High-frequency heating apparatus
    21.
    发明授权
    High-frequency heating apparatus 有权
    高频加热装置

    公开(公告)号:US08017893B2

    公开(公告)日:2011-09-13

    申请号:US10599961

    申请日:2005-04-22

    IPC分类号: H05B6/64

    CPC分类号: H05B6/666 H02M3/33569

    摘要: A purpose of the present invention is to provide an inverter circuit capable of suppressing an overshooting phenomenon of an input current at an instantaneous time when an initiating operation of the inverter circuit is switched to the normal operation thereof, and thus, capable of preventing damages of IGBTs and a magnetron.In a high frequency heating apparatus comprising: a control signal forming circuit for forming a control signal from a difference between an input current of an AC power supply and a reference current; a frequency modulated signal forming circuit for correcting rectified voltage/rectified current which are obtained by rectifying the AC voltage/current of the AC power supply based upon the control signal of the control signal forming circuit; and a dead time forming circuit for receiving the output of the frequency modulated signal forming circuit, a control signal converting circuit having a function capable of further lowering the value of the control signal is provided between the control signal forming circuit and the frequency modulated signal forming circuit.

    摘要翻译: 本发明的目的是提供一种逆变器电路,其能够在将逆变器电路的启动操作切换到其正常操作的瞬时时抑制输入电流的过冲现象,从而能够防止损坏 IGBT和磁控管。 一种高频加热装置,包括:控制信号形成电路,用于根据交流电源的输入电流与参考电流之间的差异形成控制信号; 基于所述控制信号形成电路的控制信号,对所述交流电源的交流电压/电流进行整流而得到的整流电压/整流电流的频率调制信号形成电路; 以及用于接收频率调制信号形成电路的输出的死区时间形成电路,具有能够进一步降低控制信号的值的控制信号转换电路被提供在控制信号形成电路和调制信号形成之间 电路。

    State detection device for detecting operation state of high-frequency heating apparatus

    公开(公告)号:US07960966B2

    公开(公告)日:2011-06-14

    申请号:US12651229

    申请日:2009-12-31

    IPC分类号: G01R29/00

    CPC分类号: H05B6/666 H05B2206/043

    摘要: An operating state detection technique is provided which makes it possible to accurately detect an abnormality of a high-frequency heating apparatus. An anode current detected by the anode current detection resistor 40 of a magnetron is inputted into the A/D converter terminal of a microcomputer 27 on a control panel circuit board side. The current is subjected to an analog-to-digital conversion to thereby obtain an anode voltage IaDC value. The microcomputer 27 determines an operating state based on a plurality of the anode voltage IaDC values thus read. Further, the microcomputer 27 obtains a summed value of the IaDC values corresponding to one period of the revolution of rotary antennas 68, 69 to thereby determines the operating state of the high-frequency heating apparatus 100 based on the summed value. According to the aforesaid IaDC value reading method, it makes it possible to accurately detect an abnormality without an erroneous operation also in correspondence to the change of the feeding distribution. Further, the microcomputer 27 changes, in accordance with the set output of the high-frequency heating apparatus, a threshold value used for determining the abnormality and a changing value (increasing amount) from the start of the operation with respect to the change of the output of the apparatus and the operating state of a heated subject etc., whereby it makes it possible to accurately detect an abnormality without an erroneous operation.

    POWER CONTROL UNIT FOR HIGH-FREQUENCY DIELECTRIC HEATING AND CONTROL METHOD THEREOF
    23.
    发明申请
    POWER CONTROL UNIT FOR HIGH-FREQUENCY DIELECTRIC HEATING AND CONTROL METHOD THEREOF 审中-公开
    用于高频介电加热的功率控制单元及其控制方法

    公开(公告)号:US20090272735A1

    公开(公告)日:2009-11-05

    申请号:US12303035

    申请日:2007-05-31

    IPC分类号: H05B6/66

    CPC分类号: H05B6/685 Y02B40/143

    摘要: A power control unit for a high-frequency dielectric heating not affected by variations in the magnetron type or characteristic, and power supply voltage fluctuation, etc., is provided. The power control unit for a high-frequency dielectric heating has an input current detection section 71, 72 for detecting input current of an inverter 10 for rectifying 31 an AC power supply voltage 20, performing high-frequency switching of the voltage, and converting the voltage to high-frequency power. The power control unit for a high-frequency dielectric heating converts a switching frequency control signal 92 provided by mixing input current waveform information 90 and power control information 91 into a drive signal of a semiconductor switching element 3, 4 of the inverter.

