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1. 发明授权

US4466013A Tapped integrated resistor 失效
标题翻译：开关集成电阻
公开(公告)号：US4466013A
公开(公告)日：1984-08-14
申请号：US525350
申请日：1983-08-22
申请人： Rudy J. van de Plassche , Eise C. Dijkmans
发明人： Rudy J. van de Plassche , Eise C. Dijkmans
IPC分类号： H01L27/04 , H01L21/822 , H01L27/08 , H01L29/8605 , H01L27/02
CPC分类号： H01L27/0802 , H01L29/8605
摘要： The invention relates to an integrated resistor formed in an epitaxial layer and provided with at least one tap. In order to reduce field effect action between the resistor and the epitaxial layer, the voltage on the two ends of the epitaxial layer underneath the resistor tracks the voltage on the two ends of the resistor. Moreover, the epitaxial layer is short-circuited by means of buried layers at the locations where the resistance layer also exhibits a short-circuit, such as underneath the contact area of the tap.
摘要翻译：本发明涉及一种形成在外延层中并具有至少一个分接头的集成电阻器。为了减小电阻和外延层之间的场效应，电阻下方的外延层两端的电压跟踪电阻两端的电压。此外，外延层通过掩埋层在电阻层也表现出短路的位置（例如在接头的接触区域下方）短路。

2. 发明授权

US4517525A Balancing compensation in differential amplifiers with a single-ended drive 失效
标题翻译：使用单端驱动器平衡补偿差分放大器
公开(公告)号：US4517525A
公开(公告)日：1985-05-14
申请号：US445334
申请日：1982-11-29
申请人： Eise C. Dijkmans , Rudy J. van de Plassche
发明人： Eise C. Dijkmans , Rudy J. van de Plassche
IPC分类号： H03F1/32 , H03F1/34 , H03F1/48 , H03F3/19 , H03F3/45 , H03F1/14
CPC分类号： H03F3/45071 , H03F1/48
摘要： A differential amplifier with single-ended drive includes a balancing impedance (20) coupled between the base of the transistor (3) connected to the signal input (1) and the common point (9) of the two emitters of the transistors (3,4), which form a differential pair. The capacitance value of the capacitor (20) is substantially equal to the capacitance value of the stray capacitance (19) of the collector-substrate junction of a transistor (10) which forms a current source. This provides a symmetry of the capacitances between the input (1) and the common point (9) and between the common point (9) and ground via the transistor (10). This results in an improved balance in the output signals at the output terminals (5,6) and a flat frequency response of the differential amplifier for higher frequencies.
摘要翻译：具有单端驱动的差分放大器包括耦合在连接到信号输入端（1）的晶体管（3）的基极和晶体管（3）的两个发射极的公共点（9）之间的平衡阻抗（20） 4），其形成差分对。电容器（20）的电容值基本上等于形成电流源的晶体管（10）的集电极 - 衬底结的杂散电容（19）的电容值。这提供了通过晶体管（10）在输入（1）和公共点（9）之间以及公共点（9）和接地之间的电容的对称性。这导致在输出端子（5,6）处的输出信号的平衡得到改善，以及用于较高频率的差分放大器的平坦的频率响应。

3. 发明授权

US4280089A Automatic incrementing attenuation arrangement 失效
标题翻译：自动递增衰减布置
公开(公告)号：US4280089A
公开(公告)日：1981-07-21
申请号：US088734
申请日：1979-10-26
申请人： Rudy J. van de Plassche , Eise C. Dijkmans
发明人： Rudy J. van de Plassche , Eise C. Dijkmans
IPC分类号： G01R1/20 , H03G1/00 , H03H7/24 , H03H7/25 , H03H11/24 , G05F3/08
CPC分类号： G01R1/203 , H03G1/0088 , H03H11/24 , H03H7/24 , H03H7/25
摘要： Attenuation arrangement comprising a step attenuator arranged in cascade with a controllable voltage divider via first and second voltage terminals, the step attenuator comprising a series arrangement of attenuation elements for dividing a voltage applied across said series arrangement into a plurality of voltage increments, which voltage increments are individually switchable between the two voltage terminals for varying the output voltage of the controllable voltage divider for the voltage range of the relevant voltage element, the direction of the polarity of the voltage between the two voltage terminals changing at a switch-over from one voltage increment to an adjacent voltage increment.
摘要翻译：衰减布置包括通过第一和第二电压端子与可控分压器级联布置的步进衰减器，所述阶梯衰减器包括用于将施加在所述串联装置上的电压分成多个电压增量的衰减元件的串联布置，所述电压增量可以在两个电压端子之间单独切换，用于在相关电压元件的电压范围内改变可控分压器的输出电压，两个电压端子之间的电压的极性方向从一个电压切换增加到相邻的电压增量。

