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    • 3. 发明授权
    • Switching type bandgap controller
    • 开关式带隙控制器
    • US06507178B2
    • 2003-01-14
    • US09944065
    • 2001-08-30
    • Franco CocettaGiorgio Rossi
    • Franco CocettaGiorgio Rossi
    • G05F316
    • H02J7/245G05F3/30Y02T10/92
    • 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.
    • 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。
    • 5. 发明授权
    • Electrothermal printing unit
    • 电热印刷机
    • US3989131A
    • 1976-11-02
    • US547077
    • 1975-02-04
    • Franco KnirschLucio MontanariGiorgio Rossi
    • Franco KnirschLucio MontanariGiorgio Rossi
    • B41J2/325B41J2/32B41J2/345B41J25/34B41J31/00B41M5/26H04N1/23B41J31/02G01D15/10H05B1/00
    • B41J25/34B41J2/32B41J2/345
    • 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.
    • 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。
    • 8. 发明授权
    • Current generator circuit having a wide frequency response
    • 电流发生器电路具有较宽的频率响应
    • US6072359A
    • 2000-06-06
    • US108081
    • 1998-06-30
    • Davide BrambillaDaniela NebuloniGiorgio RossiSergio Lecce
    • Davide BrambillaDaniela NebuloniGiorgio RossiSergio Lecce
    • G05F3/26H03F3/345H03F3/343
    • H03F3/345G05F3/267
    • 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.
    • 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。