    摘要翻译: 提供了不受磁控管类型或特性的变化以及电源电压波动等影响的高频电介质加热的功率控制单元。 用于高频电介质加热的功率控制单元具有用于检测逆变器10的输入电流的输入电流检测部分71,72,用于整流31交流电源电压20,执行电压的高频切换,并将 电压高频电源。 用于高频介电加热的功率控制单元将通过将输入电流波形信息90和功率控制信息91混合而提供的开关频率控制信号92转换成逆变器的半导体开关元件3,4的驱动信号。

    MAGNETRON DRIVE POWER SUPPLY
    24.
    发明申请
    MAGNETRON DRIVE POWER SUPPLY 审中-公开
    MAGNETRON驱动电源

    公开(公告)号:US20090079353A1

    公开(公告)日:2009-03-26

    申请号:US11914805

    申请日:2006-05-17

    IPC分类号: H05B6/66 H01J25/50

    CPC分类号: H05B6/66

    摘要: An object of the invention is to provide a magnetron drive power supply for performing stable inverter operation and good in development efficiency.According to the invention, the potential difference between emitter terminal potential (121) of a switching element (12) and minus terminal potential (101) of a rectifying device (1) can be minimized and stable switching operation and abnormal voltage detection can be realized. There can be provided an optimum magnetron drive power supply responsive to the power supply voltage and good in development efficiency because of unification of chassis, etc., with commonality of component placements, particularly ground connection positions (41) and filament output positions (42) of a magnetron drive power supply in the rated voltage range of 100 V to 120 V and a magnetron drive power supply in the rated voltage range of 200 V to 240 V.

    摘要翻译: 本发明的目的是提供一种用于执行稳定的逆变器操作并且具有良好的显影效率的磁控管驱动电源。 根据本发明,能够使开关元件(12)的发射极端子电位(121)与整流装置(1)的负极端子电位(101)之间的电位差最小化,能够实现稳定的开关动作和异常电压检测 。 可以提供响应于电源电压的最佳磁控管驱动电源,并且由于机架等的统一性,组件布置的特性,特别是接地连接位置(41)和灯丝输出位置(42)的共同性,可以提供良好的显影效率。 的额定电压范围为100 V至120 V的磁控管驱动电源和额定电压范围为200 V至240 V的磁控管驱动电源。

    High Frequency Heating Apparatus
    25.
    发明申请
    High Frequency Heating Apparatus 有权
    高频加热装置

    公开(公告)号:US20080061055A1

    公开(公告)日:2008-03-13

    申请号:US11577344

    申请日:2005-10-17

    IPC分类号: H05B6/64

    CPC分类号: H05B6/685 Y02B40/143

    摘要: The invention relates to a high frequency heating apparatus and provides a tracking method of a frequency modulation in order to prevent an extension of the harmonic current component of an oscillation threshold ebm which varies from moment to moment in accordance with a change in the temperature of a magnetron. A driving signal for driving a first semiconductor switching element (3) and a second semiconductor switching element (4) is transmitted to a driving control IC unit (14), and an input reference signal Ref is used to perform an input current fixed control. In this case, a variation amount of the input current of the input reference signal Ref is understood as an accumulation information POW and a constant is optimally configured in a resistor network in an ebm-tracking bias circuit (20). Sequentially, a portion in which an operating frequency ascends is provided by giving a bias to a frequency modulation waveform, and then a frequency modulation tracking is performed. In this manner, by easily dealing with the change in an oscillation threshold ebm resulting from the change in a temperature, the extension of the harmonic current component has been prevented.

    摘要翻译: 本发明涉及一种高频加热装置,并且提供了频率调制的跟踪方法,以便防止随时间变化的随时间变化的振荡阈值ebm的谐波电流分量的扩展 磁控管 用于驱动第一半导体开关元件(3)和第二半导体开关元件(4)的驱动信号被传送到驱动控制IC单元(14),并且输入参考信号Ref用于执行输入电流固定控制。 在这种情况下,输入参考信号Ref的输入电流的变化量被理解为累积信息POW,并且常数被优化地配置在ebm跟踪偏置电路(20)中的电阻网络中。 顺序地,通过给频率调制波形给出偏置来提供工作频率上升的部分,然后执行频率调制跟踪。 以这种方式,通过容易地处理由温度变化引起的振荡阈值ebm的变化,已经防止了谐波电流分量的延长。

    Image forming apparatus
    26.
    发明申请
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US20070280728A1

    公开(公告)日:2007-12-06

    申请号:US11517321

    申请日:2006-09-08

    IPC分类号: G03G21/18 G03G15/16

    CPC分类号: G03G21/1628 G03G2221/1687

    摘要: An image forming apparatus includes: a body; a transport belt that includes a transport face, and that transports the sheet while supporting the sheet on a transport face; a developer-image forming portion that forms a developer image on the sheet transported by transport belt; and a fixing device that includes a contact portion disposed lower position than the transport face, and that fixes the developer image on the sheet by the contact portion.

