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    • 3. 发明授权
    • High-frequency generator with automatic power-control for high-frequency
surgery
    • 高频发生器具有自动功率控制功能,适用于高频手术
    • US4818954A
    • 1989-04-04
    • US11781
    • 1987-02-06
    • Gerhard FlacheneckerKarl FastenmeierHeinz Lindenmeier
    • Gerhard FlacheneckerKarl FastenmeierHeinz Lindenmeier
    • A61B18/12H03L5/02A61B17/36
    • H03L5/02A61B18/1206A61B2018/00702A61B2018/00857A61B2018/00869
    • A high-frequency generator having automatic power-control for use in high-frequency surgery. The frequency of a high-frequency generator is adjustable by electronic circuit brought by a control circuit to a value such that at the output of the power amplifier there is an optimal phase relation between output voltage and output current, i.e., generally a phase shift of zero. The signal necessary for the control of the output power is obtained from harmonic oscillations generated by the arc at the surgical probe. A harmonic-measuring device to obtain the harmonic oscillations generated by the arc at the surgical probe has a phase-controlled rectifier which is controlled by the oscillator of the high-frequency generator. A simple filter is used at the output of the power amplifier, and the measurement filter used before the harmonic-measuring device can either be completely eliminated or need only be very simple in construction. No complicated filter adjustment is necessary and the power generator operates under optimal conditions and exhibits enhanced operating reliability.
    • 具有自动功率控制功能的高频发生器,用于高频手术。 高频发生器的频率可以通过由控制电路带来的电子电路来调节,使得在功率放大器的输出处存在输出电压和输出电流之间的最佳相位关系,即通常是相位偏移 零。 用于控制输出功率所需的信号由外科手术探针上的电弧产生的谐波振荡获得。 用于获得手术探针上的电弧产生的谐波振荡的谐波测量装置具有由高频发生器的振荡器控制的相控整流器。 在功率放大器的输出端使用简​​单的滤波器,在谐波测量装置之前使用的测量滤波器可以完全消除,或者只需要非常简单的结构。 不需要复杂的滤波器调节,并且发电机在最佳条件下运行并且表现出增强的操作可靠性。
    • 4. 发明授权
    • Feedback-coupled high-frequency power oscillator
    • 反馈耦合高频功率振荡器
    • US4922210A
    • 1990-05-01
    • US381492
    • 1989-07-18
    • Gerhard FlacheneckerKarl FastenmeierHeinz Lindenmeier
    • Gerhard FlacheneckerKarl FastenmeierHeinz Lindenmeier
    • H03B5/08
    • H03B5/08
    • A high-frequency power oscillator is built around a power amplifier utilizing semiconductors in a complementary or quasi-complementary stage which operate in a switching mode of operation. The output of the amplifier supplies high-frequency oscillations to a load impedance through an output filter composed of a series-resonant circuit and a parallel-resonant circuit. A feedback driving voltage is obtained from the output filter in a manner providing a first portion of the driving voltage from a voltage present in the parallel-resonant circuit for voltage feedback and a second portion of the driving voltage obtained by current inverse feedback from the current in the series-resonant circuit. These two components of the driving voltage are combined in an addition circuit and supplied to an input of the power amplifier through a pulse modification stage. In the case of high load impedances the operating frequency is as close as possible to the resonant frequency of the parallel resonant circuit and the superimposed current inverse feedback prevents the provision of an operating frequency that would approach the resonant frequency of the series-resonant circuit even when the losses in the series-resonant circuit are small. The ability to use a low-loss series-resonant circuit makes possible increased operation reliability, safety and efficiency.
