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    • 1. 发明授权
    • Piezoelectric vibrator driving circuit
    • 压电振动器驱动电路
    • US08796903B2
    • 2014-08-05
    • US13303699
    • 2011-11-23
    • Misao FuruyaHirohiko YoshiokaDaisuke TakahataFumiaki HondaKazuyuki Ueda
    • Misao FuruyaHirohiko YoshiokaDaisuke TakahataFumiaki HondaKazuyuki Ueda
    • H02N2/06
    • H02P31/00H01L41/042H02P25/032
    • One embodiment provides a piezoelectric vibrator driving circuit for driving a piezoelectric vibrator, the piezoelectric vibrator having an equivalent circuit in which an LC series resonance circuit, an equivalent resistor Rx connected in series thereto and a damping capacitor Co connected in parallel to them are provided, the driving circuit is configured: to detect a driving current Iz flowing through the entire piezoelectric vibrator; to detect a damping current Iy flowing through the damping capacitor Co; to calculate a series resonance current Ix flowing through the LC series resonance circuit by subtracting the detected damping current Iy from the detected driving current Iz; and to perform a phase adjustment so that a phase difference between the calculated series resonance current Ix and a driving voltage Ve to be applied to the piezoelectric vibrator becomes approximately 0.
    • 一个实施例提供了一种用于驱动压电振动器的压电振动器驱动电路,该压电振子具有串联连接的LC串联谐振电路,等效电阻器Rx和与它们并联连接的阻尼电容器Co的等效电路, 驱动电路被配置为检测流过整个压电振动器的驱动电流Iz; 以检测流过阻尼电容器Co的阻尼电流Iy; 通过从检测到的驱动电流Iz减去检测到的阻尼电流Iy来计算流过LC串联谐振电路的串联谐振电流Ix; 并且进行相位调整,使得计算出的串联谐振电流Ix与施加到压电振动器的驱动电压Ve之间的相位差变为约0。
    • 2. 发明申请
    • PIEZOELECTRIC VIBRATOR DRIVING CIRCUIT
    • 压电振动器驱动电路
    • US20120133307A1
    • 2012-05-31
    • US13303699
    • 2011-11-23
    • Misao FuruyaHirohiko YoshiokaDaisuke TakahataFumiaki HondaKazuyuki Ueda
    • Misao FuruyaHirohiko YoshiokaDaisuke TakahataFumiaki HondaKazuyuki Ueda
    • H02P31/00
    • H02P31/00H01L41/042H02P25/032
    • One embodiment provides a piezoelectric vibrator driving circuit for driving a piezoelectric vibrator, the piezoelectric vibrator having an equivalent circuit in which an LC series resonance circuit, an equivalent resistor Rx connected in series thereto and a damping capacitor Co connected in parallel to them are provided, the driving circuit is configured: to detect a driving current Iz flowing through the entire piezoelectric vibrator; to detect a damping current Iy flowing through the damping capacitor Co; to calculate a series resonance current Ix flowing through the LC series resonance circuit by subtracting the detected damping current Iy from the detected driving current Iz; and to perform a phase adjustment so that a phase difference between the calculated series resonance current Ix and a driving voltage Ve to be applied to the piezoelectric vibrator becomes approximately 0.
    • 一个实施例提供了一种用于驱动压电振动器的压电振动器驱动电路,该压电振子具有串联连接的LC串联谐振电路,等效电阻器Rx和与它们并联连接的阻尼电容器Co的等效电路, 驱动电路被配置为检测流过整个压电振动器的驱动电流Iz; 以检测流过阻尼电容器Co的阻尼电流Iy; 通过从检测到的驱动电流Iz减去检测到的阻尼电流Iy来计算流过LC串联谐振电路的串联谐振电流Ix; 并且进行相位调整,使得计算出的串联谐振电流Ix与施加到压电振动器的驱动电压Ve之间的相位差变为约0。
    • 9. 发明申请
    • RADIATION GENERATING TUBE
    • 辐射发生管
    • US20120307978A1
    • 2012-12-06
    • US13476209
    • 2012-05-21
    • Koji YamazakiKazuyuki Ueda
    • Koji YamazakiKazuyuki Ueda
    • H01J35/16
    • H01J35/16H01J35/06H01J35/18H01J2235/087H01J2235/168H01J2235/186
    • The present invention provides a radiation generating tube which suppresses electrical charging of an inner wall of an insulating tube attributable to electron emission from a junction between the insulating tube and a cathode and which has improved voltage withstand capability. The radiation generating tube comprising: a hollow insulating tube; a cathode and an anode respectively bonded to both ends of the insulating tube; and an electron emission source provided on the cathode, the radiation generating tube having a vacuum interior space. The electron emission source includes an electron emitting portion in the interior space, and the insulating tube includes a protrusion that protrudes into the interior space.
    • 本发明提供了一种辐射发生管,其抑制由绝缘管和阴极之间的接合处的电子发射引起的绝缘管的内壁的充电,并且具有改善的耐电压能力。 辐射发生管包括:中空绝缘管; 分别结合到绝缘管的两端的阴极和阳极; 和设置在阴极上的电子发射源,该辐射发生管具有真空内部空间。 电子发射源包括在内部空间中的电子发射部分,并且绝缘管包括突出到内部空间中的突起。