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公开(公告)号：US20060055464A1
公开(公告)日：2006-03-16
申请号：US10535056
申请日：2003-10-28
申请人： Lukas Leyten , Jozef Bergervoet
发明人： Lukas Leyten , Jozef Bergervoet
IPC分类号： H03F3/60
摘要： The invention relates to a travelling-wave amplifier comprising amplifiers and transmission lines. The travelling-wave amplifier provides compensation for the losses of the transmission lines, amplification of the signals and isolation between input and output by coupling the amplifiers to the transmission lines anti-parallel.
摘要翻译： 本发明涉及一种包括放大器和传输线的行波放大器。 行波放大器通过将放大器与传输线路反并联耦合来提供对传输线路的损耗，信号的放大和输入和输出之间的隔离的补偿。
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公开(公告)号：US20070257737A1
公开(公告)日：2007-11-08
申请号：US11574916
申请日：2005-09-05
IPC分类号： H03B1/00
CPC分类号： H03D3/009
摘要： Devices (1) for exchanging ultra wide band signals comprise frequency translating stages (20,30) for frequency translating signals and oscillating stages (40) for supplying main inphase/quadrature oscillation signals to the frequency translating stages (20,30). By providing the oscillating stages (40) with polyphase filters (43,44) for reducing harmonics in oscillation signals, the main oscillation signals will be sufficiently clean. The oscillating stages (40) comprise mixers (46) for converting first inphase/quadrature oscillation signals and second inphase/quadrature oscillation signals into the main oscillation signals. The polyphase filters (43,44) may be located before and after the mixers (46). Frequency selectors (45) replace prior art multiplexers located after the mixers (46). Such frequency selectors (45) comprise multiplexers (126,127) for supplying the second inphase/quadrature oscillation signals, with a combination of these second oscillation signals corresponding with a positive frequency, a negative frequency or a zero frequency, and comprise coders (125) for controlling the multiplexers (126,127).
摘要翻译： 用于交换超宽带信号的装置（1）包括用于频率转换信号的频率转换级（20,30）和用于将主相位/正交振荡信号提供给频率转换级（20,30）的振荡级（40）。 通过为振荡级（40）提供多相滤波器（43,44）以减少振荡信号中的谐波，主振荡信号将足够清洁。 振荡级（40）包括用于将第一同相/正交振荡信号和第二同相/正交振荡信号转换成主振荡信号的混频器（46）。 多相过滤器（43,44）可以位于混合器（46）之前和之后。 频率选择器（45）代替位于混频器（46）之后的现有技术的多路复用器。 这种频率选择器（45）包括用于提供第二同相/正交振荡信号的多路复用器（126,127）以及与正频率，负频率或零频率对应的这些第二振荡信号的组合，并且包括编码器（125），用于 控制多路复用器（126,127）。
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公开(公告)号：US20060063504A1
公开(公告)日：2006-03-23
申请号：US10538103
申请日：2003-11-12
申请人： Jozef Bergervoet , Eduard Stikvoort
发明人： Jozef Bergervoet , Eduard Stikvoort
CPC分类号： H03D7/00
摘要： Mixer-systems for up/down-converting frequencies comprise many components: in case of balanced quadrature conversion, some parts will show a fourfold repetition (insight). By creating a three-phase mixer-system (10,40), less components will be necessary (basic idea). The sub-signals in the group of sub-signals at the sub-outputs have phase differences being present between two subsequent sub-signals within an interval of 100-140 degrees, which makes these sub-signals already (substantially) balanced. In case of said phase differences being each within an interval of 118-122 degrees, the sub-signals are even better balanced, and when being 120 degrees, the sub-signals are perfectly balanced. A group of transistors (11-13,14-16,17-19,41-43,44-46,47-49) per sub-input (1,2,3) switches and/or amplifies the sub-signals at the sub-inputs. In an active mixer-system (10), said groups of transistors (11-13,14-16,17-19) are switched by further transistors (20-22). In a passive mixer-system (40) said groups of transistors (41-49) are in dependence of the group of sub-signals at the further sub-inputs (4,5,6) switched from low/high to high/low impedance.
