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31. 发明授权

US3893019A Variable power control adapter 失效
标题翻译：可变功率控制适配器
公开(公告)号：US3893019A
公开(公告)日：1975-07-01
申请号：US16194571
申请日：1971-07-09
申请人： TEXAS INSTRUMENTS INC
发明人： KING JOHN A , BROWN DONALD L
IPC分类号： G05F1/445 , H05B39/08 , G05F3/04 , H05B39/04
CPC分类号： H05B39/08 , G05F1/445 , Y10S323/905
摘要： A power control adapter, which may be removably threadably disposed within a conventional electric lamp socket, connected to a source of electrical power. The adapter includes a housing, which extends integrally from the base member and supports an electrical socket, adapted to receive a load such as an incandescent electric light bulb. A power control circuit is carried within the housing, and provides selectively variable electrical communication between the load and the source of electrical power through the electric lamp socket. The electrical control circuit includes an externally adjustable potentiometer for varying the power level supplied to the load.
摘要翻译：电源控制适配器，其可拆卸地螺纹地设置在传统电灯插座内，连接到电源。适配器包括壳体，其从基座构件一体地延伸并且支撑适于接收负载（例如白炽电灯泡）的电插座。电源控制电路承载在壳体内，并通过电灯插座提供负载和电源之间的选择性可变电气通信。电气控制电路包括用于改变提供给负载的功率电平的可外部调节的电位计。

32. 发明授权

US3859591A Soft turn-on power switching circuit 失效
标题翻译：软开关电源开关电路
公开(公告)号：US3859591A
公开(公告)日：1975-01-07
申请号：US37555073
申请日：1973-07-02
申请人： DISPLAY ENTERPRISES INC
发明人： SAUNDERS NORMAN B
IPC分类号： G05F1/445 , H03K17/13 , G05F1/44
CPC分类号： H03K17/136 , G05F1/445
摘要： A triac is turned on during each successive half wave of AC in response to zero-crossing signals which generate a composite ramp voltage, including short sawtooth and long ramp voltages, which provides triggering signals after a predetermined threshold is exceeded. When the composite wave is continuously above the threshold, a zero-crossing switch is activated to bypass the AC signal around the soft turn-on part of the circuit, directly into the gate of the triac, to apply all of the AC power to the load after the soft turn-on has been accomplished. A circuit reset component has an input connected to the zero-crossing detector and its output connected to the generators for discharging the generators to their starting condition any time the AC power wave is interrupted, thus insuring soft turn-on even after momentary power interruptions. A regenerative pulse amplifier and a current amplifier are connected between the threshold detector and the triac for generating a triggering signal pulse for the triac and feeding back part of the threshold breaking pulse back into the threshold detector to reinforce it. The circuit can also perform a servo function by connecting an external signal to the circuit reset switch for limiting the level to which the long ramp generator ramp-shaped voltage wave can grow to below the predetermined threshold level whereby the period of operation of the triac is controlled in response to an applied external signal.
摘要翻译：响应于产生包括短锯齿波和长斜坡电压的复合斜坡电压的过零信号，在AC的每个连续半波期间三端双向可控硅开关导通，其在超过预定阈值之后提供触发信号。当复合波持续高于阈值时，过零开关被激活以绕过电路的软导通部分周围的AC信号直接进入三端双向可控硅开关的栅极，将所有的交流电源施加到软启动后的负载已经完成。电路复位组件具有连接到过零检测器的输入端，其输出连接到发电机，用于在发生交流电源中断时将发电机排放到起动状态，从而即使在瞬间断电之后也能保证软启动。再生脉冲放大器和电流放大器连接在阈值检测器和三端双向可控硅开关元件之间，用于产生用于三端双向可控硅开关元件的触发信号脉冲，并将阈值断开脉冲的一部分反馈回阈值检测器以加强该阈值检测器。电路还可以通过将外部信号连接到电路复位开关来执行伺服功能，以限制长斜坡发生器斜坡形电压波可以增长到低于预定阈值水平的水平，从而三端双向可控硅开关元件的工作周期为受控于外部应用的信号。

33. 发明授权

US3840800A Current control device 失效
标题翻译：电流控制装置
公开(公告)号：US3840800A
公开(公告)日：1974-10-08
申请号：US31090272
申请日：1972-11-30
申请人： NOVANEX AUTOMATION NV
发明人： LAUPMAN R
IPC分类号： G05F1/10 , G05F1/445 , G05F1/455 , H02M1/084 , G05F3/04
CPC分类号： H02M1/084 , G05F1/445 , G05F1/455
摘要： A circuit arrangement for controlling an alternating current through a load in response to a control signal applied to its input terminals is provided with an improved organization of a firing circuit arrangement which in its simplest form comprises only two transistors. With a suitable dimensioning of the resistors and capacitors associated with two transistors, highly equivalent voltage waveforms of opposite polarity can be produced during successive half cycles in response to the control signal provided from an asymmetric signal source to fire a semiconductor switch element through its gate control terminal in dependence on that control signal.