    摘要翻译: 一种图像形成装置,包括:主体; 传送带,其包括运送面,并且在将片材支撑在运送面上的同时运送片材; 在由传送带传送的片材上形成显影剂图像的显影剂图像形成部分; 以及固定装置,其包括设置在比传送面低的位置的接触部分,并且通过接触部分将显影剂图像固定在片材上。

    High-frequency heating apparatus
    27.
    发明申请

    公开(公告)号:US20070175890A1

    公开(公告)日:2007-08-02

    申请号:US10599670

    申请日:2005-04-26

    IPC分类号: H05B6/68

    CPC分类号: H05B6/666

    摘要: A purpose of the present invention is to provide an inverter circuit capable of firmly turning ON IGBTs under limited condition, while a heat loss and noise can be hardly produced in semiconductor switching elements. In a resonant type high frequency heating apparatus which is arranged by employing a DC power supply; a series connection circuit constructed of two semiconductor switching elements which are connected to the DC power supply; another series connection circuit constituted by a capacitor and a primary winding of a leakage transformer connected to both the terminals of one of the two semiconductor switching elements; and a driving means for driving the respective semiconductor switching elements respectively, a variable dead time forming circuit is provided in the driving means, while the variable dead time forming circuit makes a dead time constant at a switching frequency lower than, or equal to a predetermined switching frequency, and also, rapidly increases a dead time at a switching frequency higher than, or equal to the predetermined switching frequency. Furthermore, when the switching frequency becomes high, a limitation is provided by which the dead time is not further widened.

    Embolus forming in-vivo indwelling coil
    28.
    发明申请
    Embolus forming in-vivo indwelling coil 审中-公开
    栓塞形成体内留置线圈

    公开(公告)号:US20060217758A1

    公开(公告)日:2006-09-28

    申请号:US10541469

    申请日:2004-01-13

    IPC分类号: A61M29/00

    摘要: The present invention provides an embolus forming in-vivo indwelling coil with high flexibility which can be securely indwelled at a predetermined position and which permits a secured re-indwelling operation and thus has high safety and high operationality. An embolus forming in-vivo indwelling coil of the present invention includes a coil main body having flexibility and an stretch suppressing member which is provided on one or both of the inner and outer peripheries of the coil main body and which is made of a water-swellable polymer material for suppressing stretch of the coil main body by swelling with absorbed water. In the embolus forming in-vivo indwelling coil of the present invention, the water-swellable polymer material constituting the stretch suppressing member is preferably composed of a polyvinyl alcohol polymer.

    摘要翻译: 本发明提供具有高柔性的栓塞形成体内留置线圈,其可以牢固地留在预定位置,并且允许固定的再留置操作,因此具有高安全性和高操作性。 本发明的栓塞形成体内留置线圈包括具有柔性的线圈主体和设置在线圈主体的内周和外周的一个或两个上的拉伸抑制构件, 可膨胀的聚合物材料,用于通过用吸收的水膨胀来抑制线圈主体的拉伸。 在本发明的栓塞形成体内留置线圈中,构成拉伸抑制部件的水溶胀性高分子材料优选由聚乙烯醇系聚合物构成。

    Indwelling instrument for forming embolus
    29.
    发明申请
    Indwelling instrument for forming embolus 审中-公开
    用于形成栓塞的留置仪器

    公开(公告)号:US20060173488A1

    公开(公告)日:2006-08-03

    申请号:US10545992

    申请日:2004-02-19

    IPC分类号: A61M29/00

    摘要: Disclosed herein is an intracorporeally indwelling device for embolization, which is capable of being placed surly in an appointed site, capable of permiting surely performing a replacing operation of the intracorporeally indwelling device arranged once, and thus has high safety and high operating ability. The intracorporeally indwelling device for embolization of the invention comprises a flexible coiled body and an axial extension-controlling member having specified tensile break strength and provided in the interior of the coiled body so as to extend in an axial direction of the coiled body. The axial extension-controlling member is made up of a wire material having tensile break strength of at least 700 N/mm2 in the axial direction of the coiled body and a diameter of at most 25 μm.

    摘要翻译: 这里公开了一种用于栓塞的体内留置装置,其能够被放置在指定位置,能够确保执行一次布置的体内留置装置的替换操作,因此具有高安全性和高操作能力。 用于本发明的栓塞的体内留置装置包括具有特定的拉伸断裂强度的柔性卷绕体和轴向延伸控制构件,并且设置在螺旋体的内部中以沿着线圈体的轴向方向延伸。 轴向延伸控制构件由线状体的轴向上的拉伸断裂强度为700N / mm 2以上的线材构成,直径为25μm以下。