摘要翻译： 用于上/下转换频率的混频器系统包括许多组件：在平衡正交转换的情况下，一些部件将显示四重重复（洞察）。 通过创建三相混合器系统（10,40），将需要较少的组件（基本思想）。 子输出中的子信号组中的子信号在100-140度的间隔内的两个后续子信号之间存在相位差，这使得这些子信号已经（基本上）平衡。 在所述相位差分别在118-122度的间隔的情况下，子信号甚至更好地平衡，并且当为120度时，子信号是完美平衡的。 每个子输入（1,2,3）的一组晶体管（11-13,14-16,17,19,41-434-46,47-49）在以下方式切换和/或放大子信号： 子输入。 在有源混频器系统（10）中，所述晶体管组（11-13,14-16,17-19）由另外的晶体管（20-22）切换。 在无源混频器系统（40）中，所述晶体管组（41-49）依赖于从低/高到高/低切换的另外子输入（4,5,6）处的子信号组 阻抗。
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公开(公告)号：US20050286394A1
公开(公告)日：2005-12-29
申请号：US10531012
申请日：2003-09-19
CPC分类号： H03F1/32 , G11B7/0053 , G11B7/1263 , G11B7/13 , H03F1/3211 , H03G7/06
摘要： An electronic circuit is provided which can autonomously handle an input current (Ii) having a relatively wide dynamic range without being overdriven. The electronic circuit comprises an amplifier stage (AMPST) having an input (IP) for receiving the input current (Ii) and an output (OP) for supplying an output current (Io), such that, during operation, the strength of the output current (Io) increases in response to an increasing strength of the input current (Ii) as long as the strength of the input current (Ii) has not exceeded an input reference level. The strength of the output current (Io) is kept approximately constant when the strength of the input current (Ii) has exceeded the input reference level but has not exceeded a further input reference level. The strength of the output current (Io) decreases in response to an increasing strength of the input current (Ii) when the strength of the input current (Ii) has exceeded the further input reference level. The amplifier stage (AMPST) may comprise a current mirror (CM) having an input which forms the input (IP), an output which forms the output (OP), and a common node (cn). The amplifier stage (AMPST) further comprises first control means (FCM) having an input connected to the input (EP), and an output connected to the common node (cn). First control means (FCM) controls a current (I2) to the common node (cn) and a voltage (Vcn) at the common node (cn). The first control means (FCM) comprises limiting means (LMT) for limiting the current (I2) when the value of the input current (Ii) has exceeded the input reference level. Then both the input and the output currents (Ii and Io) are limited. In order to avoid a saturation situation of a current source (Is) which supplies a current (I) to the input (EP), the amplifier stage (AMPST) may comprise second control means (SCM) for supplying a compensation current (ICMP) to the input (IP) when the input signal (Ii) has exceeded the input reference level. The current mirror (CM) comprises first (CP1) and second (CP2) current paths which form the core of the current mirror (CM), as is generally known. The decrease in response to an increasing strength of the input current (Ii) when the strength of the input current (Ii) has exceeded the further input reference level is implemented by a third current path (CP3) which takes away current from the second current path (CP2). Optionally, to avoid that the value of the output current (Io) can become too low, a fourth current path (CP4) may be implemented which applies current to the second current path (CP2). The inventive electronic circuit may be advantageously applied in all electronic systems (like CD-apparatus) which need means to limit a maximum output signal.
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5.发明申请公开(公告)号：US20070143642A1
公开(公告)日：2007-06-21
申请号：US10529681
申请日：2003-08-18
申请人： Jozef Bergervoet
发明人： Jozef Bergervoet
IPC分类号： G06F1/00
摘要： A switched-mode control circuit (1) for a switched-mode power supply or an audio amplifier. It comprises a monitoring loop (3) for the output signal of the switched-mode circuit (2). A tuner (7) supplies the reference signal, which is related to the protected frequency or frequency band. The monitoring loop (3) comprises two quadrature mixers (4, 5) with a filter (6) in between and generates a correction signal which leads back to the switched-mode circuit (2). The corrective changes performed by the monitoring loop (3) are synchronization pulses that are added to the reference signal. This results in a shifting in time of each switching position of the switched-mode circuit (2).
摘要翻译： 一种用于开关模式电源或音频放大器的开关模式控制电路（1）。 它包括用于开关模式电路（2）的输出信号的监视回路（3）。 调谐器（7）提供与受保护的频率或频带相关的参考信号。 监控回路（3）包括两个具有滤波器（6）的正交混频器（4,5），并产生返回到开关模式电路（2）的校正信号。 由监视回路（3）执行的校正改变是加到参考信号上的同步脉冲。 这导致开关模式电路（2）的每个开关位置的时间偏移。
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