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    • 3. 发明申请
    • VOLTAGE/CURRENT CONTROL APPARATUS AND METHOD
    • 电压/电流控制装置及方法
    • US20120293144A1
    • 2012-11-22
    • US13109922
    • 2011-05-17
    • Yu Cheng Chang
    • Yu Cheng Chang
    • G05F1/10
    • H02M3/1588H02M2001/0009H02M2001/0025Y02B70/1466
    • A voltage/current control apparatus and method are disclosed. The apparatus includes a low-side field effect transistor (FET) having a source, a gate and a drain, a high-side field effect transistor (FET) having a source, a gate and a drain, a gate driver integrated circuit (IC), a sample and hold circuit, and a comparator configured to produce a trigger signal at the output when a sum of the first and second input signals is equal to a sum of the third and fourth input signals, wherein the trigger signal is configured to trigger a beginning of a new cycle by turning the gate of the high-side FET “on” and the gate of the low-side FET “off”.
    • 公开了电压/电流控制装置和方法。 该装置包括具有源极,栅极和漏极的低侧场效应晶体管(FET),具有源极,栅极和漏极的高侧场效应晶体管(FET),栅极驱动器集成电路(IC ),采样保持电路和比较器,被配置为当第一和第二输入信号的和等于第三和第四输入信号的和时在输出端产生触发信号,其中触发信号被配置为 通过转动高侧FET的栅极导通并关闭低边FET的栅极来触发新周期的开始。
    • 4. 发明授权
    • Planar SRFET using no additional masks and layout method
    • 平面SRFET使用无附加掩模和布局方法
    • US08110869B2
    • 2012-02-07
    • US11906476
    • 2007-10-01
    • Anup Bhalla
    • Anup Bhalla
    • H01L29/76H01L29/94H01L31/062H01L31/113H01L31/119
    • H01L29/7811H01L29/0619H01L29/0692H01L29/0696H01L29/0878H01L29/1095H01L29/4236H01L29/456H01L29/47H01L29/66734H01L29/7806H01L29/7813H01L29/872H01L29/8725
    • A semiconductor power device supported on a semiconductor substrate of a first conductivity type with a bottom layer functioning as a bottom electrode and an epitaxial layer overlying the bottom layer with a same conductivity type as the bottom layer. The semiconductor power device includes a plurality of FET cells and each cell further includes a body region of a second conductivity type extending from a top surface into the epitaxial layer. The body region encompasses a heavy body dopant region of second conductivity type. An insulated gate is disposed on the top surface of the epitaxial layer, overlapping a first portion of the body region. A barrier control layer is disposed on the top surface of the epitaxial layer next to the body region away from the insulated gate. A conductive layer overlies the top surface of the epitaxial layer covering a second portion of the body region and the heavy body dopant region extending over the barrier control layer forming a Schottky junction diode.
    • 一种半导体功率器件,其被支撑在第一导电类型的半导体衬底上,底层用作底部电极,外延层覆盖在与底层相同的导电类型的底层上。 半导体功率器件包括多个FET单元,并且每个单元还包括从顶表面延伸到外延层中的第二导电类型的体区。 身体区域包括第二导电类型的重体掺杂区域。 绝缘栅极设置在外延层的顶表面上,与身体区域的第一部分重叠。 屏障控制层设置在远离绝缘栅极的身体区域旁边的外延层的顶表面上。 覆盖覆盖主体区域的第二部分的外延层的顶表面上的导电层和在形成肖特基结二极管的势垒控制层上延伸的重体掺杂区域。
    • 6. 发明授权
    • Voltage/current control apparatus and method
    • 电压/电流控制装置及方法
    • US07977930B2
    • 2011-07-12
    • US12468770
    • 2009-05-19
    • Yu Cheng Chang
    • Yu Cheng Chang
    • G05F1/575G05F1/618
    • H02M3/1588H02M3/157Y02B70/1466
    • A voltage/current control apparatus and method are disclosed. The apparatus includes a low-side field effect transistor (FET) having a source, a gate and a drain, a high-side field effect transistor (FET) having a source, a gate and a drain, a gate driver integrated circuit (IC), a sample and hold circuit, and a comparator configured to produce a trigger signal at the output when a sum of the first and second input signals is equal to a sum of the third and fourth input signals, wherein the trigger signal is configured to trigger a beginning of a new cycle by turning the gate of the high-side FET “on” and the gate of the low-side FET “off”.
    • 公开了电压/电流控制装置和方法。 该装置包括具有源极,栅极和漏极的低侧场效应晶体管(FET),具有源极,栅极和漏极的高侧场效应晶体管(FET),栅极驱动器集成电路(IC ),采样保持电路和比较器,被配置为当第一和第二输入信号的和等于第三和第四输入信号的和时在输出端产生触发信号,其中触发信号被配置为 通过使高侧FET的栅极“开”并且低边FET的栅极“关闭”来触发新周期的开始。
    • 9. 发明授权
    • Circuit configurations to reduce snapback of a transient voltage suppressor
    • 电路配置,以减少瞬态电压抑制器的快速恢复
    • US07933102B2
    • 2011-04-26
    • US12454333
    • 2009-05-15
    • Shekar Mallikararjunaswamy
    • Shekar Mallikararjunaswamy
    • H02H9/00
    • H01L27/0262H01L29/87
    • This invention discloses an electronic device formed as an integrated circuit (IC) wherein the electronic device further includes a transient voltage suppressing (TVS) circuit. The TVS circuit includes a triggering Zener diode connected between an emitter and a collector of a bipolar-junction transistor (BJT) wherein the Zener diode having a reverse breakdown voltage BV less than or equal to a BVceo of the BJT where BVceo stands for a collector to emitter breakdown voltage with base left open. The TVS circuit further includes a rectifier connected in parallel to the BJT for triggering a rectified current through the rectifier for further limiting an increase of a reverse blocking voltage. In a preferred embodiment, the triggering Zener diode, the BJT and the rectifier are formed in a semiconductor substrate by implanting and configuring dopant regions of a first and a second conductivity types in a N-well and a P-well whereby the TVS can be formed in parallel as part of the manufacturing processes of the electronic device.
    • 本发明公开了一种形成为集成电路(IC)的电子设备,其中电子设备还包括瞬态电压抑制(TVS)电路。 TVS电路包括连接在双极结型晶体管(BJT)的发射极和集电极之间的触发齐纳二极管,其中齐纳二极管的反向击穿电压BV小于或等于BJT的BVceo,其中BVceo代表集电极 到发射极击穿电压,基极左开。 TVS电路还包括与BJT并联连接的整流器,用于触发整流器的整流电流,用于进一步限制反向阻断电压的增加。 在优选实施例中,触发齐纳二极管,BJT和整流器通过在N阱和P阱中注入和配置第一和第二导电类型的掺杂区而形成在半导体衬底中,由此TVS可以 作为电子设备的制造过程的一部分并行形成。