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1.发明授权High-frequency heating apparatus having start control device for magnetron power supply circuit 失效具有用于磁控管供电电路的启动控制装置的高频加热装置
公开(公告)号：US4967051A
公开(公告)日：1990-10-30
申请号：US223949
申请日：1988-07-25
申请人： Naoyoshi Maehara , Haruo Suenaga , Kazuho Sakamoto , Takashi Niwa , Kimiaki Yamaguchi , Takahiro Matsumoto
发明人： Naoyoshi Maehara , Haruo Suenaga , Kazuho Sakamoto , Takashi Niwa , Kimiaki Yamaguchi , Takahiro Matsumoto
CPC分类号： H05B6/6432 , H05B6/685 , Y02B40/143 , Y10S323/901
摘要： A high-frequency heating apparatus comprises a semiconductor power converter which is supplied with electric power from a commercial power supply, a radio wave radiation section which is energized by the semiconductor power converter, a control section which controls the operation of a semiconductor element of the semiconductor power converter, and a start control section which controls the operation of the control section at the start time of the high-frequency heating apparatus. The start control section controls the operation of the control section so that the radio wave output power from the radio wave radiation section at the start time of the high-frequency heating apparatus becomes greater than that in the steady operation state thereof, whereby optimization of the performance and price of the heating apparatus can be realized.
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公开(公告)号：US4900989A
公开(公告)日：1990-02-13
申请号：US189166
申请日：1988-05-02
申请人： Haruo Suenaga , Naoyoshi Maehara , Kazuho Sakamoto , Takahiro Matsumoto , Takashi Niwa , Daisuke Bessyo
发明人： Haruo Suenaga , Naoyoshi Maehara , Kazuho Sakamoto , Takahiro Matsumoto , Takashi Niwa , Daisuke Bessyo
CPC分类号： H05B6/666 , H02M3/33507 , H02M3/33523 , H02M7/537 , H03B9/10
摘要： A magnetron feeding apparatus includes an inverter circuit for converting DC power into high-frequency power; a high-tension transformer for converting the high-frequency power into high-tension power to be supplied to the magnetron; an output voltage detector for detecting the output voltage of the high-tension transformer; an input current detector for detecting the input current into the inverter circuit; a power controller for controlling the operation of the inverter circuit in response to the output voltage detected by the output voltage detector and the input current detected by the input current detector.
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3.发明授权Power supply for a magnetron having a rectifying circuit, switching circuit, and transformer 失效具有整流电路，开关电路和变压器的磁控管的电源
公开(公告)号：US4886951A
公开(公告)日：1989-12-12
申请号：US189170
申请日：1988-05-02
申请人： Takahiro Matsumoto , Haruo Suenaga , Naoyoshi Maehara , Kazuho Sakamoto , Takashi Niwa , Daisuke Bessyo , Shigeru Kusunoki , Takao Shitaya
发明人： Takahiro Matsumoto , Haruo Suenaga , Naoyoshi Maehara , Kazuho Sakamoto , Takashi Niwa , Daisuke Bessyo , Shigeru Kusunoki , Takao Shitaya
IPC分类号： H05B6/68 , H01F27/30 , H01J20060101 , H02M3/335 , H02M7/527 , H03B9/10 , H03C20060101 , H05B6/66
CPC分类号： H05B6/666 , H02M3/33507 , H02M3/33523 , H03B9/10 , H05B2206/043
摘要： A power supply for a magnetron includes a rectifying circuit, a switching circuit, and a transformer. The rectifying circuit converts an ac-power source signal into a dc-power source signal. The switching circuit converts the dc-power source signal output from the rectifying circuit into a high-frequency signal in accordance with a driving circuit. A transformer connected to the switching circuit converts the high-frequency signal into a high-voltage high-frequency signal for driving the magnetron. The transformer includes a primary winding connected to the switching circuit, a secondary winding connected to the magnetron, a tertiary winding connected to a cathode heater of said magnetron, and a fourth winding connected to the driving circuit. The coupling coefficient between the fourth winding and the second winding is larger than the coupling coefficient between the fourth winding and the primary winding.
