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21.发明专利Power supply unit, high-frequency circuit system and heater voltage control method 有权电源单元，高频电路系统和加热器电压控制方法
公开(公告)号：JP2008234907A
公开(公告)日：2008-10-02
申请号：JP2007070519
申请日：2007-03-19
Applicant: Nec Microwave Inc , Necマイクロ波管株式会社
Inventor： CHIBA TORU , NAKAZATO KOHEI
IPC: H01J23/34
Abstract: PROBLEM TO BE SOLVED: To provide a power supply unit capable of shortening a preheating time by a heater which is necessary in recovering from a power failure state or powering-on without causing the instability of operation, a high-frequency circuit system, and a heater voltage control method. SOLUTION: In recovering from a power failure, a voltage higher than that in a normal operation is supplied to a heater, and, after a lapse of a preset time, a voltage supplied to the heater is changed over to a voltage in the normal operation, and a control signal for starting the operation of an electron tube is outputted. Alternatively, in turning power on, the rate of change of a heater current is determined in each period of time, when the rate of change is set to a value not larger than a preset threshold, a voltage higher than that in the normal operation is supplied to the heater; and, after a lapse of the preset time, the voltage to be supplied to the heater is changed over to the voltage in the normal operation, and a control signal for starting the operation of the electron tube is outputted. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供一种电源单元，其能够通过加热器缩短预热时间，所述加热器是从停电状态恢复或加电而不引起操作不稳定所需要的，高频电路系统 ，以及加热器电压控制方法。 解决方案：在从电源故障中恢复时，将高于正常操作的电压提供给加热器，并且在经过预设时间之后，将提供给加热器的电压转换为 输出正常操作和用于开始电子管操作的控制信号。 或者，在接通电源时，在每个时间段中确定加热器电流的变化率，当变化率设定为不大于预设阈值的值时，比正常运行中的电压高 供应给加热器; 并且在经过预设时间之后，将要提供给加热器的电压转换为正常操作中的电压，并且输出用于开始电子管操作的控制信号。 版权所有（C）2009，JPO＆INPIT
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22.发明专利
公开(公告)号：JP2008028905A
公开(公告)日：2008-02-07
申请号：JP2006201882
申请日：2006-07-25
Applicant: Nec Microwave Inc , Necマイクロ波管株式会社
Inventor： SOGA KAZUHITO , NEMOTO AKIHIKO
IPC: H01P5/103
CPC classification number: H01P5/103
Abstract: PROBLEM TO BE SOLVED: To provide a coaxial waveguide conversion circuit which makes a contact state between a coaxial internal conductor and a waveguide matching component better than the existing structure, and increases heat radiation from the travelling wave tube to the waveguide.
SOLUTION: A fitting hole 207b of a single waveguide matching component 207A is a tapered round hole, and the hole diameter becomes thinner towards the tip of the component. In addition, an aperture diameter of the fitting hole 207a on the tip side of the component 207A is larger than the tipmost diameter of the coaxial internal conductor 205, and smaller than the diameter of the main body of the coaxial internal conductor 205. Consequently, when the coaxial internal conductor 205 is inserted into the fitting hole 207a of the waveguide matching component 207A; each cantilever support 207c divided by slots transforms matching the outer diameter of the coaxial internal conductor 205, and keeps a good contact state with the coaxial internal conductor 205 by its spring nature.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种同轴波导转换电路，其使得同轴内部导体和波导匹配部件之间的接触状态优于现有结构，并且增加从行波管到波导的热辐射。 解决方案：单个波导匹配部件207A的装配孔207b是锥形圆孔，并且孔直径朝向部件的尖端变薄。 此外，部件207A的前端侧的嵌合孔207a的开口直径大于同轴内部导体205的最前端的直径，小于同轴内部导体205的主体的直径。因此， 当同轴内部导体205插入到波导匹配部件207A的装配孔207a中时， 由槽划分的每个悬臂支撑件207c转换匹配同轴内部导体205的外径，并且通过其弹簧性质与同轴内部导体205保持良好的接触状态。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2005108446A
公开(公告)日：2005-04-21
申请号：JP2003335875
申请日：2003-09-26
Applicant: Nec Microwave Inc , Necマイクロ波管株式会社
Inventor： KOBAYASHI JUNICHI , FUJIWARA EIJI
CPC classification number: H01J23/34 , H01J2225/34
Abstract: PROBLEM TO BE SOLVED: To provide a power source device for a traveling wave tube of a small size and low cost.
