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1. 发明授权

US09357591B2 High-frequency heating apparatus 有权
标题翻译：高频加热装置
公开(公告)号：US09357591B2
公开(公告)日：2016-05-31
申请号：US10571846
申请日：2004-10-15
申请人： Hideaki Moriya , Haruo Suenaga , Hisashi Morikawa , Shinichi Sakai , Toyotsugu Matsukura , Nobuo Shirokawa
发明人： Hideaki Moriya , Haruo Suenaga , Hisashi Morikawa , Shinichi Sakai , Toyotsugu Matsukura , Nobuo Shirokawa
IPC分类号： H05B6/68
CPC分类号： H05B6/681 , Y02B40/143
摘要： A resonance type high frequency heating apparatus comprising; a direct current power supply; a series connection circuit consisting of a pair of semiconductor switching elements connected in parallel to the direct current power supply; another series connection circuit having a primary coil of a leakage transformer and a capacitor connected to both ends of one of the pair of semiconductor switching elements; and a drive means for driving each of the pair of semiconductor switching elements; wherein a variable dead time preparation circuit is provided in the drive means, and the variable dead time preparation circuit enables dead time to remain constant at below a predetermined frequency and causes the dead time to increase sharply at a point above a predetermined frequency.
摘要翻译：一种共振型高频加热装置，包括：直流电源; 串联连接电路，由与直流电源并联连接的一对半导体开关元件构成; 另一个串联连接电路，其具有泄漏变压器的初级线圈和连接到该对半导体开关元件之一的两端的电容器; 以及用于驱动所述一对半导体开关元件中的每一个的驱动装置; 其中在所述驱动装置中设置可变死区时间准备电路，并且所述可变死区时间准备电路使得死区时间在低于预定频率下保持恒定，并且使得所述死区时间在高于预定频率的点处急剧增加。

2. 发明授权

US08492687B2 Power control apparatus for high-frequency dielectric heating and power control method for the same 有权
标题翻译：用于高频介质加热和功率控制方法的功率控制装置相同
公开(公告)号：US08492687B2
公开(公告)日：2013-07-23
申请号：US12620824
申请日：2009-11-18
申请人： Haruo Suenaga , Kenji Yasui , Shinichi Sakai , Nobuo Shirokawa , Hideaki Moriya , Manabu Kinoshita
发明人： Haruo Suenaga , Kenji Yasui , Shinichi Sakai , Nobuo Shirokawa , Hideaki Moriya , Manabu Kinoshita
IPC分类号： H05B6/66 , H05B6/68
CPC分类号： H05B6/685 , Y02B40/143
摘要： A power control unit for high-frequency dielectric heating is provided, and includes an input current detection section for detecting input current from the AC power supply to the inverter circuit and outputting input current waveform information. A conversion section converts the input current waveform information into a drive signal of the switching transistor of the inverter circuit so that instantaneous fluctuation of the input current waveform information is suppressed. A mix circuit mixes the input current waveform information and power control information for controlling so that current or voltage at an arbitrary point of the inverter circuit becomes a predetermined value and generates an on voltage signal. The conversion section converts the on voltage signal into the drive signal so that the on time is shortened in the portion where the input current is large and that the on time is prolonged in the portion where the input current is small.
摘要翻译：提供了一种用于高频介电加热的功率控制单元，并且包括用于检测来自AC电源到逆变器电路的输入电流并输出输入电流波形信息的输入电流检测部分。转换部分将输入电流波形信息转换成逆变器电路的开关晶体管的驱动信号，从而抑制输入电流波形信息的瞬时波动。混合电路混合输入电流波形信息和用于控制的功率控制信息，使得逆变器电路的任意点处的电流或电压变为预定值，并产生导通电压信号。转换部分将导通电压信号转换为驱动信号，使得在输入电流较大的部分中导通时间缩短，并且输入电流小的部分导通时间延长。

3. 发明授权

US08217323B2 High-frequency heating device 有权
标题翻译：高频加热装置
公开(公告)号：US08217323B2
公开(公告)日：2012-07-10
申请号：US10599431
申请日：2005-04-04
申请人： Haruo Suenaga , Hideaki Moriya , Shinichi Sakai , Hisashi Morikawa , Toyotsugu Matsukura , Nobuo Shirokawa
发明人： Haruo Suenaga , Hideaki Moriya , Shinichi Sakai , Hisashi Morikawa , Toyotsugu Matsukura , Nobuo Shirokawa
IPC分类号： H05B6/66
CPC分类号： H05B6/681 , H05B6/685 , Y02B40/143
摘要： An object of the present invention is to provide an inverter circuit in which soft start can be implemented by a simple circuit added thereto. In high-frequency heating apparatus for driving a magnetron, a DC power supply is chopped by two semiconductor switching devices, and this is output as an AC current through a resonance circuit. The high-frequency heating apparatus includes a dead time generation circuit for turning off the semiconductor switching devices concurrently. In the high-frequency heating apparatus, a drive unit for driving the aforementioned semiconductor switching devices has a function of limiting the lowest frequency of a frequency with which the semiconductor switching devices are driven. The aforementioned lowest frequency is set to be high at the beginning of operation of the high-frequency heating apparatus, and the aforementioned lowest frequency is set to be lower gradually thereafter.
摘要翻译：本发明的目的是提供一种逆变器电路，其中可以通过添加到其中的简单电路来实现软启动。在用于驱动磁控管的高频加热装置中，由两个半导体开关器件将直流电源切断，并通过谐振电路作为交流电流输出。高频加热装置包括用于同时关闭半导体开关装置的死区时间产生电路。在高频加热装置中，用于驱动上述半导体开关器件的驱动单元具有限制驱动半导体开关器件的频率的最低频率的功能。在高频加热装置的运转开始时，将上述最低频率设定得较高，之后将上述最低频率逐渐降低。