    • 在功率放大器周围构建高频功率振荡器,利用在开关操作模式下工作的互补或准互补级的半导体。 放大器的输出通过由串联谐振电路和并联谐振电路组成的输出滤波器将高频振荡提供给负载阻抗。 从输出滤波器以从存在于并联谐振电路中的电压提供驱动电压的第一部分用于电压反馈的方式从输出滤波器获得反馈驱动电压,以及通过来自电流的电流反向反馈获得的驱动电压的第二部分 在串联谐振电路中。 驱动电压的这两个分量在加法电路中组合并通过脉冲修改级提供给功率放大器的输入端。 在高负载阻抗的情况下,工作频率尽可能接近并联谐振电路的谐振频率,并且叠加的电流反向反馈防止提供即将接近串联谐振电路的谐振频率的工作频率 当串联谐振电路的损耗小时。 使用低损耗串联谐振电路的能力可以提高操作的可靠性,安全性和效率。
    • 7. 发明授权
    • Self oscillating power stage for inverted rectifier power supply
    • 用于逆变整流器电源的自振荡电源
    • US5062031A
    • 1991-10-29
    • US450855
    • 1989-12-14
    • Gerhard FlacheneckerKarl FastenmeierHeinz Lindenmeier
    • Gerhard FlacheneckerKarl FastenmeierHeinz Lindenmeier
    • H02M3/155H02M3/10H02M3/28
    • H02M3/10
    • A self-oscillating inverted rectifier has a series-resonant circuit connected between a load and the selector terminal of an electronically controllable switch, the other terminals of which are connected respectively to d.c. sources of different potential. Phase detection and feedback circuits provide a rectangular control wave for connecting and disconnecting the resonant circuit to each d.c. source only at null transits of the current in the resonant circuit. The feedback circuit includes a control circuit supplied with a regulation voltage, which may be derived from the load, whereby the switch is intermittently prevented from connecting the resonant circuit to energizing d.c. for an integral number of half cycles of the resonant frequency. The load may be a high-frequency electrosurgical device or, more generally, a rectifier circuit providing accurately regulated d.c. power to a variable load.
    • 自振荡反相整流器具有连接在负载和电子可控开关的选择器端子之间的串联谐振电路,其另一端分别连接到直流电。 不同潜力的来源 相位检测和反馈电路提供矩形控制波,用于将谐振电路连接和断开至每个直流。 仅在谐振电路中的电流的零转换时才产生。 反馈电路包括一个控制电路,该控制电路被提供有可从负载导出的调节电压,由此间歇地防止开关将谐振电路连接到通电直流。 对于谐振频率的半个周期的整数。 负载可以是高频电外科装置,或更一般地,提供精确调节的直流电的整流电路。 功率到可变负载。
    • 8. 发明授权
    • High frequency generator for use with loads subject to great impedance
variations
    • 高频发生器用于承受很大阻抗变化的负载
    • US4890073A
    • 1989-12-26
    • US314413
    • 1989-02-22
    • Gerhard FlacheneckerKarl FastenmeierHeinz Lindenmeier
    • Gerhard FlacheneckerKarl FastenmeierHeinz Lindenmeier
    • G05F1/66G05F1/00G05F1/10G05F1/44H03B5/08H03L5/00H05B6/10
    • H03L5/00H03B5/08
    • A power amplifier driven in the switching mode is started into oscillation by a pulse from an auxiliary oscillator when it is first activated. Reactive currents thereby resulting in an output filter network, containing a series resonant circuit followed by a parallel resonant circuit which is connected across a load impedance, then produce the switching in of a feedback circuit, after which the amplifier oscillates in a self-excited mode, at a frequency determined by the tuning of the resonant circuits. Branch circuits connected to the output filter network determine whether the load impedance is above or below the characteristic impedance value, which is a function of the inductance in the series resonant circuit and the capacitance in the parallel resonant circuit, and control an electronic switch which enables current-driven feedback when the load impedance is below the characteristic value and enables voltage feedback when the load impedance is above the characteristic value, thus providing the more stable type of feedback consistently, even though the load may fluctuate greatly. The electronic switch preferably operates with some hysteresis. This high frequency power oscillator adjusts itself automatically to mistuning of the output filter network as well as to large fluctuations of load impedance. The loss power in the amplifying elements of the power amplifier is very low and the efficiency very high.
