公开(公告)号：US6133767A

公开(公告)日：2000-10-17

申请号：US558670

申请日：1995-11-16

Applicant: Knut Caesar ,  Norbert Greitschus

Inventor： Knut Caesar ,  Norbert Greitschus

IPC: H03M1/12 ,  H03K5/02 ,  H03K17/16 ,  H03K17/687 ,  H03K19/003 ,  H03K19/0185 ,  H03K3/00

CPC classification number: H03K19/00384 ,  H03K19/018585 ,  H03K5/02

Abstract: An integrated driver circuit for driving different capacitive loads, which includes a setting element. The setting element develops a setting signal S for a given numerical measure signal M. The numerical measure signal M is developed by an input device, which is coupled to the setting element. The numerical measure signal M corresponds to one of the different capacitive loads which is driven by the driver circuit. Coupled to the setting element is an output stage, which provides an output current that corresponds to the setting signal S.

Abstract translation: 一种用于驱动不同容性负载的集成驱动电路，其包括设定元件。 设定元件对于给定的数字测量信号M产生设定信号S.数字测量信号M由耦合到设定元件的输入设备展开。 数字测量信号M对应于由驱动器电路驱动的不同容性负载之一。 耦合到设置元件是输出级，其提供对应于设置信号S的输出电流。

公开(公告)号：US5805029A

公开(公告)日：1998-09-08

申请号：US861605

申请日：1997-05-22

Applicant: Ulrich Theus ,  Norbert Greitschus

Inventor： Ulrich Theus ,  Norbert Greitschus

IPC: H03B1/00 ,  H03B5/36 ,  H03L7/099

CPC classification number: H03B5/364 ,  H03B2201/0266

Abstract: The invention relates to a digitally adjustable crystal oscillator having a quartz crystal and a monolithic integrated oscillator circuit including a series combination of a first frequency-adjusting capacitor C1 and a second frequency-adjusting capacitor C2 connected in parallel with the quartz crystal and comprising parallel-connected first capacitance stages and parallel-connected second capacitance stages, respectively, and an inverter circuit connected in parallel with the quartz crystal and comprising a feedback resistor R.sub.K, the output of the innverter circuit being connected to a load resistor. The inverter circuit comprises parallel-connected inverter stages, and switching elements are provided within the inverter stages and cqapacitor stages in such a way that a respective one of the inverter stages as well as a first capacitance stage C.sub.1i and a second capacitance stage C.sub.2i are switchable into or out of circuit by means of a control signal I.sub.i.

Abstract translation: 本发明涉及具有石英晶体和单片集成振荡电路的数字可调晶体振荡器，它包括与石英晶体并联连接的第一调频电容器C1和第二调频电容器C2的串联组合， 连接的第一电容级和并联的第二电容级，以及与石英晶体并联连接并包括反馈电阻器RK的逆变器电路，该变流器电路的输出连接到负载电阻器。 逆变器电路包括并联逆变级，并且在逆变器级和cqapitor级中设置开关元件，使得各个反相器级以及第一电容级C1i和第二电容级C2i可切换 通过控制信号Ii进入或断开电路。