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81. 发明申请

US20150195896A1 DC POWER SUPPLY DEVICE, AND CONTROL METHOD FOR DC POWER SUPPLY DEVICE 有权
标题翻译：直流电源装置及直流电源装置的控制方法
公开(公告)号：US20150195896A1
公开(公告)日：2015-07-09
申请号：US14414816
申请日：2012-09-07
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Itsuo Yuzurihara , Toshiyuki Adachi , Shinichi Kodama
IPC分类号： H05H1/46
CPC分类号： H05H1/46 , H01J37/32027 , H01J37/32045 , H02M3/33507 , H02M3/337 , H02M2001/007 , H05H7/001 , H05H2001/4682
摘要： Intermittent short-circuit control is performed in the ignition mode, thereby allowing short-circuit current to flow in the current source step-down type chopper. Energy of the short-circuit current is temporarily accumulated in the inductor provided in the current source step-down type chopper. The accumulated energy boosts the output voltage from the direct current power supply device during the period until the next short circuiting, via the current, the multiphase inverter, and the rectifier. The voltage boosting operation where accumulation of the current energy by short circuiting and boosting of the output voltage by conduction are repeated, controls an increase of the output voltage which is applied to the plasma generator.
摘要翻译：在点火模式下执行间歇性短路控制，从而允许短路电流流过电流源降压型斩波器。短路电流的能量临时累积在设置在电流源降压型斩波器中的电感器中。累积的能量通过电流，多相逆变器和整流器在直到下一次短路的时段内提高直流电源装置的输出电压。通过重复通过短路使输出电压的短路和升压来积聚电流能量的升压操作，控制施加到等离子体发生器的输出电压的增加。

82. 发明申请

US20150084509A1 HIGH-FREQUENCY POWER SUPPLY DEVICE AND REFLECTED WAVE POWER CONTROL METHOD 有权
标题翻译：高频电源装置和反射波功率控制方法
公开(公告)号：US20150084509A1
公开(公告)日：2015-03-26
申请号：US14394341
申请日：2013-06-03
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Itsuo Yuzurihara , Satoshi Aikawa , Hiroshi Kunitama
IPC分类号： H01J37/32 , H02M1/08 , H02M7/539
CPC分类号： H01J37/32174 , H01J37/32082 , H01J37/32146 , H01J37/32183 , H01J37/32944 , H01J37/3299 , H02M1/08 , H02M7/539 , H05H1/46 , H05H2001/4682
摘要： In an RF power supply for supplying RF power to a plasma load, reflected wave power control is performed in which the reflected wave power of an RF generator is detected and the RF generator is controlled. For a short-time variation in reflected wave power, control is performed based on a peak value variation in the detection value of reflected wave power. For a long-time variation in reflected wave power, control is performed based on a variation in a smoothed value obtained by smoothing detection values of reflected wave power. A reflected wave power control loop system includes a reflected wave power peak value dropping loop system and an arc blocking system that perform control based on a peak variation in reflected wave power and a reflected wave power amount dropping loop system that performs control based on a smoothed power amount of reflected wave power.
摘要翻译：在用于向等离子体负载提供RF功率的RF电源中，执行检测RF发生器的反射波功率并且控制RF发生器的反射波功率控制。对于反射波功率的短时间变化，基于反射波功率的检测值的峰值变化进行控制。对于反射波功率的长时间变化，基于通过平滑反射波功率的检测值获得的平滑值的变化来执行控制。反射波功率控制回路系统包括反射波功率峰值丢失环路系统和基于反射波功率的峰值变化进行控制的电弧阻挡系统以及基于平滑处理的反射波功率下降环路系统进行控制反射波功率的功率量。

83. 发明公开

US20240146174A1 POWER CONVERSION DEVICE 审中-公开
公开(公告)号：US20240146174A1
公开(公告)日：2024-05-02
申请号：US18280894
申请日：2022-02-28
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Koichi Miyazaki , Hiroshi Kunitama
IPC分类号： H02M1/00 , H02M7/537 , H03F3/217
CPC分类号： H02M1/0058 , H02M7/537 , H03F3/217
摘要： A power conversion device according to the present invention comprises a plurality of class-D amplifiers disposed in parallel. An ON/OFF operation of a switching element of a lead leg and a delay leg of each class-D amplifier is carried out by a phase shift control, in which an auxiliary current is supplied to the class-D amplifier on the basis of a voltage difference between output terminals of an upper and lower class-D amplifiers. The auxiliary current supplements the electric current flowing between the drain and the source of the switching element. Generation of a displacement voltage dv/dt on the switching element, and a displacement current di/dt in modulation waves generated by the displacement voltage are prevented, thus preventing erroneous turn-on of the switching element in the OFF state of the other side of the leg.

