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公开(公告)号：US12009676B2
公开(公告)日：2024-06-11
申请号：US17964842
申请日：2022-10-12
申请人： Sichuan University
发明人： Yang Yang , Huacheng Zhu
摘要： A SWIPT (simultaneous wireless information and power transfer) device based on the modulation of power supply ripple of magnetron includes a magnetron power supply, a magnetron, an IF (intermediate frequency) signal generator and a first capacitor. The first and second cathode power lines are provided between two ends of the magnetron power supply and two ends of the cathode of the magnetron respectively. One end of the first capacitor is connected with the IF signal generator, and another end of the first capacitor is connected with the first cathode power line. A SWIPT method includes applying an IF signal which is equivalent to the ripple of anode voltage of the magnetron to the anode voltage of the magnetron; taking a resonance signal excited by the magnetron as a local oscillation signal; generating a new signal at an output end of the magnetron, and radiating the new signal through an antenna.
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公开(公告)号：US20180130629A1
公开(公告)日：2018-05-10
申请号：US15563932
申请日：2016-03-31
发明人： Robert RICHARDSON
摘要： The present invention relates to a modulator system adapted to generate high voltage pulses suitable for supply across a high voltage load having a thermionic cathode, such as a magnetron. The modulator system comprises a high voltage DC PSU connected to a switching mechanism adapted to generate high voltage pulses from the high voltage DC PSU for application to a thermionic cathode of a high voltage load. The modulator system further comprises an isolation transformer; a heater PSU adapted to be connected to a cathode heater through the isolation transformer and to provide an AC current thereto. The modulator system further comprises a controller to receive pulse instruction signals and trigger generation of corresponding high voltage pulses by the switching mechanism, to calculate the estimated arrival time of a next pulse instruction signal, based on the time between previous pulse instruction signals, and disable the heater PSU for a preset time, commencing before the estimated arrival time of the next pulse instruction signal, such that no current is supplied from the heater PSU while current is supplied from the high voltage PSU.
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公开(公告)号：US09754771B2
公开(公告)日：2017-09-05
申请号：US14338779
申请日：2014-07-23
发明人： Brian T. West , Roger M. Johnson , Michael S. Cox
CPC分类号： H01J37/3405 , H01J23/05 , H01J23/10 , H01J25/50 , H01J25/587 , H01J37/345 , H03B9/10 , H03C3/32 , H03C5/04
摘要： Embodiments of the present invention generally provide a magnetron that is encapsulated by a material that is tolerant of heat and water. In one embodiment, the entire magnetron is encapsulated. In another embodiment, the magnetron includes magnetic pole pieces, and the magnetic pole pieces are not covered by the encapsulating material.
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公开(公告)号：US07279842B2
公开(公告)日：2007-10-09
申请号：US10516349
申请日：2003-05-29
IPC分类号： H01J23/22 , H01J25/587
CPC分类号： H03B9/10
摘要： A magnetron of the type having a strap ring has protruding regions of the strap ring arranged so as to increase the capacitance between the strap ring and another strap ring or between the strap ring and anode vanes. Increasing the capacitance at selected portions of the strap ring allows control of the frequency response of the magnetron.
摘要翻译： 具有带环的类型的磁控管具有带环的突出区域，其布置成增加带环与另一条带环之间或带环和阳极叶片之间的电容。 在带环的选定部分增加电容允许控制磁控管的频率响应。
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公开(公告)号：US20070040510A1
公开(公告)日：2007-02-22
申请号：US10574978
申请日：2004-10-06
申请人： Hiroshi Matsumoto , Naoki Shinohara
发明人： Hiroshi Matsumoto , Naoki Shinohara
摘要： A microwave generator comprises a magnetron having an anode and a cathode, oscillating by the current supplied to the anode, and generating a microwave, electric-field controlling means for controlling one of the frequency/phase and the amplitude of the microwave by varying the electric field, and magnetic-field varying means for stabilizing the other by varying the magnetic field.
摘要翻译： 微波发生器包括具有阳极和阴极的磁控管，由提供给阳极的电流振荡，并产生微波电场控制装置，用于通过改变电流来控制微波的频率/相位和幅度之一 场和磁场变化装置，用于通过改变磁场来稳定另一个。
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公开(公告)号：US20020080839A1
公开(公告)日：2002-06-27
申请号：US10084513
申请日：2002-02-28
发明人： Yutaka Iwasaki , Masahiko Kubo
IPC分类号： H01S003/00 , H01S003/22 , H01S003/223
CPC分类号： H03B9/10 , H01S3/0975
摘要： Based on an oscillation ON/OFF signal and an output state instruction signal output to a high-voltage generating circuit (101) from a power supply control apparatus (301), heater voltage applied from a heater circuit (201) to a heater of a magnetron (2) is controlled depending on whether the magnetron (2) is stopped from oscillating or is continuously or intermittently operating. The heater voltage of the magnetron (2) measured during the intermittent operation is controlled to be higher than that measured during the continuous output and to be lower than that measured while the oscillation is stopped, thereby reducing the change in temperature of the heater and providing a lower limit temperature at which the magnetron (2) can oscillate stably. This configuration increases the service life of the magnetron (2) used for a microwave excitation laser.
