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    • 61. 发明授权
    • Gate drive circuit of voltage drive switching element
    • 电压驱动开关元件的栅极驱动电路
    • US06271709B1
    • 2001-08-07
    • US09453204
    • 1999-12-03
    • Shin KimuraMasahiro NagasuSatoru InaridaHideki MiyazakiKatsunori Suzuki
    • Shin KimuraMasahiro NagasuSatoru InaridaHideki MiyazakiKatsunori Suzuki
    • H03K1716
    • H03K17/168H03K17/163
    • A gate drive circuit of a voltage drive switching element, which is characterized by control of di/dt and dv/dt when an IGBT is switched by controlling increases in the switching time and loss of the IGBT, includes a drive means for amplifying a signal for controlling the switching operation of a voltage drive switching device including the IGBT, a means for detecting the gate voltage of the IGBT, a voltage decrease (increase) means for slowly decreasing (increasing) the output voltage when the drive means is turned on (off) in the course of time, and a voltage increase (decrease) means for slowly increasing (decreasing) the output voltage. By switching from the voltage decrease (increase) means to the voltage increase (decrease) means according to the detected value of the gate voltage of the IGBT, di/dt and dv/dt are controlled when the IGBT is turned on (off).
    • 电压驱动开关元件的栅极驱动电路,其特征在于,通过控制IGBT的切换时间和损耗的切换来切换IGBT时的di / dt和dv / dt的控制,包括用于放大信号的驱动装置 用于控制包括IGBT的电压驱动开关装置的切换操作,用于检测IGBT的栅极电压的装置,用于当驱动装置接通时缓慢降低(增加)输出电压的电压降低(增加)装置( 关闭),并且电压增加(减小)意味着缓慢增加(降低)输出电压。 通过从IGBT的栅极电压的检测值切换到电压降低(增加)装置到电压增加(减小)的手段,当IGBT导通(关闭)时,di / dt和dv / dt被控制。
    • 66. 发明授权
    • Inverter
    • 逆变器
    • US5216587A
    • 1993-06-01
    • US862363
    • 1992-04-02
    • Hideki MiyazakiKouzou WatanabeKenichi OndaTomoyuki TanakaMasayuki Wada
    • Hideki MiyazakiKouzou WatanabeKenichi OndaTomoyuki TanakaMasayuki Wada
    • H02M7/48
    • H02M1/32H02M7/538
    • An inverter includes first, second, and third dc voltage sources, first and second switching elements which are connected in series to the first dc voltage source, a signal generator section for producing first and second control signals on the basis of the output voltage from the third dc voltage source, first and second signal level converter sections for converting voltage levels of the first and second control signals based on the output voltage from the second dc voltage source and thereby respectively generating first and second output signals, and first and second driver sections responsive to the first and second output signals for supplying the first and second switching element with first and second driving signals on the basis of the output voltage from the second dc voltage source and thereby respectively turning the first and second switching elements on or off. At least either one of the first and second signal level converter sections includes a turn-off section responsive when at least either one of the output voltages respectively from the second and third dc voltage sources is lower than a predetermined voltage level for turning the first or second switching element off irrespective of the first and second control signals.
    • 逆变器包括第一,第二和第三直流电压源,与第一直流电压源串联连接的第一和第二开关元件,信号发生器部分,用于根据来自第一直流电压源的输出电压产生第一和第二控制信号 第三直流电压源,第一和第二信号电平转换器部分,用于基于来自第二直流电压源的输出电压转换第一和第二控制信号的电压电平,从而分别产生第一和第二输出信号,以及第一和第二驱动器部分 响应于第一和第二输出信号,用于基于来自第二直流电压源的输出电压向第一和第二开关元件提供第一和第二驱动信号,从而分别使第一和第二开关元件接通或断开。 第一和第二信号电平转换器部分中的至少一个包括关断部分,当分别来自第二和第三直流电压源的输出电压中的至少一个低于用于转动第一或第二直流电压源的预定电压电平时, 第二开关元件关闭,而与第一和第二控制信号无关。
    • 69. 发明申请
    • ELECTROMAGNETIC WAVE RESONATOR AND ITS FABRICATION PROCESS AS WELL AS ELECTROMAGNETIC WAVE GENERATOR
    • 电磁波谐振器及其制造工艺,如电磁波发生器
    • US20120326702A1
    • 2012-12-27
    • US13581579
    • 2011-03-02
    • Hideki MiyazakiHiroshi MiyazakiHiroki Ebe
    • Hideki MiyazakiHiroshi MiyazakiHiroki Ebe
    • H03H9/46G01R19/00H03H3/007H01J7/44
    • G02F1/21G02F2202/30G02F2203/10
    • The main object of the invention is to provide an electromagnetic wave resonator making use of surface waves: an electromagnetic wave resonator structure capable of being achieved with existing technologies yet without much difficulty and applying voltage to a positive dielectric area, thereby overcoming a variety of problems arising from the fact that only thermal excitation is available.The contact structure of negative dielectric/positive dielectric/negative dielectric necessary for this type of electromagnetic wave resonator is provided on the surface of the negative dielectric material 1 just as the coaxial structure of the positive dielectric thin film 3 extending in the Y-axis direction and the negative dielectric material 2 received therein is cut in the axial direction. This makes sure both negative dielectric materials 1 and 2 with the positive dielectric thin film 3 sandwiched between them are electrically insulated so that voltage can be applied to the positive dielectric thin film 3, and ensures that an area provided in the negative dielectric material 1 to receive the positive dielectric thin film 3 has an aspect ratio D/P1 of about 1.9, a figure well achievable in the state of the art.
    • 本发明的主要目的在于提供一种利用表面波的电磁波谐振器:能够利用现有技术实现的电磁波谐振器结构,而且难以实现,并向正电介质区域施加电压,从而克服各种问题 这是因为只有热激发才能使用。 负电介质材料1的表面上设置这种电磁波谐振器所需负电介质/正电介质/负电介质的接触结构,正如正电介质薄膜3在Y轴方向上延伸的同轴结构 并且容纳在其中的负电介质材料2在轴向上被切割。 这确保了夹在其间的正电介质薄膜3的负电介质材料1和2被电绝缘,使得可以将电压施加到正电介质薄膜3,并且确保设置在负电介质材料1至 接收正电介质薄膜3具有约1.9的纵横比D / P1,这在现有技术中可以实现。