SOLUTION: The power source device comprises an oscillation circuit 11 generating an oscillation signal having a frequency optionally selected from a plurality of frequencies; an inverter 12 to which the oscillation signal is supplied from the oscillation circuit 11, generating an alternating current voltage signal having a frequency of the oscillation signal; a transformer 17 transforming the alternating current voltage generated at the inverter 12 at a primary side, and supplying it to a secondary side; a rectifying circuit 18 at the secondary side of the transformer 17, rectifying the alternating current voltage transformed at the transformer 17, and impressing it on the traveling wave tube 112; a frequency detecting circuit 27 detecting a frequency supplied from the transformer 17 to the rectifying circuit 18, and generating an element control signal in compliance with the detected frequency; and a control element 29 controlling the impression of a voltage on an anode electrode of the traveling wave tube 112 in compliance with the element control signal.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 解决的问题：提供小型，低成本的行波管的电源装置。 解决方案：电源装置包括：振荡电路11，产生具有从多个频率中选择的频率的振荡信号; 从振荡电路11提供振荡信号的逆变器12，产生具有振荡信号频率的交流电压信号; 变压器17，将在逆变器12处产生的交流电压转换为初级侧，并将其提供给次级侧; 整流电路18，在变压器17的次级侧，整流变压器17的变压器的交流电压，并将其压入行波管112; 频率检测电路27，检测从变压器17向整流电路18提供的频率，并根据检测到的频率生成元件控制信号; 以及控制元件29，其根据元件控制信号控制行波管112的阳极电压的印象。 版权所有（C）2005，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2010128551A
公开(公告)日：2010-06-10
申请号：JP2008299435
申请日：2008-11-25
Applicant: Nec Microwave Inc , Necマイクロ波管株式会社
Inventor： NAKAZATO KOHEI
CPC classification number: G01R19/0092 , G01R31/40 , H01J25/025
Abstract: PROBLEM TO BE SOLVED: To provide a current measuring circuit for accurately measuring a current flowing through a high-voltage site while suppressing the increase of costs.
SOLUTION: The current measuring circuit includes: a current-detecting resistor which is inserted in series between a high-voltage site and an output terminal of a power supply circuit supplying a predetermined direct voltage to the high-voltage site, and which generates, at both ends thereof, a potential difference proportional to a currents flowing through the high voltage site; a first resistor, a second resistor, a transistor and a third resistor connected in series between a ground potential and the output terminal of a power supply circuit, and configured to measure a current flowing through the high-voltage site; a differential amplifier for controlling a current flowing through the transistor so that a potential difference generated between both ends of the third resistor becomes proportional to a potential difference generated between both ends of the current-detecting resistor; and a direct voltage source for generating a direct voltage for operating the differential amplifier.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：提供一种用于在抑制成本增加的同时精确地测量流过高压部位的电流的电流测量电路。 电流测量电路包括：电流检测电阻器，其串联插入到向高压部位提供预定直流电压的电源电路的高压部位和输出端子之间，以及哪个 在其两端产生与流经高压部位的电流成比例的电位差; 第一电阻器，第二电阻器，晶体管和第三电阻器，其串联连接在接地电位和电源电路的输出端子之间，并且被配置为测量流过高压部位的电流; 用于控制流过晶体管的电流的差分放大器，使得在第三电阻器的两端之间产生的电位差与电流检测电阻器的两端之间产生的电位差成比例; 以及用于产生用于操作差分放大器的直流电压的直流电压源。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009037754A
公开(公告)日：2009-02-19
申请号：JP2007198768
申请日：2007-07-31
Applicant: Nec Microwave Inc , Necマイクロ波管株式会社
Inventor： KOBAYASHI JUNICHI , NAKAZATO KOHEI
IPC: H01J23/34
Abstract: PROBLEM TO BE SOLVED: To provide a power supply device of low cost in a simple structure capable of discharging a load accumulated in a rectifying capacitor in a shorter time than before at stoppage of power, while securing safety at working after stoppage of power supply, and a high-frequency circuit system equipped with the same. SOLUTION: The device is provided with a discharge switch as well as a first resistor connected in series to be connected between a cathode electrode and a first collector electrode, N pieces of arresters (N is a positive integer) connected in series inserted between a connection node of the discharge switch and the first resistor and a ground potential, N pieces of second resistors connected N pieces of arresters and between a second collector electrode to an Nth collector electrode and the ground potential respectively, and a discharge control circuit setting a discharge switch 'off' to be an open state at normal operation of the power supply device, and setting the discharge switch 'on' to be in a short-circuit state at operation stoppage of the power supply device. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：为了以简单的结构提供一种成本低的电源装置，其能够在停电时在比以前更短的时间内放电积聚在整流电容器中的负载，同时确保停止后的工作时的安全性 电源，以及配备该电源的高频电路系统。 解决方案：该装置设有放电开关以及连接在阴极电极和第一集电极之间的串联连接的第一电阻器，串联连接的N个避雷器（N为正整数）插入 在放电开关的连接节点与第一电阻器之间，接地电位分别连接有N个避雷器，N个第二电阻器，分别连接在第二集电极电极至第N集电极电极和接地电位之间，放电控制电路设置 放电开关“断开”为电源装置的正常工作时的打开状态，并且在供电装置的动作停止时将放电开关置于短路状态。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008205093A
公开(公告)日：2008-09-04
申请号：JP2007037908
申请日：2007-02-19
Applicant: Nec Microwave Inc , Necマイクロ波管株式会社
Inventor： MURAKAMI KATSUHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an electronic device capable of inhibiting a drop in intake air quantity flowing into a device body by a fan during normal operation without degrading operability of maintenance.
