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公开(公告)号：US12128772B2
公开(公告)日：2024-10-29
申请号：US17288825
申请日：2019-10-30
申请人： ROHM CO., LTD.
发明人： Mineo Miura , Masashi Hayashiguchi
摘要： A semiconductor unit is arranged between a motor and an inverter circuit that controls the motor. The semiconductor unit includes a transistor and a controller. The transistor is arranged between the inverter circuit and a positive electrode of a battery that supplies power to the inverter circuit, and controls supplying of power from the battery to the inverter circuit. The controller is connected to a control terminal of the transistor, and controls a control voltage that is a voltage applied to the control terminal. When power starts to be supplied from the battery to the inverter circuit, the controller controls the control voltage to intermittently operate the transistor and also decreases the control voltage, which is applied to the control terminal of the transistor, to be lower than the control voltage at which the transistor is fully activated.
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公开(公告)号：US12092768B2
公开(公告)日：2024-09-17
申请号：US18487541
申请日：2023-10-16
发明人： Hao Huang , Mikhail Dolganov , Lijun Zhu
IPC分类号： G01S7/4861 , G01S7/486 , G01S7/4865 , G02F1/01 , H01S5/042 , H03K3/53
CPC分类号： G01S7/4861 , G01S7/4865 , G01S7/4868 , G02F1/0121 , H01S5/042 , H01S5/0428 , H03K3/53 , G02F2203/26
摘要： In some implementations, an electrical drive circuit may generate a rectangular optical pulse using cathode pre-charge and cathode-pull compensation. The electrical drive circuit may include an anode and a cathode to connect an optical load, a switch, a first source connected between the anode and a ground, a rectifier connected between the cathode and the switch, a capacitor connected in parallel with the rectifier, a second source connected to the ground, and an inductor connected between the switch and the second source. In some implementations, when the switch is closed and the optical load is connected, a first current is provided to the optical load through the first source, the rectifier, and the switch, and a second current is provided to the optical load through the first source, the capacitor, and the switch, where a rise time of the first current complements a fall time of the second current.
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公开(公告)号：US11789129B2
公开(公告)日：2023-10-17
申请号：US16948680
申请日：2020-09-29
发明人： Hao Huang , Mikhail Dolganov , Lijun Zhu
IPC分类号： G01S7/4861 , G02F1/01 , H01S5/042 , H03K3/53 , G01S7/4865 , G01S7/486
CPC分类号： G01S7/4861 , G01S7/4865 , G01S7/4868 , G02F1/0121 , H01S5/042 , H01S5/0428 , H03K3/53 , G02F2203/26
摘要： In some implementations, an electrical drive circuit may generate a rectangular optical pulse using cathode pre-charge and cathode-pull compensation. The electrical drive circuit may include an anode and a cathode to connect an optical load, a switch, a first source connected between the anode and a ground, a rectifier connected between the cathode and the switch, a capacitor connected in parallel with the rectifier, a second source connected to the ground, and an inductor connected between the switch and the second source. In some implementations, when the switch is closed and the optical load is connected, a first current is provided to the optical load through the first source, the rectifier, and the switch, and a second current is provided to the optical load through the first source, the capacitor, and the switch, where a rise time of the first current complements a fall time of the second current.
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公开(公告)号：US20220224317A1
公开(公告)日：2022-07-14
申请号：US17707902
申请日：2022-03-29
摘要： Some embodiments of the invention include a pre-pulse switching system. The pre-pulsing switching system may include: a power source configured to provide a voltage greater than 100 V; a pre-pulse switch coupled with the power source and configured to provide a pre-pulse having a pulse width of Tpp; and a main switch coupled with the power source and configured to provide a main pulse such that an output pulse comprises a single pulse with negligible ringing. The pre-pulse may be provided to a load by closing the pre-pulse switch while the main switch is open. The main pulse may be provided to the load by closing the main switch after a delay Tdelay after the pre-pulse switch has been opened.
