中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.024 seconds)

    VOLTAGE CLAMP CIRCUIT
    1.
    发明专利
    VOLTAGE CLAMP CIRCUIT 审中-公开

    公开(公告)号：JP2002135072A

    公开(公告)日：2002-05-10

    申请号：JP2001276259

    申请日：2001-09-12

    Applicant: FUSION LIGHTING INC

    Inventor： GITSEVICH ALEKSANDR ,  MACLENNAN DONALD A

    IPC: H03G11/02 ,  H03B1/02 ,  H03B1/04 ,  H03B5/18 ,  H03F1/52

    Abstract: PROBLEM TO BE SOLVED: To provide a voltage clamp circuit for protecting an input of transistors for use in an RF amplifier or oscillator. SOLUTION: A voltage clamp circuit has a PIN diode which connects a first end to a signal line; a capacitor connected between a second end of the PIN diode and a ground, and a reference voltage which is applied to a connection part between the PIN diode and the capacitor. The clamp circuit can be used for limiting a voltage on the signal line within a desirable range. The voltage clamp circuit is operating at a frequency exceeding 300 MHz and a power level of 50 W, while an RF power transistor can be protected from excessive drive conditions. The voltage clamp circuit scarcely exerts adverse influences on circuit operations and efficiency. As a specific example, the voltage clamp circuit involves a power oscillator which protects from a destructive feedback and supplies wattage exceeding 170 RF over 700 MHz.

    HIGH FREQUENCY INDUCTIVE LAMP AND POWER OSCILLATOR
    5.
    发明申请
    HIGH FREQUENCY INDUCTIVE LAMP AND POWER OSCILLATOR 审中-公开
    高频感应灯和功率振荡器

    公开(公告)号：WO9936940A3

    公开(公告)日：2001-01-04

    申请号：PCT/US9900047

    申请日：1999-01-11

    Applicant: FUSION LIGHTING INC ,  MACLENNAN DONALD A ,  TURNER BRIAN P ,  GITSEVICH ALEKSANDR ,  BASS GARY K ,  DOLAN JAMES T ,  KIPLING KENT ,  KIRKPATRICK DOUGLAS A ,  LENG YONGZHANG ,  LEVIN IZRAIL ,  SHANKS BRUCE ,  SMITH MALCOLM ,  TRIMBLE WILLIAM C ,  TSAI PETER ,  ROY ROBERT J

    Inventor： MACLENNAN DONALD A ,  TURNER BRIAN P ,  GITSEVICH ALEKSANDR ,  BASS GARY K ,  DOLAN JAMES T ,  KIPLING KENT ,  KIRKPATRICK DOUGLAS A ,  LENG YONGZHANG ,  LEVIN IZRAIL ,  SHANKS BRUCE ,  SMITH MALCOLM ,  TRIMBLE WILLIAM C ,  TSAI PETER ,  ROY ROBERT J

    IPC: H01J61/12 ,  H01J61/52 ,  H01J65/04 ,  H05B41/24

    CPC classification number: H01J61/523 ,  H01J61/12 ,  H01J61/125 ,  H01J65/044 ,  H01J65/048 ,  H05B41/24

    Abstract: A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes a bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and/or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70 % efficiency. Various control circuits may be employed to match the driving frequency of the oscillator to a plurality of tuning states of the lamp.

    Abstract translation: 高频电感耦合无电极灯包括具有小于施加到其上的驱动频率的一半波长的有效电长度的励磁线圈，优选地少得多。 驱动频率可以大于100MHz，优选高达915MHz。 优选地，激励线圈被配置为具有小于一圈的非螺旋，半圆柱形导电表面，具有结婚戒指的一般形状。 在高频时，线圈中的电流形成两个彼此间隔开并平行的环。 配置适当，线圈接近亥姆霍兹配置。 该灯优选地使用封装在反射陶瓷杯中的灯泡，其中形成有预先形成的孔。 陶瓷杯可以包括有助于对准的结构特征和/或凸缘面以辅助热管理。 灯头优选是集成灯头，其包括围绕绝缘陶瓷的金属基体复合体，其中整体形成在陶瓷上的激发。 新颖的固态振荡器优选地向灯提供RF功率。 振荡器是能够以超过70％效率提供超过70瓦功率的单个有源元件器件。 可以采用各种控制电路来将振荡器的驱动频率与灯的多个调谐状态相匹配。

    INTEGRATED ELECTRODELESS LAMP AND SOLID STATE OSCILLATORS
    8.
    发明申请
    INTEGRATED ELECTRODELESS LAMP AND SOLID STATE OSCILLATORS 审中-公开
    集成无电极灯和固态振荡器

    公开(公告)号：WO02097842A3

    公开(公告)日：2003-05-08

    申请号：PCT/US0216688

    申请日：2002-05-29

    Applicant: FUSION LIGHTING INC ,  KIRKPATRICK DOUGLAS A ,  BASS GARY K ,  COPSEY JESSE F ,  GITSEVICH ALEKSANDR ,  HELSEL DAVID ,  LAWRENCE DAVID W ,  RHYNE EDWARD P ,  SWEENEY STEPHEN J ,  TSAI PETER

