-
公开(公告)号：US4746874A
公开(公告)日：1988-05-24
申请号：US916223
申请日：1986-10-07
申请人： Gerhard Forster , Konrad Hirsch
发明人： Gerhard Forster , Konrad Hirsch
CPC分类号： H03F1/3211 , H03G3/345
摘要： In a circuit layout for signal amplification with the aid of a differential amplifier and signal coupling via a first capacitor, it is proposed, in order to prevent unacceptable operating point displacements into the non-linear area of the amplifier layout in the event of temporarily interfering high-level signals, that one input of the differential amplifier connected to the signal source via the first capacitor be connected via a first resistor, and the other input via a second resistor, jointly via an electronic switch controllable by a comparator, to reference potential. A reference voltage source is connected to one input of the comparator, and the signal source to the other input of the comparator via an RC element, whose time constant is of the same order of magnitude as the time constant formed by the first capacitor and the first resistor.
摘要翻译： 在借助于差分放大器和通过第一电容器的信号耦合的信号放大的电路布局中，提出了为了在暂时干扰的情况下防止不可接受的工作点位移到放大器布局的非线性区域 高电平信号，经由第一电容器连接到信号源的差分放大器的一个输入通过第一电阻器连接，另一个通过第二电阻器通过由比较器控制的电子开关连接到参考电位 。 参考电压源通过RC元件连接到比较器的一个输入端，信号源连接到比较器的另一个输入端，RC元件的时间常数与第一个电容器和 第一个电阻。
-
公开(公告)号：US20100052839A1
公开(公告)日：2010-03-04
申请号：US12204081
申请日：2008-09-04
申请人： Koen Mertens , Marc Tiebout , Konrad Hirsch
发明人： Koen Mertens , Marc Tiebout , Konrad Hirsch
IPC分类号： H01F27/28
CPC分类号： H01L23/5227 , H01L23/48 , H01L23/50 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： Transformers and methods of manufacture thereof are disclosed. In one embodiment, a transformer includes a semiconductor workpiece and a packaging system disposed over the semiconductor workpiece. The packaging system includes a redistribution layer. At least a portion of at least one winding of the transformer is disposed in the redistribution layer of the packaging system.
摘要翻译： 公开了变压器及其制造方法。 在一个实施例中，变压器包括半导体工件和设置在半导体工件上方的封装系统。 包装系统包括再分配层。 变压器的至少一个绕组的至少一部分设置在包装系统的再分配层中。
-
公开(公告)号：US5530391A
公开(公告)日：1996-06-25
申请号：US204492
申请日：1994-03-02
申请人： Rolf Bohme , Johann Burkhart , Johann Traub , Konrad Hirsch
发明人： Rolf Bohme , Johann Burkhart , Johann Traub , Konrad Hirsch
CPC分类号： H03H11/1208
摘要： A filter that has a resonator operated in series resonance and a two-pole terminal resonator circuit with a resonator whose electric conductance can be divided into a useful component and a parasitic component. A first differential stage actuated by a signal source and having two active elements whose ground connections are each linked to a respective current source and to a respective connection of the two-terminal resonator. A compensation circuit having two connections and which simulates the parasitic component of the resonator electric conductance is connected to a second differential stage which actuated by the signal source, is of the same type as the first differential stage, and has two active elements whose ground connections are each linked to a respective current source and to a respective connection of the compensation circuit. An evaluation circuit is linked to the two mutually reversed, i.e. connected in phase opposition, output connections of the two differential stages.