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公开(公告)号：US20210211094A1
公开(公告)日：2021-07-08
申请号：US17192052
申请日：2021-03-04
申请人： GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS , SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
发明人： Man Soo CHOI , Namyoung AHN , Kiwan JEONG
摘要： The present invention provides a method for driving an electronic device so that the electronic device can have higher stability and longer service life. More particularly, proposed is a method for driving an electronic device so that power supply sources including perovskite solar cells, organic solar cells, or the like, or other electronic devices can have higher stability and longer service life.
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公开(公告)号：US20210066042A1
公开(公告)日：2021-03-04
申请号：US17098207
申请日：2020-11-13
摘要： Some embodiments include a high voltage, high frequency switching circuit. The switching circuit may include a high voltage switching power supply that produces pulses having a voltage greater than 1 kV and with frequencies greater than 10 kHz and an output. The switching circuit may also include a resistive output stage electrically coupled in parallel with the output and between the output stage and the high voltage switching power supply, the resistive output stage comprising at least one resistor that discharges a load coupled with the output. In some embodiments, the resistive output stage may be configured to discharge over about 1 kilowatt of average power during each pulse cycle. In some embodiments, the output can produce a high voltage pulse having a voltage greater than 1 kV and with frequencies greater than 10 kHz with a pulse fall time less than about 400 ns.
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公开(公告)号：US10692682B1
公开(公告)日：2020-06-23
申请号：US16704026
申请日：2019-12-05
摘要： A high-voltage generator provides a high-voltage pulse including a plurality of energy storage cells, each including two input and two output terminals and a capacitor. A controllable switching element is connected to the input terminals and plus terminals and minus terminals are electrically connected to one another via a respective diode. The high-voltage generator further includes a series connection comprising the energy storage cells, a pulse transformer, and a charging terminal for charging the capacitors. In an embodiment, the high-voltage generator is developed so that a greater pulse rate can be achieved. In an embodiment, at least a respective one of the energy storage cells includes an electrical resistance, connected in series with the diode connecting the plus terminals of the respective energy storage cell.
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公开(公告)号：US10339986B1
公开(公告)日：2019-07-02
申请号：US16162394
申请日：2018-10-17
发明人： Jingjie Wu , Chih-Wen Yang , Wen-Pin Hsieh
摘要： A data latch circuit and a pulse signal generator thereof are provided. The pulse signal generator includes a first buffer, a second buffer, a pull-up switch and an output buffer. The first buffer generates a first buffering signal according to an input signal and a feedback signal. The second buffer generates a second buffering signal according to the input signal and the first buffering signal. The pull-up switch pulls up the second buffering signal according to the first buffering signal. The output buffer generates at least one output pulse signal according to the second buffering signal. The output buffer further outputs the at least one output pulse signal to the first buffer to be the feedback signal.
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公开(公告)号：US10197372B2
公开(公告)日：2019-02-05
申请号：US15315832
申请日：2015-06-05
申请人： ENIG ASSOCIATES INC.
摘要： An explosive device composed of: a flux compression generator operative to produce a high intensity electric current when activated; and an electrical payload connected to the generator and constructed to receive the high intensity electric current and cause energy in the current to generate a plate or shaped projectile in the payload and to launch the projectiles into an explosive or insensitive reactive material target for the purpose of initiating the reactive material at single or multiple points.
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公开(公告)号：US20180358973A1
公开(公告)日：2018-12-13
申请号：US15950968
申请日：2018-04-11
发明人： Yuichi MARUYAMA , Noriaki MATSUNO
CPC分类号： H03L7/099 , H03B5/04 , H03B5/366 , H03B2200/005 , H03B2200/0068 , H03B2201/0266 , H03K3/53 , H03L1/026 , H03L1/027 , H03L1/028
摘要： Increases of circuit scale and power consumption are suppressed while frequency deviation is kept within a predetermined allowable range. A semiconductor device according to an embodiment includes a variable load capacity circuit including a plurality of load capacity elements coupled in parallel to one end of a crystal resonator and a plurality of switches that are respectively serially coupled to the load capacity elements, and a switch control unit that controls ON/OFF of the switches on the basis of information to be an index of frequency deviation due to temperature change of a frequency signal obtained by oscillating the crystal resonator. The switch control unit changes the number of switches that will be turned ON among the plurality of switches so that an absolute value of the frequency deviation becomes small when the information is not included in a predetermined allowable range.
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