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公开(公告)号：US11830698B2
公开(公告)日：2023-11-28
申请号：US17772568
申请日：2020-04-17
发明人： Huaping Tang , Xiangyu Yin , Zhanfeng Qin , Jinsong Pan , Qinghui Zhang , Yangwei Zhan
CPC分类号： H01J35/065 , G05F1/565
摘要： A power supply circuit and a field emission electron source are provided. The power supply circuit includes: field effect transistors Si coupled in series via drains and sources in sequence, 1≤i≤n, i and n are natural numbers, n≥2, and a source of S1 is coupled to a negative electrode of a voltage source, and a drain of Sn is used as an output terminal of the power supply circuit to couple to a load; a first group of diodes D1i coupled in series; a first group of resistors R1j, 2≤j≤n, and i and j are natural numbers; and a voltage control module configured to adjust an output voltage of the voltage source to cause a current passing through the load to be constant; the field effect transistors Si, 1≤i≤n, operate in a resistive region.
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公开(公告)号：US20230036712A1
公开(公告)日：2023-02-02
申请号：US17772579
申请日：2020-04-17
发明人： Huaping TANG , Jinsong PAN , Zhanfeng QIN , Xiangyu YIN , Yangwei ZHAN
摘要： A power supply circuit and a field emission electron source are provided. The power supply circuit includes: field effect transistors Si coupled in series via drains and sources in sequence, wherein 1≤i≤n, n≥2, and wherein a source of S1 is coupled to a negative electrode of a voltage source, and a drain of Sn is used as an output terminal of the power supply circuit to couple to a load; a first group of diodes D1i coupled in series; a first group of resistors R1j, 2≤j≤n; and a current feedback module configured to adjust an internal resistance of the field effect transistors Si, coupled in series in sequence, so as to cause a current passing through the load to be constant; wherein the field effect transistors Si, 1≤i≤n, operate in a constant current region.
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3.发明申请公开(公告)号：US20200253033A1
公开(公告)日：2020-08-06
申请号：US16727639
申请日：2019-12-26
发明人： Yuanjing LI , Yaohong LIU , Huaping TANG , Jinsheng LIU , Xiying LIU , Zhanfeng QIN , Wei JIA , Jinsong PAN
摘要： Embodiments of the present disclosure disclose a multi-output high-voltage power supply including a channel selection circuit (103) including a plurality of switches; and a high-voltage power supply module (101) connected to the channel selection circuit (103), wherein the high-voltage power supply module (101) includes a fine adjusting power supply component (110) and a plurality of coarse adjusting power supply components (120-1 to 120-N) connected in series, wherein one high-voltage output terminal of the high-voltage power supply module (101) is connected to a common terminal of the channel selection circuit (103), and the other high-voltage output terminal of the high-voltage power supply module (101) is grounded through a current sampling resistor.
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公开(公告)号：US11792908B2
公开(公告)日：2023-10-17
申请号：US17755520
申请日：2020-04-13
发明人： Huaping Tang , Jinsong Pan , Yangwei Zhan , Zhanfeng Qin , Qinghui Zhang , Xiangyu Yin
CPC分类号： H05G1/70 , H05G1/265 , H05G1/56 , H01J35/025
摘要： A time-division multiplexing control device applied to a distributed X-ray source includes: a first switch module with a number of first switches that receive a high-voltage signal and a first control signal, selectively turning on one of the plurality of first switches according to the first control signal and sending the high-voltage signal through the first switch turned on; and a cathode control module including a plurality of cathode control stages in one-to-one correspondence with the plurality of first switches, used for receiving the high-voltage signal from the first switch module and sending working state data through a cathode control stage corresponding to the first switch turned on in the plurality of cathode control stages, where each cathode control stage includes a cathode control unit and a cathode.
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公开(公告)号：US20220384135A1
公开(公告)日：2022-12-01
申请号：US17755520
申请日：2020-04-13
发明人： Huaping TANG , Jinsong PAN , Yangwei ZHAN , Zhanfeng QIN , Qinghui ZHANG , Xiangyu YIN
IPC分类号： H01J35/02
摘要： A time-division multiplexing control device applied to a distributed X-ray source includes: a first switch module with a number of first switches that receive a high-voltage signal and a first control signal, selectively turning on one of the plurality of first switches according to the first control signal and sending the high-voltage signal through the first switch turned on; and a cathode control module including a plurality of cathode control stages in one-to-one correspondence with the plurality of first switches, used for receiving the high-voltage signal from the first switch module and sending working state data through a cathode control stage corresponding to the first switch turned on in the plurality of cathode control stages, where each cathode control stage includes a cathode control unit and a cathode.
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公开(公告)号：US20220375710A1
公开(公告)日：2022-11-24
申请号：US17772568
申请日：2020-04-17
发明人： Huaping TANG , Xiangyu YIN , Zhanfeng QIN , Jinsong PAN , Qinghui ZHANG , Yangwei ZHAN
摘要： A power supply circuit and a field emission electron source are provided. The power supply circuit includes: field effect transistors Si coupled in series via drains and sources in sequence, 1≤i≤n, i and n are natural numbers, n≥2, and a source of S1 is coupled to a negative electrode of a voltage source, and a drain of Sn is used as an output terminal of the power supply circuit to couple to a load; a first group of diodes D1i coupled in series; a first group of resistors R1j, 2≤j≤n, and i and j are natural numbers; and a voltage control module configured to adjust an output voltage of the voltage source to cause a current passing through the load to be constant; the field effect transistors Si, 1≤i≤n, operate in a resistive region.
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公开(公告)号：US20230255576A1
公开(公告)日：2023-08-17
申请号：US18011388
申请日：2021-07-02
发明人： Zhiqiang CHEN , Huaping TANG , Xin JIN
摘要： The present application relates to a deflection electrode assembly, an X-ray source, and an X-ray imaging system. The deflection electrode assembly includes: a first electrode plate, including a first connection portion and a plurality of first tooth portions, wherein the first electrode plate is formed as a comb shape; and a second electrode plate, including a second connection portion and a plurality of second tooth portions, wherein the second electrode plate is formed as a comb shape. The first electrode plate and the second electrode plate are not in contact with each other, and the plurality of first tooth portions and the plurality of second tooth portions are arranged at least partially in a staggered manner to form a plurality of electron beam passageways; each electron beam passageway is located between adjacent first and second tooth portions.
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公开(公告)号：US11026319B2
公开(公告)日：2021-06-01
申请号：US16727639
申请日：2019-12-26
发明人： Yuanjing Li , Yaohong Liu , Huaping Tang , Jinsheng Liu , Xiying Liu , Zhanfeng Qin , Wei Jia , Jinsong Pan
摘要： Embodiments of the present disclosure disclose a multi-output high-voltage power supply including a channel selection circuit (103) including a plurality of switches; and a high-voltage power supply module (101) connected to the channel selection circuit (103), wherein the high-voltage power supply module (101) includes a fine adjusting power supply component (110) and a plurality of coarse adjusting power supply components (120-1 to 120-N) connected in series, wherein one high-voltage output terminal of the high-voltage power supply module (101) is connected to a common terminal of the channel selection circuit (103), and the other high-voltage output terminal of the high-voltage power supply module (101) is grounded through a current sampling resistor.
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