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    • 61. 发明授权
    • High voltage durability III-nitride device
    • 高耐压III族氮化物器件
    • US09281387B2
    • 2016-03-08
    • US14459726
    • 2014-08-14
    • International Rectifier Corporation
    • Michael A. Briere
    • H01L31/0328H01L31/0336H01L31/072H01L31/109H01L29/778H01L29/04H01L29/20H01L29/66
    • H01L29/778H01L21/8258H01L29/045H01L29/2003H01L29/66462H01L29/7786H01L29/7787
    • A high voltage durability III-nitride semiconductor device comprises a support substrate including a first silicon body, an insulator body over the first silicon body, and a second silicon body over the insulator body. The high voltage durability III-nitride semiconductor device further comprises a III-nitride semiconductor body characterized by a majority charge carrier conductivity type, formed over the second silicon body. The second silicon body has a conductivity type opposite the majority charge carrier conductivity type. In one embodiment, the high voltage durability III-nitride semiconductor device is a high electron mobility transistor (HEMT) comprising a support substrate including a silicon layer, an insulator layer over the silicon layer, and a P type conductivity silicon layer over the insulator layer. The high voltage durability HEMT also comprises a III-nitride semiconductor body formed over the P type conductivity silicon layer, the III-nitride semiconductor body forming a heterojunction of the HEMT.
    • 高耐压III族氮化物半导体器件包括:支撑衬底,其包括第一硅体,位于第一硅体上的绝缘体,以及位于绝缘体上方的第二硅体。 高电压耐久性III族氮化物半导体器件还包括在第二硅体上形成的以多数电荷载流子导电型为特征的III族氮化物半导体体。 第二硅体具有与多数电荷载流子导电类型相反的导电类型。 在一个实施例中,高电压耐久性III族氮化物半导体器件是高电子迁移率晶体管(HEMT),其包含支撑衬底,该支撑衬底包括<100>硅层,在<100>硅层上的绝缘体层,以及P型导电性 <111>硅层。 高电压耐久性HEMT还包括在P型导电性<111>硅层上形成的III族氮化物半导体体,III族氮化物半导体体形成HEMT的异质结。
    • 62. 发明授权
    • Electronic ballast with power factor correction
    • 电子镇流器,功率因数校正
    • US09244476B2
    • 2016-01-26
    • US13715984
    • 2012-12-14
    • International Rectifier Corporation
    • Thomas J. RibarichPeter Bredemeier
    • H05B41/24G05F1/70H05B37/02H05B41/28H05B41/282H05B41/295
    • G05F1/70H05B37/02H05B41/28H05B41/2828H05B41/295Y02B20/186
    • According to an exemplary implementation, an electronic ballast includes an input filter coupled to a resonant tank. The resonant tank is configured to generate a resonant current. The input filter is configured to receive an AC input voltage and to generate an AC input current from the resonant current by smoothing the resonant current. The electronic ballast also includes a half-bridge configured to feed the resonant tank so as to generate the resonant current and to receive a supply voltage that is in phase with the AC input voltage. The electronic ballast can also include a controller configured to control a power factor of the electronic ballast by switching the half-bridge. The controller can be configured to adjust a shape of the AC input current by adjusting switching of the half-bridge to thereby adjust a power factor of the electronic ballast.
    • 根据示例性实施方式,电子镇流器包括耦合到谐振槽的输入滤波器。 谐振槽配置成产生谐振电流。 输入滤波器被配置为接收AC输入电压并且通过平滑谐振电流从谐振电流产生AC输入电流。 电子镇流器还包括配置为馈送谐振槽的半桥,以产生谐振电流并接收与AC输入电压同相的电源电压。 电子镇流器还可以包括被配置为通过切换半桥来控制电子镇流器的功率因数的控制器。 控制器可以被配置为通过调节半桥的切换来调节AC输入电流的形状,从而调节电子镇流器的功率因数。
    • 64. 发明授权
    • Efficient high voltage switching circuits and monolithic integration of same
    • 高效的高压开关电路及其整体集成
    • US09219058B2
    • 2015-12-22
    • US13020243
    • 2011-02-03
    • Michael A. Briere
    • Michael A. Briere
    • H01L29/15H01L27/06H01L29/778H03K17/567H01L21/8258H01L29/20H01L27/088
    • H01L27/0605H01L21/8258H01L27/0629H01L27/0883H01L29/2003H01L29/7787H03K17/567
    • A high voltage switching circuit includes first and second group III-V transistors, the second group III-V transistor having a greater breakdown voltage than the first group III-V transistor. The circuit further includes a silicon diode in a parallel arrangement with the first group III-V transistor, the parallel arrangement being in cascade with the second group III-V transistor. The circuit is effectively a three-terminal device, where a first terminal is coupled to a gate of the second III-V transistor, a source of the first III-V transistor, and an anode of the silicon diode. A second terminal is coupled to a gate of the first group III-V transistor, and a third terminal is coupled to a drain of the second group III-V transistor. The first group III-V transistor might be an enhancement mode transistor. The second group III-V transistor might be a depletion mode transistor. The first and second group III-V transistors can be GaN HEMTs.
    • 高压开关电路包括第一和第二组III-V晶体管,第二组III-V晶体管具有比第一组III-V晶体管更大的击穿电压。 电路还包括与第一组III-V晶体管并联布置的硅二极管,并联装置与第二组III-V晶体管级联。 该电路实际上是三端器件,其中第一端子耦合到第二III-V晶体管的栅极,第一III-V晶体管的源极和硅二极管的阳极。 第二端子耦合到第一组III-V晶体管的栅极,并且第三端子耦合到第二组III-V晶体管的漏极。 第一组III-V晶体管可以是增强型晶体管。 第二组III-V晶体管可能是耗尽型晶体管。 第一和第二组III-V晶体管可以是GaN HEMT。