公开(公告)号：JP2009211872A

公开(公告)日：2009-09-17

申请号：JP2008051951

申请日：2008-03-03

Applicant: Nec Microwave Inc ,  Necマイクロ波管株式会社

Inventor： NAKAZATO KOHEI

IPC: H01J23/34

CPC classification number: H01J23/34 ,  H01J25/34

Abstract: PROBLEM TO BE SOLVED: To prevent the degradation of characteristics and damages of an electron tube and alleviate loading of an power supply device by suppressing an excessive helix current flowing upon starting up of a power supply voltage, without causing deterioration of a maximum gain during normal operation of the electron tube such as a travelling wave tube.
SOLUTION: The electron tube or a power supply device includes a detection circuit to detect current flowing in a helix electrode, a voltage restriction circuit which controls the potential difference between the helix electrode and an anode electrode to a prescribed voltage, and a switch which switches over whether to connect through the voltage restriction circuit or by short-circuiting between the helix electrode and the anode electrode according to the output of the detection circuit.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了防止电子管的特性劣化和电子管的损坏，并且通过抑制在启动电源电压时流过的过大的螺旋电流来减轻电源装置的负载，而不会导致最大值的劣化 在诸如行波管的电子管的正常操作期间的增益。 解决方案：电子管或电源装置包括用于检测在螺旋电极中流动的电流的检测电路，将螺旋电极和阳极电极之间的电位差控制到规定电压的电压限制电路，以及 开关，根据检测电路的输出，切换是否通过电压限制电路连接，还是通过短路在螺旋电极和阳极之间进行切换。 版权所有（C）2009，JPO＆INPIT

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

CPC classification number: H01J19/16 ,  H01J1/13 ,  H01J23/04 ,  H01J25/34 ,  H03B9/08

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

公开(公告)号：JP2009094035A

公开(公告)日：2009-04-30

申请号：JP2007266333

申请日：2007-10-12

Applicant: Nec Microwave Inc ,  Necマイクロ波管株式会社

Inventor： NAKAZATO KOHEI

IPC: H01J23/34 ,  H03F3/58

CPC classification number: H01J23/34

Abstract: PROBLEM TO BE SOLVED: To provide a power source device in which current flowing in a helix form for the rise period of helix voltage and collector voltage can be reduced, by using low-cost general purpose parts without resulting in reduction of the maximum gain during the normal operation times of a traveling-wave tube, and to provide a high frequency circuit system equipped with the device. SOLUTION: There are provided a Zener diode connected between a helix electrode and an anode electrode, a transistor that short-circuits or opens between the cathode and the anode of the Zener diode, a photocoupler to turn the transistor on/off by a phototransistor, a first switch for supplying or cutting-off direct electric voltage to a photodiode of the photocoupler, a capacitor which is applied of the direct electric voltage supplied to the photodiode, and a control part in which the direct electric voltage is applied to the photocoupler and the capacitor by turning the first switch on, in advance, while the first switch is simultaneously turned off, when the helix voltage is applied. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种电源装置，其中可以通过使用低成本的通用部件而以螺旋形式流过螺旋形电压和集电极电压的上升周期的电流，而不会导致 在行波管的正常工作时间内的最大增益，以及提供配备有该装置的高频电路系统。 解决方案：提供了一种连接在螺旋电极和阳极电极之间的齐纳二极管，在齐纳二极管的阴极和阳极之间短路或断开的晶体管，一个光电耦合器，以使晶体管开/关由 光电晶体管，用于向光电耦合器的光电二极管提供或切断直流电压的第一开关，施加到提供给光电二极管的直流电压的电容器，以及施加直流电压的控制部分 在施加螺旋电压的同时，当第一开关同时关闭时，预先打开第一开关，从而使光电耦合器和电容器接通。 版权所有（C）2009，JPO＆INPIT

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

IPC: G05F1/10 ,  G01R19/00 ,  H01J23/34 ,  H02M3/28 ,  H03F3/45 ,  H03F3/58

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&INPIT

Abstract 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

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

CPC classification number: H01J23/34 ,  H01J25/34

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

公开(公告)号：JP2010091466A

公开(公告)日：2010-04-22

申请号：JP2008262827

申请日：2008-10-09

Applicant: Nec Microwave Inc ,  Necマイクロ波管株式会社

Inventor： NAKAZATO KOHEI ,  MATSUOKA JUNICHI

IPC: G01K1/14 ,  G01K5/62 ,  G01K7/00 ,  G01K7/24

CPC classification number: G01K1/12 ,  G01K1/08 ,  G01K1/14

Abstract: PROBLEM TO BE SOLVED: To provide a temperature detector that has a thermostat or a thermistor directly attachable to a heating unit and can detect temperature of the heating unit in a simple structure. SOLUTION: This temperature detector includes a transformer, a thermostat that is directly attached to a conductive portion of a heating unit and has a contact point which is opened or closed corresponding to whether or not temperature of the heating unit becomes equal to or higher than predetermined temperature and is connected to a secondary coil of the transformer, and a DC voltage source and a transistor which are adapted to supply a required AC power to a primary coil of the transformer. The temperature detector further includes a current detecting resistor for detecting a current flowing in the primary coil of the transformer, and a comparator circuit that detects a voltage generated between both ends of the current detecting resistor due to the current flowing in the current detecting resistor and outputs an alarm signal when a level of the current flowing in the primary coil of the transformer exceeds a preset threshold. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种温度检测器，其具有直接附接到加热单元的恒温器或热敏电阻，并且可以以简单的结构检测加热单元的温度。 解决方案：该温度检测器包括变压器，恒温器，其直接附接到加热单元的导电部分，并具有对应于加热单元的温度是否等于或等于 高于预定温度并且连接到变压器的次级线圈，以及适于向变压器的初级线圈提供所需AC电力的DC电压源和晶体管。 温度检测器还包括用于检测在变压器的初级线圈中流动的电流的电流检测电阻器，以及比较器电路，其检测由于在电流检测电阻器中流过的电流而在电流检测电阻器的两端之间产生的电压， 当在变压器的初级线圈中流动的电流的电平超过预设阈值时，输出报警信号。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008061332A

公开(公告)日：2008-03-13

申请号：JP2006233438

申请日：2006-08-30

Applicant: Nec Microwave Inc ,  Necマイクロ波管株式会社

Inventor： NAKAZATO KOHEI

IPC: H02M3/28 ,  H01J23/34

CPC classification number: H02M3/155 ,  Y10T307/297

Abstract: PROBLEM TO BE SOLVED: To provide a power supply further reducing size and costs, and to provide a high-frequency circuit system having the power supply. SOLUTION: There are provided: a transformer; a primary power supply for supplying an AC voltage having at least two frequencies to the primary winding of the transformer; and a filter circuit that has a different amount of attenuation depending on the frequency of an AC voltage and is connected to the secondary winding of the transformer. The frequency of the AC voltage supplied to the primary winding of the transformer is controlled so that a desired AC voltage is outputted from the filter circuit connected to the secondary winding of the transformer. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供进一步减小尺寸和成本的电源，并提供具有电源的高频电路系统。

解决方案：提供：变压器; 用于向变压器的初级绕组提供具有至少两个频率的交流电压的主电源; 以及根据AC电压的频率具有不同的衰减量并且连接到变压器的次级绕组的滤波器电路。 控制提供给变压器的初级绕组的AC电压的频率，使得从连接到变压器次级绕组的滤波电路输出所需的AC电压。 版权所有（C）2008，JPO＆INPIT