摘要翻译： 用于磁控管的电源，其具有逆变器电路，高压变压器，磁控管。 为了缩短从磁控管的功率供给到阴极至通过振荡开始到达额定输出所需的时间，提供了用于检测磁控管的振荡开始时间点的机构， 适于在振荡之后立即进行控制操作以进行额定输出。 在高压变压器上设置用于输出电压检测的绕组，以检测磁控管的振荡。
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公开(公告)号：US5091617A
公开(公告)日：1992-02-25
申请号：US526521
申请日：1990-05-22
申请人： Naoyoshi Maehara , Takahiro Matsumoto , Kazuho Sakamoto , Daisuke Bessyo , Takashi Niwa , Shigeru Kusunoki , Takao Shitaya
发明人： Naoyoshi Maehara , Takahiro Matsumoto , Kazuho Sakamoto , Daisuke Bessyo , Takashi Niwa , Shigeru Kusunoki , Takao Shitaya
摘要： A high-frequency heating apparatus comprises an inverter including a semiconductor switch and a resonance capacitor, a boosting transformer for a supplying high-voltage power and heater to a magnetron an inductance device inserted in the heater circuit of the magnetron, and an inverter control unit for controlling the semiconductor switch. The inverter control unit is controlled by a start control at the start time of the inverter so that the conduction time of the semiconductor switch becomes shorter than that under a normal operating condition and the non-conduction time thereof becomes longer than that under a normal operating condition and so that the switching period of the semiconductor switch becomes substantially an integral multiple of a resonance period of the resonance circuit formed by the resonance capacitor, whereby the operating frequency of the inverter at the time of starting thereof becomes substantially equal to its normal operating frequency.
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公开(公告)号：US4812960A
公开(公告)日：1989-03-14
申请号：US131717
申请日：1987-12-11
申请人： Kazuho Sakamoto , Takao Shitaya , Shigeru Kusunoki , Naoyoshi Maehara , Takashi Niwa , Takahiro Matsumoto , Daisuke Bessyo
发明人： Kazuho Sakamoto , Takao Shitaya , Shigeru Kusunoki , Naoyoshi Maehara , Takashi Niwa , Takahiro Matsumoto , Daisuke Bessyo
CPC分类号： H05B6/666
摘要： A power feeding apparatus which is used in a high-frequency heater or the like, is further power-converted by a transformer after the power provided by the power supply such as commercial power supply or the like has been converted into the high-frequency power by a transducer including a semiconductor, feeds the converted power into the load having the unidirectional electrical current characteristics of magnetron or the like. The generating voltage is dropped so that the stable power may be fed without the corona discharge and the acr discharge to be caused, the insulating withstand voltage between the windings of the transformer, the pulling of the wirings, and the insulating withstand voltage may be reduced.
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公开(公告)号：US4999762A
公开(公告)日：1991-03-12
申请号：US500254
申请日：1990-03-27
CPC分类号： H05K1/0256 , H05K1/0262 , H05K1/0219 , H05K2201/0969 , H05K2201/09781 , H05K2201/09972
摘要： A high voltage power source device which comprises an electric power source; a low voltage circuit constituted by an inverter circuit including a semiconductor switching element and a capacitor for converting an electric power from the electric power source into a high frequency electric power; a magnetron; a high voltage transformer for converting the high frequency electric power into a high voltage and supplying the high voltage to the magnetron; and a printed circuit board having an electric wiring system formed thereon for connection with and support thereon of the inverter circuit and a high voltage circuit for the voltage boosted by the high voltage transformer. The printed circuit board has separate areas defined therein, and the low and high voltage circuits are formed respectively on the separate areas of the printed circuit board. The printed circuit board includes a patterned grounding conductor formed at the boundary between the separate areas and also has either a plurality of openings defined therein so as to extend completely through a thickness of the printed circuit in alignment with the patterned grounding conductor, or a plurality of generally elongated electroconductive pieces each having opposite ends connected with the patterned grounding conductor.
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公开(公告)号：US4851629A
公开(公告)日：1989-07-25
申请号：US208490
申请日：1988-06-20
IPC分类号： H01J23/15
CPC分类号： H01J23/15
摘要： In a high-frequency heating device for driving a magnetron at a high frequency between 20 and 50 KHz, the magnetron is provided with a plurality of choke coils, each of which consists of a magnetic core having a sectional area between 40 to 70 mm.sup.2 and an electric wire around the magnetic core and having a diameter between 1.2 and 1.6 mm. In such a construction, the magnetron can be driven, using the high frequency with reduced thermal loss of the choke coil and restrained heat generation.
