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公开(公告)号：US4426564A
公开(公告)日：1984-01-17
申请号：US323610
申请日：1981-11-20
CPC分类号： H05B6/062 , H02M7/53803 , H05B6/1272 , Y02B40/126 , Y02B70/1441
摘要： A parallel resonant induction cooking surface unit comprises a voltage fed inverter which drives a load circuit, comprised of a main induction drive coil, a tuning capacitor coupled in parallel with the main induction drive coil, and an inductor coupled in series with the main induction drive coil, with a square wave voltage, causing the main induction drive coil to generate a time variant magnetic field resulting in eddy currents being induced in the surface of a metallic, food-containing utensil positioned adjacent to the main induction drive coil, and hence, utensil heating. By tuning the load circuit to resonance at or near the square wave frequency, reactive currents therein are minimized, resulting in improved power factor. Moreover, resultant main induction drive coil voltage and current are nearly sinusoidal, thereby achieving reduced electromagnetic interference radiation at frequencies greater than the square wave frequency.
摘要翻译： 并联谐振感应烹调表面单元包括驱动负载电路的电压馈送逆变器，负载电路包括主感应驱动线圈，与主感应驱动线圈并联耦合的调谐电容器和与主感应驱动器串联连接的电感器 线圈，具有方波电压，导致主感应驱动线圈产生时变磁场，导致在与主感应驱动线圈相邻定位的金属食品容纳器具的表面中产生涡流， 器具加热。 通过将负载电路调谐到等于或接近方波频率的谐振，其中的无功电流被最小化，导致改善的功率因数。 此外，所得到的主感应驱动线圈的电压和电流几乎是正弦的，从而在大于方波频率的频率下实现减少的电磁干扰辐射。
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公开(公告)号：US4642745A
公开(公告)日：1987-02-10
申请号：US835708
申请日：1986-03-03
CPC分类号： H02M1/4208 , H02M2001/4275 , H02P2201/05 , Y02B70/126 , Y02P80/112
摘要： A single power converter is capable of drawing low distortion current from an AC line and delivering DC or AC power to a load. The single power converter is used to independently control the input current and the output current. The power converter transformer has an output winding which is controlled by pulse-width modulation (PWM) and a frequency controlled boost winding for controlling input current.
摘要翻译： 单个功率转换器能够从AC线路中获取低失真电流，并将DC或AC电力传送到负载。 单电源转换器用于独立控制输入电流和输出电流。 电源转换器变压器具有通过脉宽调制（PWM）控制的输出绕组和用于控制输入电流的频率控制升压绕组。
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公开(公告)号：US5355102A
公开(公告)日：1994-10-11
申请号：US869090
申请日：1992-04-14
CPC分类号： H01L23/642 , H01L24/24 , H01L24/82 , H03H7/38 , H01L2224/24227 , H01L2224/82039 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01015 , H01L2924/01027 , H01L2924/01029 , H01L2924/01033 , H01L2924/01039 , H01L2924/01074 , H01L2924/01078 , H01L2924/014 , H01L2924/07802 , H01L2924/10329 , H01L2924/12042 , H01L2924/14 , H01L2924/1423 , H01L2924/15153 , H01L2924/15165 , H01L2924/1517 , H01L2924/15787 , H01L2924/19042 , H01L2924/30107 , H01L2924/3011 , H01L2924/3025
摘要： Active components of a microwave system are interconnected on a substrate by a dielectric-overlay, high-density-interconnect structure in a manner which provides close impedance matching, minimizes impedance discontinuities and substantially increases the yield of good circuits.
摘要翻译： 微波系统的有源部件通过电介质覆盖层，高密度互连结构以基板的方式互相连接在一起，该结构提供了紧密的阻抗匹配，使阻抗不连续性最小化并显着提高了良好电路的产量。
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4.发明授权Eddy current device for inspecting a component having a flexible support with a plural sensor array 失效用于检查具有多个传感器阵列的具有柔性支撑件的部件的涡流装置
公开(公告)号：US5315234A
公开(公告)日：1994-05-24
申请号：US862950
申请日：1992-04-03
申请人： George H. Sutton, Jr. , Francis H. Little , Kristina H. V. Hedengren , Richard J. Charles , William P. Kornrumpf , Donna C. Hurley
发明人： George H. Sutton, Jr. , Francis H. Little , Kristina H. V. Hedengren , Richard J. Charles , William P. Kornrumpf , Donna C. Hurley
CPC分类号： G01N27/902 , G01N27/904
摘要： An eddy current device for inspecting a component includes an eddy current array circuit having respective pluralities of drive and sense elements and having an active face for positioning on a surface of the component during the inspection operation. A backing is disposed on a face of the eddy current array circuit opposite to the active face for concentrating an electromagnetic flux from the eddy current array circuit into the component when each of the plurality of drive elements is being energized. A mechanical arrangement is provided for supporting and deploying the backing and the array circuit to substantially conform with the surface portion under inspection and to cause each of the pluralities of drive and sense elements to be maintained at their respective substantially constant distances from the inspection surface during scanning, preferably at a controlled rate of scan.