4. 发明授权

US08017893B2 High-frequency heating apparatus 有权
标题翻译：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
申请人： Haruo Suenaga , Hideaki Moriya , Shinichi Sakai , Hisashi Morikawa , Toyotsugu Matsukura , Nobuo Shirokawa
发明人： Haruo Suenaga , Hideaki Moriya , Shinichi Sakai , Hisashi Morikawa , Toyotsugu Matsukura , Nobuo Shirokawa
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。

5. 发明授权

US07960966B2 State detection device for detecting operation state of high-frequency heating apparatus 有权
公开(公告)号：US07960966B2
公开(公告)日：2011-06-14
申请号：US12651229
申请日：2009-12-31
申请人： Hideaki Moriya , Nobuo Shirokawa , Haruo Suenaga , Shinichi Sakai , Manabu Kinoshita
发明人： Hideaki Moriya , Nobuo Shirokawa , Haruo Suenaga , Shinichi Sakai , Manabu Kinoshita
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.

6. 发明申请

US20090272735A1 POWER CONTROL UNIT FOR HIGH-FREQUENCY DIELECTRIC HEATING AND CONTROL METHOD THEREOF 审中-公开
标题翻译：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
申请人： Haruo Suenaga , Kenji Yasui , Shinichi Sakai , Nobuo Shirokawa , Hideaki Moriya , Manabu Kinoshita
发明人： Haruo Suenaga , Kenji Yasui , Shinichi Sakai , Nobuo Shirokawa , Hideaki Moriya , Manabu Kinoshita
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。

7. 发明申请

US20090079353A1 MAGNETRON DRIVE POWER SUPPLY 审中-公开
标题翻译： 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
申请人： Shinichi Sakai , Nobuo Shirokawa , Haruo Suenaga , Hideaki Moriya , Manabu Kinoshita
发明人： Shinichi Sakai , Nobuo Shirokawa , Haruo Suenaga , Hideaki Moriya , Manabu Kinoshita
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。

8. 发明申请

US20080061055A1 High Frequency Heating Apparatus 有权
标题翻译：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
申请人： Hideaki Moriya , Haruo Suenaga , Shinichi Sakai , Nobuo Shirokawa , Manabu Kinoshita
发明人： Hideaki Moriya , Haruo Suenaga , Shinichi Sakai , Nobuo Shirokawa , Manabu Kinoshita
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。

9. 发明申请

US20070175890A1 High-frequency heating apparatus 有权
公开(公告)号：US20070175890A1
公开(公告)日：2007-08-02
申请号：US10599670
申请日：2005-04-26
申请人： Haruo Suenaga , Hideaki Moriya , Shinichi Sakai , Hisashi Morikawa , Nobuo Shirokawa , Manabu Kinoshita
发明人： Haruo Suenaga , Hideaki Moriya , Shinichi Sakai , Hisashi Morikawa , Nobuo Shirokawa , Manabu Kinoshita
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.

10. 发明授权

US06970065B2 Transformer and transformer unit having the same 有权
标题翻译：变压器和变压器单元具有相同的功能
公开(公告)号：US06970065B2
公开(公告)日：2005-11-29
申请号：US10663634
申请日：2003-09-16
申请人： Shinichi Sakai , Keiichi Satou , Kenji Yasui , Haruo Suenaga , Hisashi Morikawa , Yoshitaka Oda , Nobuo Shirokawa
发明人： Shinichi Sakai , Keiichi Satou , Kenji Yasui , Haruo Suenaga , Hisashi Morikawa , Yoshitaka Oda , Nobuo Shirokawa
IPC分类号： H01F5/04 , H01F27/06 , H01F27/28 , H01F27/32 , H01F27/40 , H01F30/00 , H01F41/10 , H02M7/00 , H05B6/66 , H05K1/02 , H05K1/18 , H01F27/30
CPC分类号： H05B6/662 , H01F5/04 , H01F27/325 , H01F27/40 , H01F41/10 , H01F2027/065 , H01F2038/003 , H02M7/003 , H05K1/0254 , H05K1/18
摘要： It is an object to decrease an occupied space in a printed board to carry out space saving and to reduce the size of a unit without sacrificing the performance of a transformer and increasing a cost.A transformer 11 is constituted by a bobbin 13 having at least a primary winding 15 and a secondary winding 17 wound therearound and a core 21, and the side surface of the bobbin 13 is provided with a component holding section for holding high-voltage components such as a capacitor 31 and a diode 33 which constitute a voltage doubler rectifying circuit for rectifying a high voltage having a high frequency from the secondary winding 15.
摘要翻译：本发明的目的是减少印刷电路板的占用空间，从而节省空间并减小单元的尺寸，而不会牺牲变压器的性能并增加成本。变压器11由具有至少初级绕组15和绕过绕组21的次级绕组17的绕线管13构成，线轴13的侧面设置有用于保持高压部件的部件保持部作为构成用于从次级绕组15整流具有高频的高电压的倍压整流电路的电容器31和二极管33。

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