    Inventor： KIRKPATRICK DOUGLAS A ,  BASS GARY K ,  COPSEY JESSE F ,  GITSEVICH ALEKSANDR ,  HELSEL DAVID ,  LAWRENCE DAVID W ,  RHYNE EDWARD P ,  SWEENEY STEPHEN J ,  TSAI PETER

    IPC: H01J61/02 ,  H01J61/52 ,  H01J61/56 ,  H01J65/04

    CPC classification number: H01J65/042 ,  H01J61/025 ,  H01J61/52 ,  H01J61/56 ,  H01J65/048

    Abstract: An integrated electrodeless lamp (11) includes a lamp housing (13) defining two or more compartments (33, 35, 37) housing components of the lamp (11), wherein at least one compartment (33) provides an opening (17) in the lamp housing (13), a cover (15) fitted to the lamp housing (13), and an optics assembly (19) positioned in the opening (17) in the lamp housing (13), wherein the lamp housing (13), the cover (15), and the optics assembly (19) provide an RF sealed system. The lamp components include an RF source providing RF energy for the lamp (11), an aperture bulb (51) assembly including an electrodeless envelope (54) containing a discharge forming fill which emits light when excited by RF energy, andan excitation structure for coupling RF energy from the RF source to the discharge forming fill. The optics assembly (19) may be mounted in the opening (17) in the lamp housing (13) with a twist lock mounting structure. The application also discloses solid state oscillators comprising either a turning circuit having a pair of complementary varactor diodes or a solid state active element with at least two die which may be comprised in the RF source of such an integrated electrodeless lamp (11).

    Abstract translation: 集成的无电极灯（11）包括限定两个或更多个容纳灯（11）的部件的隔室（33,35,37）的灯壳（13），其中至少一个隔室（33）提供一个开口（17） 灯壳体（13），安装到灯壳体（13）的盖子（15）和位于灯壳体（13）中的开口（17）中的光学组件（19），其中灯壳体（13） ，盖（15）和光学组件（19）提供RF密封系统。 灯组件包括为灯（11）提供RF能量的RF源，包括无电极外壳（54）的孔灯（51）组件，其包含当被RF能量激发时发射光的放电形成填充物，以及用于耦合的激励结构 RF能量从RF源到放电成形填充。 光学组件（19）可以用扭锁安装结构安装在灯壳体（13）中的开口（17）中。 本申请还公开了包括具有一对互补变容二极管的转向电路或具有至少两个管芯的固态有源元件的固态振荡器，该至少两个管芯可以包括在这种集成无极灯（11）的RF源中。

    VOLTAGE CLAMPING CIRCUIT
    9.
    发明申请
    VOLTAGE CLAMPING CIRCUIT 审中-公开
    电压钳位电路

    公开(公告)号：WO0223692A3

    公开(公告)日：2002-06-27

    申请号：PCT/US0126022

    申请日：2001-09-12

    Applicant: FUSION LIGHTING INC ,  GITSEVICH ALEKSANDR ,  MACLENNAN DONALD A

    Inventor： GITSEVICH ALEKSANDR ,  MACLENNAN DONALD A

    IPC: H03G11/02 ,  H03B1/02 ,  H03B1/04 ,  H03B5/18 ,  H03F1/52

    CPC classification number: H03B1/04 ,  H03B1/02 ,  H03B5/18 ,  H03F1/523 ,  H03F2200/444

    Abstract: A voltage clamping circuit includes a PIN diode with a first end connected to a signal line, a capacitor connected between ground and a second end of the PIN diode; and a reference voltage applied to a junction of the PIN diode and the capacitor. Dual arrangements of the clamping circuit may be used to limit a voltage on the signal line within a desired range. The voltage clamping circuit is effective for protecting RF power transistors from overdrive conditions while operating at frequencies above 300 MHz and power levels in excess of 50 watts. The voltage clamping circuit has minimal adverse impact on circuit operation and efficiency. Specific examples include a power oscillator providing over 170 RF watts at above 700 MHz with the voltage clamping circuit providing protection from destructive feedback.

    Abstract translation: 一种钳位电路，包括：PIN二极管，其第一端连接到信号线;电容器，连接在地和PIN二极管的第二端之间; 以及施加到PIN二极管和电容器的结点的参考电压。 钳位电路的双重布置可以用于将信号线上的电压限制在期望的范围内。 电压钳位电路有效保护RF功率晶体管免受过驱动条件的影响，同时工作频率高于300 MHz，功率水平超过50 W。 电压钳位电路对电路操作和效率的影响极小。 具体实例包括在700MHz以上提供超过170RF瓦特的功率振荡器，其中电压钳位电路提供保护免受破坏性反馈。

Patent Agency Ranking