公开(公告)号：US06774731B2

公开(公告)日：2004-08-10

申请号：US10244113

申请日：2002-09-13

申请人： Antonio Magazzu ,  Benedetto Marco Marletta ,  Giuseppe Gramegna ,  Alessandro D'Aquila

发明人： Antonio Magazzu ,  Benedetto Marco Marletta ,  Giuseppe Gramegna ,  Alessandro D'Aquila

IPC分类号： H03L706

CPC分类号： H03K17/162 ,  H03L7/0891 ,  H03L7/183

摘要： A method and a circuit for minimizing glitches in phase-locked loops is presented. The circuit includes an input terminal connected to an input of a phase detector; a series of a charge pump generator, a filter and a voltage controlled oscillator connected downstream of the phase detector; and a frequency divider feedback connected between an output of the voltage controlled oscillator and a second input of the phase detector. The circuit provides for the inclusion of a compensation circuit connected between the charge pump generator and the filter to absorb an amount of the charge passed therethrough. This compensation circuit includes a storage element connected in series to two switches. The first switch is coupled to and controlled by an output of the charge pump and the second switch is coupled to and controlled by an output of a phase detector.

摘要翻译： 提出了一种用于最小化锁相环中的毛刺的方法和电路。 电路包括连接到相位检测器的输入端的输入端子; 一系列电荷泵发生器，滤波器和连接在相位检测器下游的压控振荡器; 以及连接在压控振荡器的输出端和相位检测器的第二输入端之间的分频器反馈。 该电路提供包括连接在电荷泵发生器和滤波器之间的补偿电路，以吸收一定量的通过其的电荷。 该补偿电路包括与两个开关串联连接的存储元件。 第一开关耦合到电荷泵的输出并由电荷泵的输出控制，第二开关耦合到相位检测器的输出并由相位检测器的输出控制。

公开(公告)号：US6060875A

公开(公告)日：2000-05-09

申请号：US248924

申请日：1999-02-11

申请人： Salvatore Capici ,  Angelo D'Arrigo ,  Filippo Marino ,  Francesco Pulvirenti ,  Antonio Magazzu

发明人： Salvatore Capici ,  Angelo D'Arrigo ,  Filippo Marino ,  Francesco Pulvirenti ,  Antonio Magazzu

IPC分类号： H02M1/15 ,  H02J1/00

CPC分类号： H02M1/15

摘要： An electronic device smoothes a charge current peak in RLC output stages of switching step-up regulators, which stages include an input terminal and an output terminal with an inductance and a parasitic resistance in series therebetween, the latter corresponding to the series parasitic resistance of the inductance, and a capacitor connected between the output terminal and a ground. The device comprises a parallel of a resistor and a controlled switch connected between the inductance and the output terminal of the stage upstream of the capacitor. Advantageously, the switch would only be open during the charge transient of the capacitor.

摘要翻译： 电子装置平滑开关升压调节器的RLC输出级中的充电电流峰值，这些级包括输入端子和输出端子，其中电感和寄生电阻串联在其中，后者对应于串联寄生电阻 电感和连接在输出端子和地之间的电容器。 该装置包括电阻器和连接在电容器的上游的电感和输出端子之间的受控开关的并联。 有利地，开关仅在电容器的充电瞬变期间是断开的。

公开(公告)号：US5977811A

公开(公告)日：1999-11-02

申请号：US893246

申请日：1997-07-15

申请人： Antonio Magazzu

发明人： Antonio Magazzu

IPC分类号： H03K17/06 ,  H03L5/00

CPC分类号： H03K17/063

摘要： A translator circuit for a drive circuit of a power transistor connected to an electric load. The translator circuit includes a first current generator placed between a supply voltage reference and an input terminal of the drive circuit, a controlled switch placed between the input terminal and a ground reference, and a second current generator interposed between the controlled switch and the ground reference. The translator circuit further includes a circuit leg in the form of a current mirror connected in parallel with the second current generator. The translator circuit avoids phenomena of false switching.

摘要翻译： 一种用于连接到电负载的功率晶体管的驱动电路的转换器电路。 所述转换器电路包括放置在所述驱动电路的电源电压基准和输入端子之间的第一电流发生器，设置在所述输入端子和接地基准之间的受控开关，以及置于所述受控开关和所述接地基准之间的第二电流发生器 。 转换器电路还包括与第二电流发生器并联连接的电流镜形式的电路支脚。 翻译电路避免了错误切换的现象。