SOLUTION: An end of an operation substrate on which operating components are mounted is axially fixed to a front panel attached to the device body so that it can open/close, and the other end of the substrate is slidably fixed inside the device body. The operation substrate is placed so that it is approximately vertical to the front panel when the front panel is closed and the substrate can be drawn out from the device body when the front panel is opened.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 解决的问题：提供一种电子装置，其能够在正常操作期间抑制由风扇流入装置主体的进气量的下降而不降低维护的可操作性。 解决方案：安装有操作部件的操作基板的端部被轴向固定到附接到装置主体的前面板，使得其能够打开/关闭，并且基板的另一端可滑动地固定在装置内 身体。 操作基板被放置成当前面板关闭时其大致垂直于前面板，并且当前面板打开时可以将基板从装置主体拉出。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007323915A
公开(公告)日：2007-12-13
申请号：JP2006151983
申请日：2006-05-31
Applicant: Nec Microwave Inc , Necマイクロ波管株式会社
Inventor： KOBAYASHI JUNICHI
CPC classification number: H01J23/34
Abstract: PROBLEM TO BE SOLVED: To provide a power-supply unit capable of suppressing fluctuation of a power voltage even when a load largely fluctuates; and a high-frequency circuit system using it.
SOLUTION: This power-supply unit includes: a series regulator generating a predetermined power voltage from a D.C. voltage output from a rectifier circuit; a capacitor bank stabilizing the power voltage; a charge bypass circuit turned on or off according to a drive signal supplied from the outside, and reducing a period until the power voltage dropped by load fluctuation is stabilized by supplying charge to the capacitor bank from the rectifier circuit in being turned on; an overvoltage comparison circuit detecting that the power voltage exceeds a predetermined voltage value; and a charge bypass control circuit turning on the charge bypass circuit when detecting the drop of the power voltage, and turning off the charge bypass circuit when the overvoltage comparison circuit detects that the power voltage exceeds the predetermined voltage value.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供即使当负载大幅度波动时也能够抑制电力电压的波动的电源单元; 和使用它的高频电路系统。 解决方案：该电源单元包括：串联调节器，从整流电路输出的直流电压产生预定电源电压; 稳定电源电压的电容器组; 充电旁路电路根据从外部提供的驱动信号导通或断开，并且通过在整流电路导通时向电容器组提供电荷来减少直到通过负载波动下降的电压下降的时间段; 检测电源电压超过预定电压值的过电压比较电路; 以及充电旁路控制电路，当检测到电源电压下降时接通充电旁路电路，并且当过电压比较电路检测到电力电压超过预定电压值时，关闭充电旁路电路。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007287382A
公开(公告)日：2007-11-01
申请号：JP2006110806
申请日：2006-04-13
Applicant: Nec Microwave Inc , Necマイクロ波管株式会社
Inventor： MACHIDA TETSUO
Abstract: PROBLEM TO BE SOLVED: To obtain stable VSWR characteristics in a use frequency range, and maintain dimensional accuracy of respective parts.
SOLUTION: This pillbox vacuum window comprises a disk-shaped ceramic 1, a metallized layer 2, a metal part 3, and a metal part 4. The disk-shaped ceramic 1 is arranged in a center of the pillbox vacuum window, and the metallized layer 2 is formed in an outer peripheral part. The metal part 3 includes a large diameter cylinder part 3a having an inner diameter approximately equal to an outer diameter of the disk-shaped ceramic 1, and a small diameter cylinder part 3b having a smaller inner diameter than that of the large diameter cylinder part 3a, and connected to the larger diameter cylinder part 3a to form a step part 3c on a connection part. The disk-shaped ceramic 1 is mounted on the step part 3c. The metal part 4 includes a cylindrical part 4a having an outer diameter approximately equal to the outer diameter of the disk-shaped ceramic 1. The cylinder part 4a is engaged with the step part 3c of the disk-shaped ceramic 1 with the disk-shaped ceramic 1 mounted on the step part 3c of the metal part 3.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：在使用频率范围内获得稳定的VSWR特性，并保持各部件的尺寸精度。
解决方案：该药盒真空窗包括盘形陶瓷1，金属化层2，金属部分3和金属部分4.盘形陶瓷1布置在药丸真空窗的中心， 并且金属化层2形成在外周部分中。 金属部3具有内径大致等于圆盘状陶瓷1的外径的大径圆筒部3a和内径小于大径圆筒部3a的内径的小径圆筒部3b 并且连接到较大直径的缸部3a以在连接部上形成台阶部3c。 盘状陶瓷1安装在台阶部3c上。 金属部件4包括具有与盘状陶瓷1的外径大致相等的外径的圆筒部4a。圆筒部4a与圆盘状陶瓷1的台阶部3c卡合， 陶瓷1安装在金属部件3的台阶部分3c上。版权所有（C）2008，JPO＆INPIT
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