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71.发明授权
公开(公告)号：US4074101A
公开(公告)日：1978-02-14
申请号：US657307
申请日：1976-02-11
IPC分类号： H05B6/12 , H01F30/00 , H02M5/22 , H02M5/27 , H03B9/10 , H05B6/06 , H05B6/10 , H05B6/68 , H05B5/04
CPC分类号： H05B6/1209 , H02M5/22 , H02M5/27 , H03B9/10 , H05B6/062 , H05B6/6488 , Y02B40/123 , Y10S55/36
摘要： An induction heating apparatus comprising a pair of inversely parallel-connected gate-controlled switching devices connected to an alternating current source, a resonant circuit including an induction heating coil and a variable frequency gating circuit for firing the switching devices to generate oscillations through the conducting device and the induction heating coil. The switching devices are gated into conduction in succession in a first order during the positive half cycle of the alternating current and in a reversed order during the negative half cycle. A zero crosspoint detector is provided to inhibit gating when the source voltage is near zero crosspoint level and to control the gating frequency in accordance with the instantaneous value of the source voltage to increase the turn-off time of the switching devices for lower input source voltage.
摘要翻译： 一种感应加热装置，包括连接到交流电源的一对逆并联的门控开关装置，包括感应加热线圈的谐振电路和用于点火开关装置以产生通过导电装置的振荡的可变频率选通电路 和感应加热线圈。 开关器件在交流电的正半周期期间以一级顺序被选通导通，并且在负半周期期间以相反的顺序被选通。 提供零交叉点检测器以在源电压接近零交叉点电平时禁止门控，并根据源电压的瞬时值来控制门控频率，以增加用于较低输入电源电压的开关器件的关断时间 。
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公开(公告)号：US3873883A
公开(公告)日：1975-03-25
申请号：US40054673
申请日：1973-09-25
申请人： BASLER ELECTRIC CO
发明人： SIEVERS CARL J , WAGNER RONALD C
摘要： A power supply for a magnetron which provides a microwave output and has an anode, a cathode, and a filament circuit. The magnetron has proper and improper modes of oscillation. The supply includes a step-up transformer which has a primary winding for connection to an a.c. power source and at least one secondary winding. Means, including a full wave voltage-multiplying rectifier circuit interconnected with the secondary winding and the anode-cathode circuit of the magnetron, apply a time-varying voltage across the anode-cathode circuit of said magnetron. The filament circuit of the magnetron and the anode-cathode circuit thereof are simultaneously energized; and the application of the time-varying voltage across the anode-cathode circuit insures that the magnetron goes into its proper mode of oscillation when the filament has substantially reached its operating temperature.
摘要翻译： 用于提供微波输出并具有阳极，阴极和灯丝电路的磁控管的电源。 磁控管具有适当和不正确的振荡模式。 该电源包括升压变压器，其具有用于连接到直流的初级绕组。 电源和至少一个次级绕组。 包括与次级绕组和磁控管的阳极 - 阴极电路互连的全波升压整流电路的装置在所述磁控管的阳极 - 阴极电路两端施加时变电压。 磁控管的灯丝电路及其阳极 - 阴极电路同时通电; 并且在阳极 - 阴极电路两端施加时变电压确保当灯丝基本上达到其工作温度时磁控管进入其适当的振荡模式。
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公开(公告)号：US3760291A
公开(公告)日：1973-09-18
申请号：US3760291D
申请日：1971-11-26
申请人： LEVINSON M
发明人： LEVINSON M
摘要： A power supply for varying the power output of a heating magnetron which includes a variable resistance in series with said magnetron and a source of power for said magnetron, and where the lowest resistance section of said variable resistance is designed to carry more current than the other resistance sections.
摘要翻译： 用于改变加热磁控管的功率输出的电源，其包括与所述磁控管串联的可变电阻和用于所述磁控管的电源，并且其中所述可变电阻的最低电阻部分被设计为承载比其他电流更多的电流 电阻部分。
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公开(公告)号：US3752948A
公开(公告)日：1973-08-14
申请号：US3752948D
申请日：1971-10-01
发明人： PETERSON D
CPC分类号： H03B9/10
摘要： A circuit for and method of operating microwave oven apparatus is disclosed including means for the momentary interruption of the starting cycle at a predetermined time interval. Such operation will shift the operating mode of the energy generator as well as the voltage level from a higher to a lower frequency to prolong life and enhance efficiency. The invention is particularly suited for permanent magnet type energy generators for use in microwave oven apparatus where continuous operation is utilized. The invention may be implemented in all types of microwave oven apparatus simply and economically.