摘要翻译： 用于检查部件的涡流装置包括具有相应多个驱动和感测元件的涡流阵列电路，并且在检查操作期间具有用于定位在部件的表面上的主动面。 背衬设置在与有源面相对的涡流阵列电路的表面上，用于当多个驱动元件中的每一个被通电时，将来自涡流阵列电路的电磁通量集中到部件中。 提供了用于支撑和展开背衬和阵列电路以基本上与被检查的表面部分一致的机械装置，并且使多个驱动和感测元件中的每一个在检测表面期间保持在它们各自基本恒定的距离 优选以受控的扫描速率进行扫描。
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5.再颁专利
公开(公告)号：USRE33691E
公开(公告)日：1991-09-17
申请号：US361843
申请日：1989-06-01
摘要： Improved piezoelectric ceramic switching devices are described along with their .[.method.]. .Iadd.methods .Iaddend.of fabrication. In addition to the devices themselves, novel electric circuits are described for the energization as well as the use of such devices as switching elements in electrical systems. Parts of both the energization circuits and/or utilization circuits employing the piezo ceramic switching device are physically mounted on and supported by non-polarized parts of the piezoelectric ceramic plate elements comprising the switching devices so that lightweight compact construction is achieved along with substantial reduction of stray inductance intercoupling.
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6.再颁专利Method for initially polarizing and centering a piezoelectric ceramic switching device 失效压电陶瓷开关器件初始偏振和定心的方法
公开(公告)号：USRE33618E
公开(公告)日：1991-06-25
申请号：US360225
申请日：1989-06-01
摘要： Improved piezoelectric ceramic switching devices are described along with their .[.method.]. .Iadd.methods .Iaddend.of fabrication. In addition to the devices themselves, novel electric circuits are described for the energization as well as the use of such devices as switching elements in electrical systems. Parts of both the energization circuits and/or utilization circuits employing the piezo ceramic switching device are physically mounted on and supported by non-polarized parts of the piezoelectric ceramic plate elements comprising the switching devices so that lightweight compact construction is achieved along with substantial reduction of stray inductance intercoupling.
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7.发明授权Advanced piezoeceramic power switching devices employing protective gastight enclosure and method of manufacture 失效先进的压电陶瓷功率开关器件采用保护气密性外壳和制造方法
公开(公告)号：US4714847A
公开(公告)日：1987-12-22
申请号：US685108
申请日：1984-12-21
CPC分类号： H01H57/00 , H01H11/00 , H01H2050/025 , Y10T29/42
摘要： This application describes a number of novel advanced piezoelectric ceramic power switching devices which are mounted within protective gastight enclosures that are either evacuated to a high degree of vacuum or filled with an inert gas protective atmosphere. The devices thus constructed are capable of operating over a range of load voltages extending from about 100 volts to 5000 volts or more with corresponding currents of from a few amperes to hundreds of amperes and wherein it is possible to provide a number of such structures in a single common protective gastight enclosure. For certain circuit applications the devices thus constructed have unpoled portions on which are mounted either passive circuit components such as resistors, capacitors and the like or active semiconductor devices all interconnected in circuit relationship with each other and the switching devices by using printed circuit or integrated circuit fabrication techniques. In these devices, stray circuit impedances whether capacitive, inductive or resistive in nature can be reduced to an absolute minimum by appropriated designs. Such complementary circuit components and active semiconductor devices can be, if desired, mounted within the common protective enclosures in close proximity to the piezoceramic switching devices to which they are connected, or alternatively may be mounted exteriorly of the protective enclosures.
摘要翻译： 该应用描述了许多新颖的先进的压电陶瓷功率开关装置，其安装在保护性气密性外壳内，其被抽空到高真空度或填充有惰性气体保护气氛。 如此构造的器件能够在从几百安培到几百安培的相应电流的范围内从大约100伏特延伸到5000伏或更大的负载电压的范围内操作，并且其中可以提供多个这样的结构 单一普通保护气密性外壳。 对于某些电路应用，如此构造的器件具有非绝缘部分，其上安装有诸如电阻器，电容器等的无源电路部件或全部以电路关系彼此互连的有源半导体器件，并且开关器件通过使用印刷电路或集成电路 制造技术。 在这些器件中，杂散电路阻抗本质上是电容性，电感性还是电阻性都可以通过专用设计降低到绝对最小值。 如果需要，这样的互补电路部件和有源半导体器件可以安装在普通的保护外壳内，靠近与它们连接的压电陶瓷开关器件，或者可选地安装在保护外壳的外部。
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8.发明授权Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture 失效先进的压电陶瓷功率开关器件采用保护气密性外壳和制造方法
公开(公告)号：US4689517A
公开(公告)日：1987-08-25
申请号：US881525
申请日：1986-06-30
CPC分类号： H01H57/00 , H01H11/00 , H01H2050/025
摘要： This application describes a number of novel advanced piezoelectric ceramic power switching devices which are mounted within protective gastight enclosures that are either evacuated to a high degree of vacuum or filled with an inert gas protective atmosphere. The devices thus constructed are capable of operating over a range of load voltages extending from about 100 volts to 5000 volts or more with corresponding currents of from a few amperes to hundreds of amperes and wherein it is possible to provide a number of such structures in a single common protective gastight enclosure. For certain circuit applications the devices thus constructed have unpoled portions on which are mounted either passive circuit components such as resistors, capacitors and the like or active semiconductor devices all interconnected in circuit relationship with each other and the switching devices by using printed circuit or integrated circuit fabrication techniques. In these devices, stray circuit impedances whether capacitive, inductive or resistive in nature can be reduced to an absolute minimum by appropriate designs. Such complementary circuit components and active semiconductor devices can be, if desired, mounted within the common protective enclosures in close proximity to the piezoceramic switching devices to which they are connected, or alternatively may be mounted exteriorly of the protective enclosures.