84. 发明公开

US20240048041A1 WIDEBAND RF POWER SUPPLY AND CONTROL METHOD 审中-公开
公开(公告)号：US20240048041A1
公开(公告)日：2024-02-08
申请号：US18276940
申请日：2021-12-17
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Itsuo Yuzurihara , Tomohiro Yoneyama , Shohei Kobayashi , Yu Hosoyamada
IPC分类号： H02M1/00 , H02M7/537
CPC分类号： H02M1/0054 , H02M7/537
摘要： A carrier wave generation unit comprising a wideband RF power supply divides a whole modulation wave variable frequency range into a plurality of modulation wave frequency sections associated with the number of PWM pulses N based on upper and lower limit frequencies of a carrier wave. In each modulation wave frequency section, an integer number of PWM pulses N associated to each modulation wave frequency section and the modulation wave frequency fs are used to vary a carrier wave frequency fc based on the relationship of fc=N·fs, thereby synchronizing the frequency between a carrier wave C and a modulation wave S to satisfy periodicity.

85. 发明授权

US11852665B2 Pulsed high frequency monitor 有权
公开(公告)号：US11852665B2
公开(公告)日：2023-12-26
申请号：US17629154
申请日：2020-08-05
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Hiroyuki Kojima , Ryota Suzuki
IPC分类号： G01R23/02 , G01R21/00
CPC分类号： G01R23/02 , G01R21/00
摘要： A pulsed high frequency monitor of the present invention monitors the power level of a pulsed high frequency on the basis of a transition pattern in which the power level changes in time series instead of monitoring the power level by comparing the power level of the pulsed high frequency with a threshold value. The pulsed high frequency monitor comprises: a DC circuit that converts the pulsed high frequency into DC and outputs the power level; a power level change detection circuit that detects a level change of the power level; and a transition pattern determination circuit that determines a time-series transition pattern of the power level on the basis of the level change detected by the power level change detection circuit.

86. 发明公开

US20230388834A1 FREQUENCY DETERMINATION METHOD AND FREQUENCY DETERMINATION APPARATUS 审中-公开
公开(公告)号：US20230388834A1
公开(公告)日：2023-11-30
申请号：US18446785
申请日：2023-08-09
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Tossaporn SRISOOKSAI , Nobuo KATSUMA , Shuji NAMBU
IPC分类号： H04W24/08 , H04B17/336 , H04B17/391 , B61L27/70
CPC分类号： H04W24/08 , H04B17/336 , H04B17/3913 , B61L27/70
摘要： A frequency determination apparatus (30) acquires a past dataset in which given frequency-specific time-series data indicating frequency-specific communication status of a wireless base station (10) based on a signal-to-noise ratio (SNR) over a predetermined monitoring period in time series is associated with frequency-specific evaluation value data indicating an evaluation value evaluating the communication status during a subsequent period following the monitoring period by frequency. The frequency determination apparatus (30) generates an evaluation value inference machine learning model. The frequency determination apparatus (30) inputs the frequency-specific time-series data with a given preceding period as the monitoring period to the evaluation value inference machine learning model to acquire an output of the frequency-specific evaluation value data with a future period following the relevant preceding period as the subsequent period, and determines a frequency to be used for the wireless communication based on the acquired frequency-specific evaluation value data.