摘要翻译： 公开了一种用于操作微波炉装置的电路和方法，包括用于以预定时间间隔瞬间中断起动周期的装置。 这种操作将能量发生器的运行模式以及电压电平从较高频率转移到较低频率以延长使用寿命并提高效率。 本发明特别适用于使用连续操作的微波炉装置中的永磁式能量发生器。 本发明可以简单且经济地实现在所有类型的微波炉设备中。
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公开(公告)号：US3732504A
公开(公告)日：1973-05-08
申请号：US3732504D
申请日：1969-07-14
申请人： LEVINSON M
发明人： LEVINSON M
IPC分类号： H03B9/10
CPC分类号： H03B9/10
摘要： A power supply circuit for varying the power output of a heating magnetron which includes controlling a variable inductance to tune a capacitance to resonance to vary the power, and which comprises a variable inductance in series with the magnetron.
摘要翻译： 一种用于改变加热磁控管的功率输出的电源电路，其包括控制可变电感以将电容调谐到谐振以改变功率，并且其包括与磁控管串联的可变电感。
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公开(公告)号：US3671847A
公开(公告)日：1972-06-20
申请号：US3671847D
申请日：1970-08-28
发明人： SHIBANO TAKASHI
CPC分类号： H05B6/666 , H01F2038/003 , H03B9/10 , H05B6/687
摘要： A compact power supply for driving a magnetron to oscillation used for an electronic cooking range. A transformer having a three-legged magnetic core with at least primary, secondary and tertiary windings. The primary winding is divided into two halves, each wound on a separate leg of the core and switching means are provided for changing the direction of the magnetic flux produced by one half of the winding with respect to the other half. The secondary winding is linked by the flux from each half of the primary winding and is arranged to selectively provide the magnetron with high voltage in accordance with the position of the switching means. The tertiary winding, which is arranged to provide voltage to the magnetron heater, is linked to the flux produced by only one of the halves of the primary winding winding regardless of the position of the switching means.
摘要翻译： 用于将磁控管驱动到用于电子烹饪范围的振荡器的紧凑型电源。 具有至少具有三次绕组的三脚磁芯的变压器。 初级绕组被分成两半，每个绕组分别缠绕在芯的单独的腿上，并且提供开关装置用于改变绕组的一半相对于另一半产生的磁通的方向。 次级绕组通过来自初级绕组的每一半的磁通量而连接，并且被布置成根据开关装置的位置选择性地提供具有高电压的磁控管。 布置成向磁控管加热器提供电压的三次绕组与仅由初级绕组绕组的一半半径产生的磁通相关联，而与切换装置的位置无关。
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公开(公告)号：US3651371A
公开(公告)日：1972-03-21
申请号：US3651371D
申请日：1970-09-03
申请人： ROPER CORP
发明人： TINGLEY EGBERT M
CPC分类号： H03B9/10 , Y10T307/951
摘要： A power supply for a permanent magnet type magnetron tube in which a high impedance transformer furnishes power to two halfwave, oppositely poled voltage doubler circuits in which a time delay is provided, responsive to the load current of the magnetron, to delay the turning on of one of the half-wave voltage doubler circuits to insure operation in the desired oscillating mode. Switching of the second half-wave voltage doubler into the circuit is accomplished by normally open contacts on a main relay, preferably shunted by high value resistor. In the preferred modification additional time delay is achieved by employing an auxiliary time delay relay to inhibit operation of the main relay, thereby to establish successive low power and high power modes. The filament of the magnetron is preferably fed by a separate filament transformer turned on at the same time as the high impedance transformer, but which includes means for lowering the filament voltage incident to switching to the high power mode.
摘要翻译： 一种用于永磁式磁控管的电源，其中高阻抗变压器响应于磁控管的负载电流而向两个半波相对极化的倍增电路提供电力，其中提供延时，以延迟转向 一个半波倍压电路，以确保在所需的振荡模式下工作。 将第二半波倍压器切换到电路中通过主继电器上的常开触点实现，优选由高值电阻分流。 在优选的修改中，通过使用辅助时间延迟继电器来禁止主继电器的操作来实现附加的时间延迟，由此建立连续的低功率和高功率模式。 磁控管的细丝优选地通过与高阻抗变压器同时导通的单独的灯丝变压器进行馈送，但是其包括用于降低入射以切换到高功率模式的灯丝电压的装置。
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79.发明授权Carrier phase selection type semiconductor device for oscillation and amplification o microwaves 失效用于振荡和放大的载波相位选择型半导体器件微波
公开(公告)号：US3398301A
公开(公告)日：1968-08-20
申请号：US43800965
申请日：1965-03-08
申请人： HITACHI LTD
发明人： YOSHIHISA SUZUKI
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公开(公告)号：US3302060A
公开(公告)日：1967-01-31
申请号：US38037464
申请日：1964-07-06
申请人： PHILIPS CORP
IPC分类号： G05F1/56 , H01J23/10 , H01J25/587 , H03B9/10 , H05B6/66
CPC分类号： H05B6/666 , G05F1/56 , H01J23/10 , H01J25/587 , H03B9/10
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