摘要翻译： 具有以串联谐振器工作的谐振器的滤波器和具有谐振器的双极端子谐振器电路，该谐振器的电导率可分为有用分量和寄生分量。 由信号源致动并具有两个有源元件的第一差分级，其接地连接各自连接到相应的电流源和两端谐振器的相应连接。 具有两个连接并且模拟谐振器电导的寄生分量的补偿电路连接到由信号源致动的第二差分级，其具有与第一差分级相同的类型，并且具有两个有源元件，其接地连接 各自连接到相应的电流源和补偿电路的相应连接。 评估电路与两个差分级的两个相互反向的，即相位相反的输出连接相连。
-
公开(公告)号：US08836424B2
公开(公告)日：2014-09-16
申请号：US13549756
申请日：2012-07-16
IPC分类号： H03G3/20
CPC分类号： H03F1/0277 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/411 , H03F2203/21136 , H03F2203/21142 , H03F2203/7215 , H03F2203/7236 , H03G3/3042
摘要： An amplifier circuit includes a gain controller, a first amplifier, and a second amplifier which is coupled in series to the first amplifier, the second amplifier comprising a plurality of amplifying units. The gain controller is configured to receive a desired gain value and provide, based on the received desired gain value, a gain adjust signal to the first amplifier, and activate, based on the received desired gain value, a certain combination of amplifying units of the plurality of amplifying units of the second amplifier, such that a combined gain of the first amplifier and the active amplifying units of the second amplifier corresponds to the received desired gain value.
摘要翻译： 放大器电路包括增益控制器，第一放大器和与第一放大器串联耦合的第二放大器，第二放大器包括多个放大单元。 增益控制器被配置为接收期望的增益值，并且基于接收到的期望增益值提供到第一放大器的增益调整信号，并且基于接收到的期望增益值，激活该第一放大器的放大单元的特定组合 多个第二放大器的放大单元，使得第一放大器和第二放大器的有源放大单元的组合增益对应于接收到的期望增益值。
-
5.发明授权Method for tuning an oscillating receiver circuit of a transponder built into a RFID system 有权调整内置于RFID系统中的应答器的振荡接收机电路的方法公开(公告)号：US06272321B1
公开(公告)日：2001-08-07
申请号：US09254866
申请日：1999-07-12
IPC分类号： H04B500
CPC分类号： G07F7/1008 , G06K7/0008 , G06K19/0723 , G06K19/0726 , G06Q20/341 , G06Q20/40975 , G11C7/1048 , G11C7/1051 , G11C11/419
摘要： The invention relates to a method for calibrating an oscillating receiver circuit of a transponder in an RFID system to resonance to the frequency of an inquiry signal transmitted by a reader, the oscillating receiver circuit comprising at least one inductive resistor and at least one capacitor. Immediately after the start of reception of the inquiry signal, capacitors are connected in increments to the capacitance of the oscillating receiver circuit until such time as the rectified, smoothed inquiry signal assumes a maximum voltage value. This active self-calibration is performed upon each initialization of the transponder but can also be addressed by having the reader send a special sequence to the transponder.
摘要翻译： 本发明涉及一种用于校准RFID系统中的应答器的振荡接收机电路的方法，以与读取器发送的询问信号的频率共振，所述振荡接收机电路包括至少一个感应电阻器和至少一个电容器。 在接收到查询信号开始之后，电容器立即以振荡接收器电路的电容为单位进行连接，直到整流平滑的查询信号呈现最大电压值为止。 这种有效的自校准是在应答器的每次初始化时执行的，但是也可以通过使读取器向转发器发送特殊的序列来解决。
-
公开(公告)号：US20140015604A1
公开(公告)日：2014-01-16
申请号：US13549756
申请日：2012-07-16
IPC分类号： H03G3/20
CPC分类号： H03F1/0277 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/411 , H03F2203/21136 , H03F2203/21142 , H03F2203/7215 , H03F2203/7236 , H03G3/3042
摘要： An amplifier circuit includes a gain controller, a first amplifier, and a second amplifier which is coupled in series to the first amplifier, the second amplifier comprising a plurality of amplifying units. The gain controller is configured to receive a desired gain value and provide, based on the received desired gain value, a gain adjust signal to the first amplifier, and activate, based on the received desired gain value, a certain combination of amplifying units of the plurality of amplifying units of the second amplifier, such that a combined gain of the first amplifier and the active amplifying units of the second amplifier corresponds to the received desired gain value
摘要翻译： 放大器电路包括增益控制器，第一放大器和与第一放大器串联耦合的第二放大器，第二放大器包括多个放大单元。 增益控制器被配置为接收期望的增益值，并且基于接收到的期望增益值提供到第一放大器的增益调整信号，并且基于接收到的期望增益值，激活该第一放大器的放大单元的特定组合 多个第二放大器的放大单元，使得第一放大器和第二放大器的有源放大单元的组合增益对应于接收的期望增益值
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.012 秒)