摘要翻译： 该应用描述了许多新颖的先进的压电陶瓷功率开关装置，其安装在保护性气密性外壳内，其被抽空到高真空度或填充有惰性气体保护气氛。 如此构造的器件能够在从几百安培到几百安培的相应电流的范围内从大约100伏特延伸到5000伏或更大的负载电压的范围内操作，并且其中可以提供多个这样的结构 单一普通保护气密性外壳。 对于某些电路应用，如此构造的器件具有非绝缘部分，其上安装有诸如电阻器，电容器等的无源电路部件或全部以电路关系彼此互连的有源半导体器件，并且开关器件通过使用印刷电路或集成电路 制造技术。 在这些器件中，通过适当的设计，电容，电感或电阻性质的杂散电路阻抗可以降低到绝对最小值。 如果需要，这样的互补电路部件和有源半导体器件可以安装在普通的保护外壳内，靠近与它们连接的压电陶瓷开关器件，或者可选地安装在保护外壳的外部。
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9.发明授权Pressure sensing devices and methods, control devices and methods of operating same, smart pressure switches, air conditioning systems and devices for controlling same 失效压力传感装置及方法，控制装置及其操作方法，智能压力开关，空调系统及其控制装置
公开(公告)号：US4621503A
公开(公告)日：1986-11-11
申请号：US791805
申请日：1985-10-28
摘要： A device for sensing pressure at a source thereof comprising a housing with a fluid pressure responsive diaphragm movable therein for defining therewith an expansible chamber for communication with the source of pressure the magnitude of which is to be sensed, and a transducer. The transducer includes a body of magnetoelastic material of generally annular form positioned within the housing and having magnetic properties which vary as a function of the stress to which the body is subjected in response to movement of the diaphragm. Electrical circuitry responds to stress-induced changes in the magnetic properties to produce an electrical signal having a value which is a function of the magnitude of the fluid pressure. The device includes an actuator, which is movable with the diaphragm, for accepting and retaining a sector of the annular body and a cradle generally fixed in relation to the housing for accepting and retaining a diametrically opposite sector of the annular body. An increase in the fluid pressure in the expansible chamber tends to compress the annular body between the actuator and the cradle. A smart pressure switch including logic circuitry and the pressure sensing device, air conditioning systems incorporating such sensing and control devices, and methods of sensing pressure and controlling the operation of air conditioning systems are also described.
摘要翻译： 一种用于感测其源头上的压力的装置，包括具有可在其中移动的流体压力响应膜片的壳体，用于限定用于与要感测其大小的压力源连通的可膨胀室，以及换能器。 换能器包括定位在壳体内的大致环形的磁致弹性材料体，并且具有根据振动体的运动而受到体的应力的变化而变化的磁性能。 电路响应应力引起的磁特性变化，以产生具有作为流体压力大小的函数的值的电信号。 该装置包括可与隔膜一起移动的致动器，用于接收和保持环形体的扇形部分，以及相对于壳体大致固定的支架，用于接收和保持环形体的直径相对的扇形部分。 可膨胀室中的流体压力的增加倾向于压缩致动器和支架之间的环形体。 还描述了包括逻辑电路和压力感测装置的智能压力开关，包括这种感测和控制装置的空调系统以及感测压力和控制空调系统的操作的方法。
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10.发明授权
公开(公告)号：US4489234A
公开(公告)日：1984-12-18
申请号：US478827
申请日：1983-03-25
CPC分类号： H05B3/744 , B32B3/12 , H05B3/0076 , Y10T428/24149
摘要： Radiant-energy heating and/or cooking apparatus has an infrared-wavelength radiation-producing element, a reflector for concentrating the infrared radiation and a coverplate through which the concentrated radiation is transmitted to a recipient material, e.g. foodstuffs to be cooked. The coverplate has first and second surface members separated from one another by a honeycomb of tubes; the members and tubes are fabricated of an infrared-transmissive material. The resulting honeycomb coverplate has low infrared absorption and great mechanical strength capable of withstanding severe thermal shock.
摘要翻译： 辐射能量加热和/或烹饪设备具有红外波长辐射产生元件，用于聚集红外辐射的反射器和通过其将集中的辐射透射到受体材料的覆盖板，例如， 要煮熟的食物 盖板具有第一和第二表面构件，其通过蜂窝状的管彼此分离; 构件和管由红外透射材料制成。 所得到的蜂窝盖板具有低的红外吸收和很大的机械强度，能承受严重的热冲击。
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