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    • 2. 发明申请
    • TRANSIENT OVERVOLTAGE PROTECTION DEVICE
    • 瞬态过电压保护装置
    • US20160293591A1
    • 2016-10-06
    • US14678005
    • 2015-04-03
    • LITTELFUSE, INC.
    • Gary Mark BentleyJames Allan PetersSteve Wilton Byatt
    • H01L27/02H01L29/66
    • H01L27/0255H01L29/0661H01L29/66121H01L29/861
    • In one embodiment, an overvoltage protection device may include a semiconductor substrate comprising an n-type body region. The overvoltage protection device may further include a first p-type region disposed in a first surface region of the semiconductor substrate, and forming a first P/N junction with the n-type body region, and a second p-type region disposed in a second surface region of the semiconductor substrate opposite the first surface, and forming a second P/N junction with the n-type body region, wherein the n-type body region, first p-type region, and second p-type region form a breakdown device having a breakdown voltage greater than 100 V when an external voltage is applied between the first surface region and second surface region.
    • 在一个实施例中,过电压保护装置可以包括包括n型体区域的半导体衬底。 过电压保护装置还可以包括设置在半导体衬底的第一表面区域中的第一p型区域,以及与n型体区域形成第一P / N结,以及第二p型区域, 所述半导体衬底与所述第一表面相对的第二表面区域,以及与所述n型体区域形成第二P / N结,其中所述n型体区域,第一p型区域和第二p型区域形成 当在第一表面区域和第二表面区域之间施加外部电压时,具有大于100V的击穿电压的击穿装置。
    • 3. 发明申请
    • RESISTANCE CHANGE DEVICE PROVIDING OVERCURRENT PROTECTION
    • 提供过流保护的电阻变化器件
    • US20160241023A1
    • 2016-08-18
    • US14624142
    • 2015-02-17
    • LITTELFUSE, INC.
    • Gary Mark Bentley
    • H02H9/04
    • H02H9/025H02H9/041
    • An overcurrent protection device may include an input terminal to receive an input current; an output terminal coupled to the input terminal; and a current limiter circuit integrated into the silicon substrate and arranged between the input terminal and output terminal. The current limiter circuit may include a series pass element having a pass state characterized by a first electrical resistance and a limit state characterized by a second electrical resistance higher than the first electrical resistance, the series pass element comprising a series current sense element integrated into the silicon substrate and configured to receive the input current and to output a sense voltage based upon the received input current, wherein the series pass element is configured to place the current limiter circuit into the limit state when the sense voltage indicates that the input current exceeds a predetermined level.
    • 过电流保护装置可以包括用于接收输入电流的输入端子; 耦合到所述输入端子的输出端子; 以及集成在硅衬底中并设置在输入端子和输出端子之间的限流器电路。 电流限制器电路可以包括具有通过状态表征的通过状态的串联通道元件,其特征在于第一电阻和特征在于高于第一电阻的第二电阻的极限状态,串联通过元件包括集成到第一电阻中的串联电流检测元件 并且被配置为接收所述输入电流并且基于所接收的输入电流输出感测电压,其中所述串联通过元件被配置为当所述感测电压指示所述输入电流超过所述输入电流时将所述限流器电路置于极限状态 预定水平。