    • 在开关模式下驱动的功率放大器首次被激活时,由来自辅助振荡器的脉冲开始振荡。 无功电流由此导致输出滤波器网络,其中包含串联谐振电路,其后是并联谐振电路,并联谐振电路跨越负载阻抗,然后产生反馈电路的开关,之后放大器以自激模式振荡 ,以由谐振电路的调谐确定的频率。 连接到输出滤波器网络的分支电路确定负载阻抗是高于或低于特征阻抗值,其是串联谐振电路中的电感和并联谐振电路中的电容的函数,并且控制使能 负载阻抗低于特性值时的电流驱动反馈,并且当负载阻抗高于特性值时启用电压反馈,因此即使负载可能大幅波动,也能提供更稳定的反馈类型。 电子开关优选地具有一些滞后。 这个高频功率振荡器自动调整自动失调输出滤波器网络以及大的负载阻抗波动。 功率放大器的放大元件的损耗功率非常低,效率非常高。
    • 9. 发明授权
    • Multiple-transmission-channel active antenna arrangement
    • 多传输通道有源天线装置
    • US3942119A
    • 1976-03-02
    • US446533
    • 1974-02-27
    • Hans Heinrich MeinkeHeinz LindenmeierFritz LandstorferGerhard Flachenecker
    • Hans Heinrich MeinkeHeinz LindenmeierFritz LandstorferGerhard Flachenecker
    • H03H7/46H01Q1/00H03H11/34H04B1/18H01Q1/50
    • H03H11/346
    • An antenna has two output terminals and is operative for receiving electromagnetic radiation and converting the same into electrical signals appearing across the two antenna output terminals. There are provided a first and a second transmission channel, each having a respective input comprised of a pair of input terminals, and respectively operative for transmitting electrical signals having frequencies lying in a predetermined first frequency range and in a predetermined higher second frequency range, one of the input terminals of the first channel being connected to one of the two antenna output terminals. A transformer includes a primary winding connecting the other of the input terminals of the first channel to the other of the two antenna output terminals. The transformer further includes a secondary winding connected across the two input terminals of the second transmission channel. The transformer is operative when the frequency of the electrical signal across the antenna output terminals is in the aforementioned first range for stepping down the input impedance of the second channel as reflected into the circuit of the primary winding to a value lower than the value of the input impedance of said first transmission channel at such frequency.
    • 天线具有两个输出端子,并且用于接收电磁辐射并将其转换成跨越两个天线输出端子出现的电信号。 提供了第一和第二传输信道,每个传输信道具有包括一对输入端的相应输入,并且分别用于发送具有处于预定的第一频率范围和预定的较高的第二频率范围的频率的电信号,一个 的第一通道的输入端子连接到两个天线输出端子之一。 变压器包括将第一通道的另一个输入端子连接到两个天线输出端子中的另一个的初级绕组。 变压器还包括连接在第二传输通道的两个输入端上的次级绕组。 当跨越天线输出端子的电信号的频率处于上述第一范围内时,变压器工作,以将第一通道的电路中反射的第二通道的输入阻抗降低到低于 在这种频率下所述第一传输信道的输入阻抗。
    • 10. 发明授权
    • Detector for indicating frequency deviation peaks
    • 用于指示频率偏差峰值的检测器
    • US4653116A
    • 1987-03-24
    • US693800
    • 1985-01-23
    • Heinz LindenmeierErnst MannerGerhard Flachenecker
    • Heinz LindenmeierErnst MannerGerhard Flachenecker
    • H03D3/00H04B1/10H04B17/00
    • H04B1/1027H03D3/00
    • A detector for indicating reception disturbances during ultrashort wave broadcast reception by demodulating of intermediate frequency signals has a frequency modulated demodulator with a demodulation characteristic line formed so that a controlling region within which the output signal increases with increasing frequency deviation from a carrier frequency extends advantageously over the entire band width of the ultrashort wave intermediate frequency channel and is significantly greater than the maximum frequency deviation of the intermediate frequency carrier modulated with the basic band signal in the frequency, and the output signal of the frequency demodulator is supplied to an evaluating circuit at whose output the exceeding of a predetermined frequency disturbance deviation threshold is indicated by a logic signal.
    • 用于通过解调中频信号来指示在超短波广播接收期间的接收干扰的检测器具有频率调制解调器,其具有形成的解调特性线,使得其中输出信号随着与载波频率偏差的增加而增加的控制区域有利地超过 超短波中频通道的整个带宽,并且明显大于用频率中的基本频带信号调制的中频载波的最大频率偏差,并且频率解调器的输出信号被提供给评估电路 其输出超过预定频率干扰偏差阈值由逻辑信号指示。