摘要翻译： 基于来自电源控制装置（301）的输出到高压发生电路（101）的振荡ON / OFF信号和输出状态指示信号，从加热电路（201）向加热器 磁控管（2）根据磁控管（2）是否停止振荡或连续或间歇地操作来控制。 在间歇操作期间测量的磁控管（2）的加热器电压被控制为高于在连续输出期间测量的加热器电压，并且低于振荡停止时测量的加热器电压，从而减少加热器的温度变化并提供 磁控管（2）可以稳定地摆动的下限温度。 该配置增加了用于微波激发激光器的磁控管（2）的使用寿命。
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公开(公告)号：US5347236A
公开(公告)日：1994-09-13
申请号：US83956
申请日：1993-06-25
IPC分类号： H03B9/10
CPC分类号： H03B9/10
摘要： A modulator for providing modulating voltages across the anode and cathode of a negatively pulsed magnetron includes a switch which, when activated, couples the modulating voltage source to the cathode terminal, a current regulator which maintains a constant current flow through the anode and cathode when the modulating voltage is applied, and a voltage control circuit that reduces an excessive time rate of voltage change across the switch caused by arcing across the anode-cathode gap. A filament power supply is provided which supplies filament current while isolating the modulating voltage at the cathode from high voltage sensitive components in the filament power supply.
摘要翻译： 用于在负脉冲磁控管的阳极和阴极之间提供调制电压的调制器包括开关，当被激活时，开关将调制电压源耦合到阴极端子，电流调节器，当电流调节器保持恒定的电流流过阳极和阴极时 施加调制电压，以及电压控制电路，其通过跨过阳极 - 阴极间隙的电弧而减小跨越开关的电压变化的过多时间速率。 提供灯丝电源，其提供灯丝电流，同时将阴极处的调制电压与灯丝电源中的高电压敏感元件隔离。
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公开(公告)号：US4881162A
公开(公告)日：1989-11-14
申请号：US168447
申请日：1988-03-15
CPC分类号： H03B9/10
摘要： A frequency control system is provided for controlling the radio frequency of a mechanically tuned coaxial magnetron under a wide variety of environmental conditions by initially tuning the magnetron according to resident tuning data and in response to a received frequency command signal, directly measuring the frequency of the magnetron output, comparing the frequency command signal with the actual frequency of each of a series of sampled output pulses, modifying a dynamically adapting calibration function according to any differences found during the comparison, retuning the magnetron according to the modified calibration function, and repeating the process to maintain the magnetron output frequency in agreement with frequency command signals. The coefficients of the calibration function converge to an optimum set of values within a few pulses. Frequency offset can be effectively corrected with the measurement of one pulse; and other frequency control characteristics, such as slope and nonlinearity, can be corrected with the measurement of but a few more at different frequencies.
摘要翻译： 提供了一种频率控制系统，用于通过根据驻留的调谐数据初始调谐磁控管，并且响应于接收的频率指令信号，直接测量频率控制系统的频率，以便在各种环境条件下控制机械调谐的同轴磁控管的射频 磁控管输出，将频率指令信号与一系列采样输出脉冲中的每一个的实际频率进行比较，根据比较期间发现的任何差异修改动态适应校准功能，根据修改的校准功能重新调谐磁控管，并重复 保持磁控管输出频率与频率指令信号一致的过程。 校准函数的系数在几个脉冲内收敛到最佳值集合。 可以通过测量一个脉冲来有效地校正频率偏移; 和其他频率控制特性，例如斜率和非线性，可以用不同频率的测量来校正，但是可以更多地校正。
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公开(公告)号：US4076996A
公开(公告)日：1978-02-28
申请号：US721548
申请日：1976-09-08
申请人： Naoyoshi Maehara , Hiroshi Fujieda , Tatsuo Saka
发明人： Naoyoshi Maehara , Hiroshi Fujieda , Tatsuo Saka
摘要： The present disclosure relates to a power supplier for a magnetron for use in electric appliances, such as a microwave oven. The power supplier of the present disclosure has a solid state frequency converter which changes commercial A.C. power to A.C. power at a high frequency, which A.C. power is increased in voltage in a step-up transformer and then fed to the magnetron. The power supplier further has a control system which stabilizes the power to be applied to the magnetron with respect to a preselected reference level and a power supplier protecting circuit for protecting the power supplier from an unexpected low voltage occurring in the commercial power source.
摘要翻译： 本发明涉及用于诸如微波炉的电器的磁控管用电源。 本公开的电力供应商具有固态变频器，其将商用交流电功率改变为高频的交流电功率，其中升压变压器中的交流电功率增加，然后馈送到磁控管。 电源还具有控制系统，该控制系统相对于预选参考电平稳定施加到磁控管的功率，以及用于保护供电器免受商业电源中出现的意外的低电压的电源供应器保护电路。
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公开(公告)号：US3943317A
公开(公告)日：1976-03-09
申请号：US488683
申请日：1974-07-15
申请人： Schun-ichi Nagamoto
发明人： Schun-ichi Nagamoto
摘要： A microwave oven having a defrosting means including a bidirectional thyristor provided in a power source circuit and a control circuit for on-off controlling the thyristor, whereby microwave radiation can be intermittently irradiated on the foodstuff to obtain effective defrosting. Also, surge current at the time of start and end of the microwave oscillation is prevented.
摘要翻译： 一种具有除电装置的微波炉，包括设置在电源电路中的双向晶闸管和用于开关控制晶闸管的控制电路，由此微波辐射可以间歇地照射在食品上以获得有效的除霜。 此外，防止微波振荡开始和结束时的浪涌电流。
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