87. 发明授权

US11728734B2 DC/DC converter for switching a voltage level of DC voltage, and a control method for the DC/DC converter 有权
公开(公告)号：US11728734B2
公开(公告)日：2023-08-15
申请号：US17048787
申请日：2018-04-24
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Itsuo Yuzurihara , Yu Hosoyamada
IPC分类号： H02M3/158 , H02M1/08
CPC分类号： H02M3/1584 , H02M1/08 , H02M3/1586
摘要： The present invention suppresses influence of control due to the delay time in voltage switching between a plurality of different voltages. A DC/DC converter comprises: a main circuit including a switching circuit; a control unit that performs discrete control by discrete control toward a command value; and a switching signal generation unit that generates a switching signal that drives the switching circuit. The control unit calculates the pulse width ΔT(k) of the switching signal having the delay time Td as a parameter as an operation amount of discrete control performed every control period Ts. The switching signal generation unit generates a switching signal based on the pulse width ΔT(k) obtained by the calculation in the control unit. The main circuit switches the voltage level by driving the switching circuit based on the switching signal of the switching signal generation unit.

88. 发明授权

US11677385B2 DC pulse power supply device and duty control method for DC pulse power supply device 有权
公开(公告)号：US11677385B2
公开(公告)日：2023-06-13
申请号：US17602049
申请日：2019-11-08
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Itsuo Yuzurihara , Toshiyuki Adachi , Tomohiro Yoneyama , Koichi Miyazaki
IPC分类号： H03K3/017
CPC分类号： H03K3/017
摘要： In a DC pulse power supply device according to the present invention, at the time of starting pulsing operation, the duty of the pulsing operation of a chopper circuit is controlled, a switching element is set to an ON state, and the pulse width at which the DC reactor is in an energized state is made variable over the period until the capacitor voltage is charged to a sufficient voltage to reset the magnetic saturation of the DC reactor. Gradually increasing the pulse width suppresses the degree of increase in the DC reactor current, and suppresses the DC reactor current below the magnetic saturazion level. As a result, the magnetic saturation of the DC reactor is suppressed at the time of starting pulsing operation.

89. 发明申请

US20230134559A1 HIGH-FREQUENCY POWER SUPPLY DEVICE AND OUTPUT CONTROL METHOD THEREFOR 有权
公开(公告)号：US20230134559A1
公开(公告)日：2023-05-04
申请号：US17908797
申请日：2021-03-04
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Takeshi Fujiwara , Hiroyuki Kojima , Satoshi Kawai
IPC分类号： H01J37/32
摘要： Provided are a high-frequency power supply device and an output control method therefor which are capable of constantly keeping the phase of the outputted high-frequency pulse uniform even in a structure in which the synchronizing pulse and the clock pulse are generated separately. A high-frequency power supply device and an output control method therefor for outputting a high-frequency pulse to a target device on the basis of a synchronizing pulse and a clock pulse, wherein: the period interval of one period of the synchronizing pulse is detected; the phase difference between the synchronizing pulse and the clock pulse during the previous one period is determined; the number of pulses and oscillation frequency of oscillation in the subsequent period is calculated on the basis of the period interval and the phase difference; a clock pulse is generated on the basis of the oscillation frequency signal; and a number of pulses and oscillation frequency for the subsequent period which will cancel the phase difference in the previous one period are determined in a manner such that the phase remains constant after the period interval of the subsequent period elapses when forming a high-frequency pulse on the basis of the period reference signal, the level setting signal, the pulse number signal and the clock pulse.

90. 发明申请

US20230073768A1 METHOD FOR CONTROLLING HIGH-FREQUENCY POWER SUPPLY DEVICE, AND HIGH-FREQUENCY POWER SUPPLY DEVICE 有权
公开(公告)号：US20230073768A1
公开(公告)日：2023-03-09
申请号：US17800169
申请日：2021-02-12
申请人： KYOSAN ELECTRIC MFG. CO., LTD.
发明人： Atsushi Takayanagi , Toshinori Takeuchi , Hirokazu Takada , Soichi Yokoyama , Hiro Nakayama
IPC分类号： H03F1/56 , H03F3/19
摘要： The present invention controls, within a frequency range, an output command value not to exceed the upper limit of an output command permitted by a high-frequency amplifier. A method for controlling a high-frequency power supply device and the high-frequency power supply device involve performing frequency control within a frequency range of variable frequencies, limiting the upper limit of an output command value for controlling an output of a high-frequency amplifier within the frequency range of variable frequencies on the basis of an output limit value, and thereby preventing damaging of the high-frequency amplifier caused by an excessive command.

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