34. 发明授权

US3818112A Electrical furnace for melting glass 失效
标题翻译：用于熔化玻璃的电炉
公开(公告)号：US3818112A
公开(公告)日：1974-06-18
申请号：US35587773
申请日：1973-04-30
申请人： CORHART REFRACTORIES CO
发明人： SNOOK C , CLISHEM T , DUERR F
IPC分类号： C03B5/027 , G05F1/445 , G05F1/455 , H05B3/00 , C03B5/02
CPC分类号： C03B5/1677 , C03B5/027 , G05F1/445 , G05F1/455 , H05B3/0023 , Y10S65/04
摘要： An electrical furnace particularly suitable for melting thermoplastic material used in producing glass fibers includes a tank having side walls constructed of a refractory material having an electrical conductivity greater than the material being melted at furnace melting temperature. In order to minimize electrical conduction through the side walls, first and second sets of electrodes are arranged with one set centrally disposed in the tank and the other set surrounding the first. Electric power is applied between the first and second electrodes to generate a potential field with substantially continuous equipotential lines between the second electrodes so as to shield the first electrodes from the side walls. An electrical control circuit limits the current flow between any two electrodes to prevent a runaway condition which might otherwise be caused by the steep negative temperature-resistivity characteristics of the glass. The control circuit includes a circuit which minimizes the DC component from current flow between the electrodes.
摘要翻译：特别适用于熔融生产玻璃纤维的热塑性材料的电熔炉包括一个槽，该槽具有由熔化温度高于熔化材料的导电率的耐火材料构成的侧壁。为了最小化通过侧壁的电传导，第一组和第二组电极被布置成一组集中设置在容器中，另一组围绕第一组设置。在第一和第二电极之间施加电力以产生在第二电极之间具有基本上连续的等电位线的电势场，以便屏蔽第一电极与侧壁。电气控制电路限制任何两个电极之间的电流流动，以防止否则可能由玻璃的陡负温度 - 电阻率特性引起的失控状况。控制电路包括使电流之间的电流流动使DC分量最小化的电路。

35. 发明授权

US3793557A Dimmer circuit and gapped core inductor useful therewith 失效
标题翻译： DIMMER电路和带隙电感器有用
公开(公告)号：US3793557A
公开(公告)日：1974-02-19
申请号：US3793557D
申请日：1972-07-17
申请人： BERKEY COLORTRAN
发明人： CRAMER M
IPC分类号： G05F1/445 , H01F38/02 , H05B37/02 , H05B39/08 , H05B39/04
CPC分类号： H01F38/023 , G05F1/445 , H05B37/02 , H05B39/083 , Y10S315/07
摘要： In a dimmer circuit a summing amplifier combines a light intensity control voltage with a feedback voltage derived from the thyristor controlled ac power supplied to the lamp load. The summing amplifier output establishes the steepness of a ramp signal produced each ac half cycle by a ramp generator. A trigger circuit fires the thyristor device when the ramp signal reaches a certain level. In the feedback circuit a signal transformer coupled from the load is rectified, shaped by filter networks at the rectifier input and output, and used to charge a capacitor via an isolation amplifier. This capacitor provides a feedback voltage which, when summed with the control voltage, achieves a desired functional relationship between control voltage and light intensity, with compensation for load variation. A gapped core inductor is series connected with the ac supply to minimize certain adverse effects associated with turn-on of the thyristor device. Thus, use of the inductor reduces lamp filament vibration and minimizes inductive coupling to adjacent audio and other low level circuits. The inductor core includes both small and large air gaps to provide maximum inductance over a wide range of load current.
摘要翻译：在调光电路中，求和放大器将光强度控制电压与从提供给灯负载的可控硅控制的交流电源导出的反馈电压相结合。求和放大器输出通过斜坡发生器建立每个交流半周期产生的斜坡信号的陡度。当斜坡信号达到一定水平时，触发电路触发晶闸管器件。在反馈电路中，从负载耦合的信号变换器被整流，通过整流器输入和输出处的滤波器网络整形，并用于通过隔离放大器对电容器充电。该电容器提供反馈电压，当与控制电压相加时，在控制电压和光强度之间达到期望的功能关系，并对负载变化进行补偿。

