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1. 发明申请

US20030214277A1 Circuit and method for providing an output current with a prescribed temperature coefficient 审中-公开
标题翻译：用于提供具有规定温度系数的输出电流的电路和方法
公开(公告)号：US20030214277A1
公开(公告)日：2003-11-20
申请号：US10439934
申请日：2003-05-16
申请人： ATMEL Germany GmbH
发明人： Reinhard Reimann
IPC分类号： G05F003/04
CPC分类号： G05F3/265
摘要： A circuit includes two internal current sources or sinks coupled together by a coupling element, which may be a direct junction as a summing element or a current mirror as a subtracting element. In an associated method, the currents of the two internal current sinks or sources are summed or subtracted by the coupling element to form an output current. The magnitudes and/or temperature coefficients of the two internal currents differ from one another. The temperature coefficient of the output current is determined by the addition or subtraction of the internal currents, and can be selected as desired, simply and economically, by appropriately selecting the temperature coefficients of the internal currents and the adding or subtracting carried out by the coupling element. The output current can even have a negative temperature coefficient, based on economical internal components having only positive temperature coefficients.
摘要翻译：电路包括通过耦合元件耦合在一起的两个内部电流源或吸收器，其可以是作为求和元件的直接结或作为减法元件的电流镜。在相关联的方法中，两个内部电流吸收器或源的电流被耦合元件相加或相减以形成输出电流。两个内部电流的幅度和/或温度系数彼此不同。输出电流的温度系数由内部电流的加法或减法确定，可以根据需要简单，经济地选择内部电流的温度系数，通过耦合进行的加法或减法元件。基于仅具有正温度系数的经济内部部件，输出电流甚至可以具有负温度系数。

2. 发明申请

US20040233009A1 Method and apparatus for driving a direct current or voltage controlled oscillator with modulation slope feedback 有权
标题翻译：用调制斜率反馈驱动直流或压控振荡器的方法和装置
公开(公告)号：US20040233009A1
公开(公告)日：2004-11-25
申请号：US10833418
申请日：2004-04-27
申请人： ATMEL Germany GmbH
发明人： Juergen Eckert , Thorsten Fahlbusch , Burkhard Gehring , Hans-Werner Groh , Horst Haefner , Hermann Hammel , Michael Hecker , Gerald Krimmer , Reinhard Reimann , Wolfgang Roeper , Friedemann Schmidt , Juergen Schnabel , Wolfgang Schneider , Michael Vogt , Hans-Peter Waible
IPC分类号： H03B005/18
CPC分类号： H03C3/0958 , H03C3/095
摘要： A d.c. signal controlled oscillator includes a frequency-determining network having a control input and a modulation input. A phase regulating loop includes the oscillator and components that provide a control signal to the control input. A circuit apparatus for driving the oscillator includes a modulation generator that provides a modulation signal to the modulation input, and a circuit arrangement that autonomously generates a signal depending on and representing a slope of the modulation and provides this slope signal to the modulation generator, which generates the modulation signal dependent on the slope signal. A method of operating the oscillator involves switching a frequency divider successively to two different frequencies, respectively sampling and holding the two different arising control voltages, forming a difference between the two control voltages, and activating the modulation generator so that a modulation swing of the modulation signal is determined by this difference between the control voltages.
摘要翻译：一个d.c. 信号控制振荡器包括具有控制输入和调制输入的频率确定网络。相位调节回路包括振荡器和向控制输入提供控制信号的组件。用于驱动振荡器的电路装置包括：向调制输入提供调制信号的调制发生器，以及根据并表示调制斜率自主生成信号的电路装置，并将该斜率信号提供给调制发生器，根据斜率信号产生调制信号。一种操作振荡器的方法包括将分频器连续地切换到两个不同的频率，分别采样和保持两个不同的出现的控制电压，形成两个控制电压之间的差异，并激活调制发生器，使得调制的调制摆幅信号由控制电压之间的差异决定。

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