4. 发明授权

US4490714A Digital-to-analog converter for bipolar signals 失效
标题翻译：用于双极性信号的数模转换器
公开(公告)号：US4490714A
公开(公告)日：1984-12-25
申请号：US576988
申请日：1984-02-06
申请人： Rudy J. van de Plassche , Eise C. Dijkmans
发明人： Rudy J. van de Plassche , Eise C. Dijkmans
IPC分类号： H03M1/80 , H03M1/00 , H03K13/02
CPC分类号： H03M1/0607
摘要： In a digital-to-analog converter for bipolar signals all the bits change when the signals pass through the zero level. This results in a poor signal-to-noise ratio owing the small signal and the large noise contribution by the switching transients. The invention proposes to add a digital number to or subtract it from the digital input signal as an offset. As a result of this, the switching point is shifted towards a higher amplitude, which improves the signal-to-noise ratio and the distortion in the case of digital audio signals.
摘要翻译：在双极性信号的数模转换器中，当信号通过零电平时，所有位都会发生变化。这导致由于小信号和由开关瞬变引起的大的噪声贡献而导致的较差的信噪比。本发明提出将数字数字作为偏移量从数字输入信号中加或减。结果，切换点向较高幅度移动，这提高了数字音频信号的信噪比和失真。

5. 发明授权

US4509020A Push-pull amplifier 失效
标题翻译：推挽放大器
公开(公告)号：US4509020A
公开(公告)日：1985-04-02
申请号：US529892
申请日：1983-09-07
申请人： Rudy J. van de Plassche , Eise C. Dijkmans
发明人： Rudy J. van de Plassche , Eise C. Dijkmans
IPC分类号： H03F3/20 , H03F3/30 , H03F3/26
CPC分类号： H03F3/3088
摘要： For a satisfactory cross-over behavior of the transistors T.sub.1 and T.sub.2 of push-pull amplifier comprising an input 2 and an output 3, it is necessary that the sum of the base-emitter voltages of the transistors T.sub.1 and T.sub.2 remains substantially constant. For this purpose a first voltage-current converter 5 is coupled between the base and the emitter of transistor T.sub.1, the inverting input of this converter being coupled to the base of transistor T.sub.1 via a first reference-voltage source 8 and the non-inverting input to the emitter of transistor T.sub.1. Similarly, a second voltage-current converter 9 and a second reference-voltage source 12 are arranged between the base and the emitter of transistor T.sub.2. The output currents of the first and the second voltage-current converters 5 and 9 are compared with each other in the combining circuit 14 which drives the control amplifier 15, which in its turn controls the base-emitter voltage of transistor T.sub.2 in such a way that the sum of the base-emitter voltages of transistor T.sub.1 and T.sub.2 remains constant. The push-pull amplifier exhibits a minimal amount of second-harmonic distortion, because only the difference of the errors introduced by the first and the second voltage-current converters 5 and 9 is of importance in this respect and these errors are substantially equal to each other due to the method of fabrication of the voltage-current converters.
摘要翻译：为了使包括输入2和输出3的推挽放大器的晶体管T1和T2的令人满意的交叉行为，晶体管T1和T2的基极 - 发射极之和的总和必须保持基本恒定。为此，第一电压 - 电流转换器5耦合在晶体管T1的基极和发射极之间，该转换器的反相输入经由第一参考电压源8和非反相输入端耦合到晶体管T1的基极到晶体管T1的发射极。类似地，第二电压 - 电流转换器9和第二参考电压源12被布置在晶体管T2的基极和发射极之间。在驱动控制放大器15的组合电路14中比较第一和第二电压 - 电流转换器5和9的输出电流，控制放大器15又以这种方式控制晶体管T2的基极 - 发射极电压晶体管T1和T2的基极 - 发射极电压之和保持恒定。推挽放大器表现出最小量的二次谐波失真，因为仅在第一和第二电压 - 电流转换器5和9引入的误差的差异在这方面是重要的，并且这些误差基本上等于每个其他由于电压 - 电流转换器的制造方法。

6. 发明授权

US4446419A Current stabilizing arrangement 失效
标题翻译：目前的稳定安排
公开(公告)号：US4446419A
公开(公告)日：1984-05-01
申请号：US399170
申请日：1982-07-19
申请人： Rudy J. van de Plassche , Eise C. Dijkmans , Hendrikus J. Schouwenaars
发明人： Rudy J. van de Plassche , Eise C. Dijkmans , Hendrikus J. Schouwenaars
IPC分类号： G05F1/56 , G05F3/30 , G05F3/20
CPC分类号： G05F3/30 , Y10S323/907
摘要： In a known current source arrangement which generates a current whose temperature coefficient is only equal to zero at one specific temperature, steps are taken, in accordance with the invention, to render the generated current independent of the temperature over a wide temperature range by compensation of the disturbing factor in the relationship between the generated current and the temperature.
摘要翻译：在已知的电流源装置中，其在一个特定温度下产生温度系数仅等于零的电流，根据本发明，采取步骤，通过补偿在宽的温度范围内使发电电流与温度无关产生电流与温度之间关系的干扰因素。