36. 发明授权

US3737761A Voltage adaptor circuit 失效
标题翻译：电压适配器电路
公开(公告)号：US3737761A
公开(公告)日：1973-06-05
申请号：US3737761D
申请日：1972-04-19
申请人： INT STANDARD ELECTRIC CORP
发明人： WALTHER D
IPC分类号： G05F1/445 , H02J3/04 , G05F5/00
CPC分类号： G05F1/445 , Y10T307/675 , Y10T307/858
摘要： An electrical circuit for automatically adapting an inductive load to that of one of two possible A.C. supply voltages applied across the circuit. The circuit comprises a capacitor connected in series with the load. The capacitor value is such that a series resonant circuit is formed with the load at a frequency of operation. A controlled semiconductor device having a pair of terminals and a gate terminal is connected with the pair of terminals in parallel across the capacitor. The gate terminal is connected through a non-linear current-voltage characteristic electrical component to one of the terminals of the A.C. supply voltage. For the lower A.C. supply voltage, the capacitor and inductor form a series resonant circuit and at the higher A.C. supply voltage, the controlled semiconductor device short circuits the capacitor.
摘要翻译：一种电路，用于将电感负载自动适应于跨过电路施加的两个可能的交流电源电压之一。电路包括与负载串联连接的电容器。电容器值使得以工作频率的负载形成串联谐振电路。具有一对端子和栅极端子的受控半导体器件与该对端子并联连接在电容器上。栅极端子通过非线性电流 - 电压特性电气元件连接到交流电源电压的端子之一。对于较低的交流电源电压，电容器和电感器形成串联谐振电路，并且在较高的交流电源电压下，受控半导体器件使电容器短路。

37. 发明授权

US3735241A Poly-phase digital controller 失效
标题翻译：多相数字控制器
公开(公告)号：US3735241A
公开(公告)日：1973-05-22
申请号：US3735241D
申请日：1971-12-28
申请人： ENGINEERING INC T
发明人： O SULLIVAN G
IPC分类号： G05F1/445 , H02M1/084 , G05F1/44
CPC分类号： H02M1/0845 , G05F1/445
摘要： A polyphase digital controller comprised of circuitry to generate and count a group of digital clock pulses with the first pulse being counted after the zero crossing of the primary voltage. The number of pulses in the group is proportional to the control function representing (SCR) silicon controlled rectifiers off time. These clock pulses are counted by an up counter which is used to set an individual down counter in each phase. The up counter operates six times during each 360* of the input line. This setting of the down counters occurs when the primary voltage associated with the individual phase of each counter crosses zero. This zero crossing also starts the down counter associated with that phase, counting a clock frequency that is one-third the frequency of the up counter clock. When the down counter reaches zero it supplies a signal to fire the SCR controlling that phase.
摘要翻译：多相数字控制器包括用于产生和计数一组数字时钟脉冲的电路，其中第一脉冲在初级电压过零之后被计数。组中的脉冲数与表示（SCR）硅控制整流器关断时间的控制功能成比例。这些时钟脉冲由向上计数器计数，该计数器用于在每个相位中设置单个递减计数器。输入线每360度输出一次上升计数器。当与每个计数器的各个相位相关联的主电压跨越零时，会产生向下计数器的设置。该零交叉也启动与该相位相关联的向下计数器，对时钟频率进行计数，该时钟频率是向上计数器时钟频率的三分之一。当向下计数器达到零时，它提供一个信号来触发控制该相位的SCR。

