公开(公告)号：US06816024B2

公开(公告)日：2004-11-09

申请号：US10718776

申请日：2003-11-21

申请人： Klaus-Jürgen Feilkas ,  Hans Geltinger ,  Pedro Jose Moreira

发明人： Klaus-Jürgen Feilkas ,  Hans Geltinger ,  Pedro Jose Moreira

IPC分类号： H03L500

CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/124

摘要： An oscillator circuit is specified, having an LC resonator, to which two or more current paths are connected, which are connected in parallel with one another and can be connected and disconnected individually by switches. The attenuation compensation amplifiers are in this case coupled to the resonant circuit in order to compensate for its attenuation. The oscillator circuit allows the gradient of the compensation for the attenuation of the resonant circuit to be adjusted, without moving the operating point of the amplifiers. This makes it possible to compensate for manufacturing-dependent component tolerances and any amplitude discrepancy caused by them, in a simple way. The oscillator circuit is suitable, for example, for use in voltage-controlled oscillators in order to form phase-locked loops when using mass production technologies.

公开(公告)号：US06853262B2

公开(公告)日：2005-02-08

申请号：US10724904

申请日：2003-12-01

申请人： Klaus-Jürgen Feilkas ,  Hans Geltinger ,  Jose Pedro Moreira

发明人： Klaus-Jürgen Feilkas ,  Hans Geltinger ,  Jose Pedro Moreira

IPC分类号： H03B5/04 ,  H03B5/12 ,  H03B5/00

CPC分类号： H03B5/04 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243

摘要： A voltage-controlled oscillator circuit compensates for supply voltage fluctuations of the oscillator and thus for frequency fluctuations at the oscillator output. An additional voltage-controlled capacitor is connected in parallel with the voltage-controlled capacitor of the LC resonant circuit. The control terminal of the second voltage-controlled capacitor is coupled to the supply voltage terminal, which feeds the oscillator circuit. The oscillator circuit can be monolithically integrated and can be employed in phase-locked loops, for example.

摘要翻译： 压控振荡器电路补偿振荡器的电源电压波动，从而补偿振荡器输出端的频率波动。 附加的压控电容器与LC谐振电路的压控电容器并联连接。 第二压控电容器的控制端子耦合到供电电压端子，该端子馈送振荡电路。 振荡器电路可以是单片集成的，例如可用于锁相环。

公开(公告)号：US08154356B2

公开(公告)日：2012-04-10

申请号：US12642800

申请日：2009-12-19

申请人： Hans Geltinger ,  Thomas Gustedt ,  Andreas Roithmeier ,  Thomas Mayer

发明人： Hans Geltinger ,  Thomas Gustedt ,  Andreas Roithmeier ,  Thomas Mayer

IPC分类号： H03B5/08 ,  H03B5/12 ,  H03L7/099

CPC分类号： H03L7/099 ,  H03B5/1265 ,  H03J2200/10

摘要： An oscillator is provided which comprises an array of capacitances. At least some capacitances in the array have different capacitance values.

摘要翻译： 提供了包括电容阵列的振荡器。 阵列中的至少一些电容具有不同的电容值。