control transistor. There is also provided a control circuit, which comprises an oscillator controlling the periodic switching of control transistor and a comparator which controls the momentary clamping of control transistor in the condition wherein the charge circuit is interrupted when the difference between the voltage across capacitance and the power supply voltage exceeds a preset maximum value and the unclamping of the same transistor when such difference falls below a preset minimum value. A further comparator similarly clamps control transistor if there is an excess current in the transistor itself.
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