公开(公告)号：US06507178B2

公开(公告)日：2003-01-14

申请号：US09944065

申请日：2001-08-30

申请人： Franco Cocetta ,  Giorgio Rossi

发明人： Franco Cocetta ,  Giorgio Rossi

IPC分类号： G05F316

CPC分类号： H02J7/245 ,  G05F3/30 ,  Y02T10/92

摘要： An integrated self-powered and switching electronic circuit regulates a stable reference voltage and comprises a band-gap voltage generator to produce said stable reference voltage for a system circuit block that is generally supplied by the output of the band-gap generator through a comparator and an error amplifier. A regulating loop is provided between the output of the system block and the input of the voltage generator circuit to supply a voltage signal produced by the output of the system block. Advantageously, the voltage generator circuit incorporates both the comparator and the error amplifier.

摘要翻译： 集成的自供电和开关电子电路调节稳定的参考电压并且包括带隙电压发生器以产生用于系统电路块的所述稳定参考电压，该系统电路块通常通过比较器由带隙发生器的输出端提供， 误差放大器。 在系统块的输出端和电压发生器电路的输入端之间设置调节回路，以提供由系统块的输出产生的电压信号。 有利地，电压发生器电路包括比较器和误差放大器。

公开(公告)号：US3989131A

公开(公告)日：1976-11-02

申请号：US547077

申请日：1975-02-04

申请人： Franco Knirsch ,  Lucio Montanari ,  Giorgio Rossi

发明人： Franco Knirsch ,  Lucio Montanari ,  Giorgio Rossi

IPC分类号： B41J2/325 ,  B41J2/32 ,  B41J2/345 ,  B41J25/34 ,  B41J31/00 ,  B41M5/26 ,  H04N1/23 ,  B41J31/02 ,  G01D15/10 ,  H05B1/00

CPC分类号： B41J25/34 ,  B41J2/32 ,  B41J2/345

摘要： An electrothermic printing unit for writing dot matrix characters on a printing line of a recording medium by means of an electrothermal printing head which is continuously movable along the printing line during the printing operation and having a column of resistive printing elements therein disposed transverse to the printing line and selectively electrically heatable in timed relation with the movement of the head characterized in that a thermosensitive inking element having a support of heat permeable material covered by a coating of material transferable for the combined action of head and pressure is interposed between the head and the recording medium, pressure means being provided for pressing said printing elements against said support and said coating against said recording medium during the movement of the head.

摘要翻译： 一种电热印刷单元，用于通过电热打印头在记录介质的印刷线上写入点阵字符，该电热打印头在打印操作期间可沿印刷线连续移动并且具有横向于印刷的横向布置的一列电阻打印元件 线和选择性地电加热，其与头部运动的定时关系，其特征在于，具有由可转移以用于头部和压力的组合作用的材料涂层覆盖的由热可渗透材料支撑的热敏着墨元件插入在头部和 记录介质，提供压力装置，用于在头部移动期间将所述打印元件压靠在所述支撑件上并且将所述涂层压靠在所述记录介质上。

公开(公告)号：US5466073A

公开(公告)日：1995-11-14

申请号：US327850

申请日：1994-10-21

申请人： Giorgio Rossi ,  Michael L. Ritrovato ,  Gregory E. Johnson

发明人： Giorgio Rossi ,  Michael L. Ritrovato ,  Gregory E. Johnson

IPC分类号： B41J31/16 ,  B41J31/00 ,  B41J32/02

CPC分类号： B41J31/16

摘要： A ribbon cartridge for an impact printer includes a liquid ink container, a metering/transfer device such as a peristaltic pump, an ink reservoir pad, and an ink transfer roller. The metering/transfer device and a drive roller for the ribbon preferably receive motive power from a common source. With this arrangement, the cartridge carries a large quantity of ink and applies it to the fabric in a controlled manner, thus extending service life and improving operability of the cartridge.

摘要翻译： 用于冲击式打印机的色带盒包括液体墨水容器，诸如蠕动泵的计量/传送装置，墨水储存器垫和墨水输送辊。 用于带的计量/传送装置和驱动辊优选地从公共源接收动力。 通过这种布置，墨盒携带大量的墨水并以受控的方式将其施加到织物，从而延长了使用寿命并提高了墨盒的可操作性。

公开(公告)号：USD362626S

公开(公告)日：1995-09-26

申请号：US27133

申请日：1994-08-12

申请人： Giorgio Rossi

设计人： Giorgio Rossi

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。

公开(公告)号：US5350998A

公开(公告)日：1994-09-27

申请号：US872462

申请日：1992-04-23

申请人： Fabio Marchio ,  Enrico Novarini ,  Giorgio Rossi

发明人： Fabio Marchio ,  Enrico Novarini ,  Giorgio Rossi

IPC分类号： G05F3/22 ,  G05F3/30 ,  H03F1/30 ,  G05F3/16

CPC分类号： H03F1/302 ,  G05F3/225 ,  G05F3/30 ,  Y10S323/907

摘要： A circuit for temperature compensating the inverse saturation current of a bipolar transistor having a collector region, base and emitter regions defining a base-emitter junction is disclosed. A diode element having substantially said same saturation current is parallel-connected in reverse configuration to said base-emitter junction of the bipolar transistor. If the bipolar transistor is NPN type, the diode has an anode and cathode connected respective to the emitter and base regions of the transistor.