7. 发明授权

US4555676A Dual-section amplifier arrangement having a protection circuit 失效
标题翻译：具有保护电路的双段放大器装置
公开(公告)号：US4555676A
公开(公告)日：1985-11-26
申请号：US569648
申请日：1984-01-10
申请人： Rudy J. van de Plassche , Eise C. Dijkmans
发明人： Rudy J. van de Plassche , Eise C. Dijkmans
IPC分类号： H03F1/08 , H03F1/42 , H03F1/52 , H03F1/34 , H02H7/20
CPC分类号： H03F1/52 , H03F1/083
摘要： An amplifier arrangement includes a first section and a second section. The second section has an output transistor which is protected by a protection circuit. The protection circuit acts on the input of the second section in order to obtain a higher gain in the protection loop. In order to preclude instabilities, the protection circuit has a falling frequency response with a flat portion in view of the frequency compensation of the second section.
摘要翻译：放大器装置包括第一部分和第二部分。第二部分具有由保护电路保护的输出晶体管。保护电路作用于第二部分的输入，以便在保护回路中获得更高的增益。为了排除不稳定性，鉴于第二部分的频率补偿，保护电路具有具有平坦部分的频率响应下降。

8. 发明授权

US4439739A Circuit arrangement with electronically controllable transfer characteristic 失效
标题翻译：具有电子可控传输特性的电路布置
公开(公告)号：US4439739A
公开(公告)日：1984-03-27
申请号：US320376
申请日：1981-11-12
申请人： Ernst A. Kilian , Wilhelm Graffenberger , Eise C. Dijkmans , Rudy J. van de Plassche
发明人： Ernst A. Kilian , Wilhelm Graffenberger , Eise C. Dijkmans , Rudy J. van de Plassche
IPC分类号： H03G3/00 , H03G5/00 , H03G5/04
CPC分类号： H03G5/04 , H03G3/001 , H03G5/00
摘要： A low-noise bass-control device, which is digitally controllable in a simple manner, comprises an amplifier having an output connected to the series arrangement of a capacitor and a tapped resistor chain. The taps on said resistor chain are connected to an inverting input of the amplifier via a first switch and to the output of the control device via a second switch.
摘要翻译：以简单的方式可数字控制的低噪声低音控制装置包括具有连接到电容器和抽头电阻器链的串联布置的输出的放大器。所述电阻链上的抽头通过第一开关连接到放大器的反相输入端，并通过第二开关连接到控制装置的输出端。

9. 发明授权

US4405902A Push-pull output stage 失效
标题翻译：推挽输出级
公开(公告)号：US4405902A
公开(公告)日：1983-09-20
申请号：US256364
申请日：1981-04-22
申请人： Rudy J. van de Plassche , Eise C. Dijkmans
发明人： Rudy J. van de Plassche , Eise C. Dijkmans
IPC分类号： H03F3/20 , H03F3/30
CPC分类号： H03F3/3088
摘要： The invention provides an improved class-B push-pull output stage comprising a first and a second output transistor of a first conductivity type, which stage is provided with a control loop for driving the second transistor in phase opposition as a function of the drive of the first transistor. Said control loop is adapted so that a stable quiescent-current setting is obtained and that the effect of poor high-frequency properties of a third transistor of a conductivity type opposite to the first conductivity type, which transistor is necessarily included in the control loop, is eliminated, so that a wide frequency range is obtained.
摘要翻译：本发明提供了一种改进的B类推挽输出级，其包括第一和第二输出晶体管，其具有第一导电类型的第一和第二输出晶体管，所述第一和第二输出晶体管具有第一导电类型的第一和第二输出晶体管，第一个晶体管。所述控制回路适于使得获得稳定的静态电流设置，并且与控制回路中必须包括该晶体管的第一导电类型相反的导电类型的第三晶体管的差的高频特性的影响，被消除，从而获得宽的频率范围。

10. 发明授权

US4317128A Two transistor switch 失效
标题翻译：两个晶体管开关
公开(公告)号：US4317128A
公开(公告)日：1982-02-23
申请号：US135943
申请日：1980-03-31
申请人： Eise C. Dijkmans , Rudy J. van de Plassche
发明人： Eise C. Dijkmans , Rudy J. van de Plassche
IPC分类号： H01L21/822 , H01L21/331 , H01L21/8222 , H01L27/04 , H01L27/082 , H01L29/73 , H03K17/04 , H03K17/0412 , H03K17/12 , H01L27/06
CPC分类号： H03K17/04126 , H01L27/0825 , H03K17/12
摘要： A Darlington transistor switch with a first and a second transistor, in which the base electrode of the first transistor is connected to the emitter electrode of the second transistor. In order to increase the switching speed of the device, the base-emitter capacitance of the second transistor relative to the base-emitter capacitance of the first transistor is increased so that voltage variations on the base of the second transistor with respect to the emitter of the first transistor are uniformly distributed over the base-emitter junctions of the two transistors.
摘要翻译：具有第一和第二晶体管的达林顿晶体管开关，其中第一晶体管的基极连接到第二晶体管的发射极。为了增加器件的开关速度，第二晶体管的基极 - 发射极电容相对于第一晶体管的基极 - 发射极电容增加，使得第二晶体管的基极上相对于发射极的发射极的电压变化第一晶体管均匀分布在两个晶体管的基极 - 发射极结之间。

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