摘要翻译： 在用于驱动20〜50KHz之间的高频磁控管的高频加热装置中，磁控管设置有多个扼流线圈，每个扼流线圈由截面积在40至70mm 2之间的磁芯和 围绕磁芯的电线，其直径在1.2和1.6mm之间。 在这种结构中，可以使用高频率驱动磁控管，减少扼流圈的热损失并抑制发热。
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公开(公告)号：US4704674A
公开(公告)日：1987-11-03
申请号：US863251
申请日：1986-05-14
CPC分类号： H05B6/66 , H02M3/335 , Y02B40/143
摘要： A power feed apparatus in which a means for by-passing the current reversely biasing the load is used for the normally used rectification means when the power converted by the transformer is fed to the reversely blocking characteristics like magnetron, whereby the price is lower and the shape is more compact without the use of the rectifier, because of the combination construction of the reverse bias current by-pass means and the inductance element provided in the load current path with respect to the non-linear load like the magnetron.
摘要翻译： 当将由变压器转换的功率馈送到诸如磁控管的反向阻塞特性时，将用于使逆向施加负载的电流旁路的装置用于常用的整流装置，由此价格较低，并且 由于反向偏置电流旁路装置和负载电流路径中设置的电感元件相对于诸如磁控管的非线性负载的组合结构，因此形状更紧凑，不需要使用整流器。
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公开(公告)号：US06624579B2
公开(公告)日：2003-09-23
申请号：US10130222
申请日：2002-05-15
申请人： Kenji Yasui , Takeshi Kitaizumi , Yoshiaki Ishio , Hideki Omori , Kazuho Sakamoto , Makoto Mihara , Haruo Suenaga , Hideaki Moriya , Emiko Ishizaki , Hisashi Morikawa
发明人： Kenji Yasui , Takeshi Kitaizumi , Yoshiaki Ishio , Hideki Omori , Kazuho Sakamoto , Makoto Mihara , Haruo Suenaga , Hideaki Moriya , Emiko Ishizaki , Hisashi Morikawa
IPC分类号： H01J2550
CPC分类号： H05B6/685 , Y02B40/143
摘要： It is provided a magnetron drive power supply wherein a series connection body of first and second semiconductor switch elements that can be brought into reverse conduction and a series connection body of first and second diodes are connected in parallel, first and second capacitors are connected in parallel to the first and second diodes, a series circuit of a commercial power supply and a primary winding of a high-voltage transformer is connected between a connection point of the first and second semiconductor switch elements that can be brought into reverse conduction and a connection point of the first and second diodes, and output of a secondary winding of the high-voltage transformer energizes a magnetron through a high-voltage rectification circuit.
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公开(公告)号：US06362463B1
公开(公告)日：2002-03-26
申请号：US09762334
申请日：2001-04-26
申请人： Daisuke Bessyo , Kenji Yasui , Kazuho Sakamoto , Makoto Mihara , Shinichi Sakai , Haruo Suenaga , Yoshiaki Ishio , Hiokaki Moriya , Hidetomo Nagata , Hideki Omori
发明人： Daisuke Bessyo , Kenji Yasui , Kazuho Sakamoto , Makoto Mihara , Shinichi Sakai , Haruo Suenaga , Yoshiaki Ishio , Hiokaki Moriya , Hidetomo Nagata , Hideki Omori
IPC分类号： H05B668
CPC分类号： H05B6/666 , H05B2206/043 , H05K1/0254 , H05K1/18
摘要： A high frequency heating apparatus including a circuit for driving a magnetron. A circuit comprises a leakage transformer, a second capacitor connected in series to primary coil of said leakage transformer, a second switching device connected in parallel with a series circuit of said primary coil and second capacitor, a first capacitor connected in parallel with said second switching device, and a first switching device connected in series to said second switching device. Under a structure of the present invention, the switching device and the leakage transformer, both being the key components of the circuit, may respectively be used in common either on a circuit of 200V-240V commercial power supply or on a circuit of 100V-120V commercial power supply. This enables volume production of the key components, which leads to a benefit of reduced cost of the components as well as the cost of heating apparatus.
摘要翻译： 一种高频加热装置，包括用于驱动磁控管的电路。 电路包括泄漏变压器，与所述泄漏变压器的初级线圈串联连接的第二电容器，与所述初级线圈和第二电容器的串联电路并联连接的第二开关器件，与所述第二开关并联连接的第一电容器 装置和与所述第二开关装置串联连接的第一开关装置。 在本发明的结构下，作为电路的关键部件的开关装置和泄漏变压器可以分别在200V-240V商用电源的电路上或在100V-120V的电路上共同使用 商业电源。 这使得能够批量生产关键部件，这导致部件成本降低以及加热装置的成本的益处。
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