38. 发明授权

US3731182A Phase control type dimming system with means to compensate for the hysteresis effect 失效
标题翻译：相位控制类型的调节系统，用于补偿滞后效应
公开(公告)号：US3731182A
公开(公告)日：1973-05-01
申请号：US3731182D
申请日：1971-11-03
申请人： BLACKWELL ELECTRONICS IND CO L
发明人： HIRONO A , MIYAJIMA M
IPC分类号： G05F1/445 , H02M5/257 , G05F3/04
CPC分类号： G05F1/445 , H02M5/2573
摘要： A phase control type dimming circuit employs a TRIAC in series with a load and an A.C. power source and a trigger circuit including a variable resistor and condenser in series across the TRIAC with a SBS connecting the junction between the resistor and condenser and the gate electrode of the TRIAC. A compensation circuit, which is connected to the gate terminal of the SBS to eliminate the hysteresis effect and extend the control range, includes in one embodiment a resistor and diode in series, in a second embodiment a pair of resistors in series and a pair of diodes connecting the junction point between the resistors to the anodes of the SBS, and in a third embodiment a resistor and a first diode in series and a pair of additional diodes connecting the junction between the resistor and the first diode to the anodes of the SBS. The third embodiment may be provided as a monolithic integrated circuit including the three diodes incorporated within the SBS.
摘要翻译：相位控制型调光电路采用与负载和AC电源串联的TRIAC和包括可变电阻器和电容器的触发电路，该可变电阻器和电容器串联在TRIAC上，SBS连接电阻器和电容器之间的接点以及栅电极 TRIAC。连接到SBS的栅极端子以消除滞后效应并扩展控制范围的补偿电路在一个实施例中包括串联的电阻器和二极管，在第二实施例中，串联的一对电阻器和一对将电阻器之间的连接点连接到SBS的阳极的二极管，并且在第三实施例中将串联的电阻器和第一二极管以及将电阻器和第一二极管之间的连接点连接到SBS的阳极的一对附加二极管。第三实施例可以被提供为包括并入SBS内的三个二极管的单片集成电路。

39. 发明授权

US3693069A Gating control for a static switching arrangement with improved conduction angle balancing means 失效
标题翻译：具有改进的导通角平衡平衡的静态切换装置的控制
公开(公告)号：US3693069A
公开(公告)日：1972-09-19
申请号：US3693069D
申请日：1971-11-09
申请人： GEN ELECTRIC
发明人： KELLEY FRED W JR , LEZAN GEORGES R E
IPC分类号： G05F1/445 , G05F1/455 , G05F1/44
CPC分类号： G05F1/455 , G05F1/445
摘要： A gating control for a switching arrangement comprising a pair of thyristors which are alternately gated into conduction by gating pulses for predetermined conduction angles. First balancing means compares the conduction angles of alternate thyristors on those pairs of successive conducting periods during which a first one of the thyristors conducts preceding a second one of the thyristors and derives a first-balance indicating signal indicative of the difference between the conduction angles compared by the first balancing means. Second balancing means compares the conduction angles of alternate thyristors on those pairs of successive conducting periods during which the second thyristor conducts preceding said first thyristor and derives a second balance-indicating signal indicative of the difference between the conduction angles compared by this second balancing means. For forcing the conduction angles of the alternate thyristors toward equality, means sensitive to the first balanceindicating signal varies the gating angles at which gating pulses are delivered to the first thyristor; and means sensitive to the second balance-indicating signal varies the gating angles at which gating pulses are delivered to the second thyristor.

40. 发明授权

US3638043A Current control device 失效
标题翻译：电流控制装置
公开(公告)号：US3638043A
公开(公告)日：1972-01-25
申请号：US3638043D
申请日：1969-10-06
申请人： AUCO NV
发明人： LAUPMAN ROBERT RONALD
IPC分类号： G05F1/445 , G05F1/455 , H02M1/084 , H02M5/257 , H03K17/00
CPC分类号： H02M5/2573 , G05F1/445 , G05F1/455 , H02M1/084
摘要： A device for controlling an electrical current through a load by means of a bilateral controlled rectifying element. Said element is fired periodically through a bilateral rectifier which in its turn receives a firing signal through a series capacitor included in the output circuit of a control amplifier, which at its input receives stimuli for firing said controlled rectifying element. Said series capacitor is effective to improve the symmetry of the waveform of the current through the load, while also the current control range is increased thereby.
摘要翻译：一种用于通过双向可控整流元件控制通过负载的电流的装置。所述元件通过双向整流器周期性地点火，该双向整流器又通过包括在控制放大器的输出电路中的串联电容器接收点火信号，该控制放大器在其输入端接收用于点火所述受控整流元件的激励。所述串联电容器有效地提高了通过负载的电流波形的对称性，同时也增加了电流控制范围。

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