摘要翻译： 公开了一种用于温度补偿具有限定基极 - 发射极结的集电极区域，基极和发射极区域的双极晶体管的逆饱和电流的电路。 具有基本上相同饱和电流的二极管元件以双向晶体管的基极 - 发射极的反向配置并联连接。 如果双极晶体管为NPN型，二极管的阳极和阴极分别连接晶体管的发射极和基极区域。

公开(公告)号：US4872206A

公开(公告)日：1989-10-03

申请号：US175994

申请日：1988-03-31

申请人： Rinaldo Graziadei ,  Giorgio Rossi

发明人： Rinaldo Graziadei ,  Giorgio Rossi

IPC分类号： H03G3/20 ,  H03G3/34 ,  H04B1/10

CPC分类号： H03G3/3068 ,  H03G3/348

摘要： A mixer dynamic control (MDC) system for an AM superheterodyne receiver prevents saturation of the mixer stage caused by out-of-tune signals much more effectively than a so-called wide band RF-AGC system of the known art. The system contemplates detecting the converted IF signal before the band filter, amplifying the detected signal, extracting the dc component thereof and summing such a dc component to a dc control signal generated by a narrow band AGC and applying such a sum signal in lieu of the sole narrow band AGC system's control signal.

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。

公开(公告)号：US5578956A

公开(公告)日：1996-11-26

申请号：US615729

申请日：1996-03-14

申请人： Giorgio Rossi ,  Fabio Marchioo ,  Liana Luoni ,  Franco Cocetta

发明人： Giorgio Rossi ,  Fabio Marchioo ,  Liana Luoni ,  Franco Cocetta

IPC分类号： H03G11/00 ,  H03F1/52 ,  H03G11/02 ,  H03K17/082 ,  H03K5/08

CPC分类号： H03F1/523 ,  H03K17/0822

摘要： The invention concerns a circuit for limiting the maximum current to be supplied to a load through a power MOS, being an improvement of the limiting circuitry which uses an equalizing capacitor. The addition of circuitry with a one-way current flow between a terminal of the equalizing capacitor and the gate terminal of the power MOS is effective to lower the voltage across the capacitor and to speed up its charging process, thereby making the current limiting action expected from the circuit a timely one. The circuitry which limits current flow to one direction may include a second MOS of the same type as the power MOS. In this way, any deviations of the power MOS from its designed operation, e.g. due to its manufacturing process variation and thermal drift phenomena, can also be compensated.

摘要翻译： 本发明涉及一种用于限制通过功率MOS提供给负载的最大电流的电路，其是使用均衡电容器的限制电路的改进。 在均衡电容器的端子和功率MOS的栅极端子之间添加具有单向电流的电路有效地降低电容器两端的电压并加速其充电过程，从而使预期的电流限制动作 从电路及时的一个。 限制电流流向一个方向的电路可以包括与功率MOS相同类型的第二MOS。 以这种方式，功率MOS与其设计的操作的任何偏差，例如 由于其制造工艺变化和热漂移现象，也可以补偿。

公开(公告)号：US4910801A

公开(公告)日：1990-03-20

申请号：US139595

申请日：1987-12-30

申请人： Luigi Anzini ,  Rinaldo Graziadei ,  Giorgio Rossi

发明人： Luigi Anzini ,  Rinaldo Graziadei ,  Giorgio Rossi

IPC分类号： H03C3/00 ,  H03D7/14

CPC分类号： H03D7/1425 ,  H03D7/1408 ,  H03D7/1433 ,  H03D7/1458 ,  H03D2200/0033 ,  H03D2200/0088

摘要： An integrated coupling circuit for coupling a modulator to a ceramic filter in amplitude modulation receivers, which modulator includes an output stage comprising a pair of differential cells parallel-connected to each other. The coupling circuit comprises a pair of transistors connected to each other through their respective bases and forming a bridge circuit with a diode and third transistor. Each transistor in the pair is connected in a cascode configuration and powered from a respective current mirror circuit connected to an output terminal of the modulator.