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    • 3. 发明申请
    • Method and Circuit for LED Driver Dimming
    • LED驱动器调光方法与电路
    • US20140167634A1
    • 2014-06-19
    • US13716677
    • 2012-12-17
    • INFINEON TECHNOLOGIES NORTH AMERICA CORP.
    • Mladen IvankovicFred Sawyer
    • H05B37/02
    • H05B33/0851H05B33/0815Y02B20/347
    • An LED driver includes a transformer, current control loop and current adjustment circuit. The primary side of the transformer transfers energy to the secondary side of the transformer responsive to an input signal. The secondary side delivers output current to one or more LEDs at a magnitude corresponding to the amount of energy transferred to the secondary side. The current control loop controls current in the primary side so that the output current equals a reference current signal. The current adjustment circuit injects a current adjustment signal into the current control loop responsive to a phase-cut signal which removes a portion of the input signal. The current control loop also decreases the current in the primary side responsive to the current adjustment signal so that a brightness of each LED connected to the secondary side is decreased by an amount corresponding to the magnitude of the current adjustment signal.
    • LED驱动器包括变压器,电流控制回路和电流调节电路。 变压器的初级侧根据输入信号将能量传递到变压器的次级侧。 次级侧以对应于传输到次级侧的能量的量的大小向一个或多个LED提供输出电流。 电流控制环路控制初级侧的电流,使输出电流等于参考电流信号。 电流调节电路响应于消除输入信号的一部分的相位切断信号将电流调节信号注入电流控制环路。 响应于当前调整信号,电流控制回路还减小初级侧的电流,使得连接到次级侧的每个LED的亮度减小与当前调节信号的幅度相对应的量。
    • 4. 发明申请
    • Electro-static discharge protection circuit and method for making the same
    • 静电放电保护电路及其制作方法
    • US20040256675A1
    • 2004-12-23
    • US10464382
    • 2003-06-17
    • Infineon Technologies North America Corp.
    • Grant McNeil
    • H01L023/62
    • H01L27/0255H01L27/10841H01L27/10897
    • As disclosed herein, an electrostatic discharge (ESD) protection circuit is provided for an integrated circuit including a semiconductor substrate. The ESD protection circuit includes a plurality of active devices formed in the semiconductor substrate, the active devices being formed by a process including a plurality of steps carried out to form, at the same time, a plurality of active devices having a function other than ESD protection. For example, the ESD circuit may include an array of vertical transistors formed according to a process including many of the steps used to form, at the same time, vertical transistors of a DRAM array. Also disclosed is the formation of an ESD circuit in an nullunusablenull area of a semiconductor chip, such as under a bond pad, land or under bump metallization of the chip.
    • 如本文所公开的,为包括半导体衬底的集成电路提供了静电放电(ESD)保护电路。 ESD保护电路包括形成在半导体衬底中的多个有源器件,有源器件通过包括多个步骤的处理形成,同时形成具有除了ESD之外的功能的多个有源器件 保护。 例如,ESD电路可以包括根据包括用于同时形成DRAM阵列的垂直晶体管的许多步骤的工艺形成的垂直晶体管阵列。 还公开了在半导体芯片的“不可用”区域中形成ESD电路,例如在焊盘下方,芯片的焊盘或凸块下方金属化。
    • 10. 发明申请
    • Voltage down converter for low voltage operation
    • 降压转换器用于低电压工作
    • US20040150423A1
    • 2004-08-05
    • US10358581
    • 2003-02-05
    • Infineon Technologies North America Corp.
    • Jungwon Suh
    • H03K019/0175
    • H03K19/018578
    • A voltage down converter for a semiconductor memory device to convert an external voltage to a lower value internal voltage for the device, has a voltage generator that produces a reference voltage corresponding to the value of the internal voltage, a comparator having opposite polarity inputs for producing an amplified output control signal, and a pull-up device operating from the external voltage that receives the control signal from the comparator to produce the internal voltage as an input. A dual source follower is located between the reference voltage generator and comparator and has two sections having cross-coupled inputs which respectively receive the internal reference voltage and the internal voltage to produce output voltages moving in opposite directions, each of which is applied to one input of the comparator, thereby translating the difference between Vintref and Vint to a level in a range that can be better amplified by the comparator.
    • 用于将外部电压转换为器件的较低值内部电压的半导体存储器件的降压转换器具有产生与内部电压值相对应的参考电压的电压发生器,具有相反极性输入的比较器,用于产生 放大的输出控制信号和从外部电压工作的上拉装置,其接收来自比较器的控制信号以产生内部电压作为输入。 双源极跟随器位于参考电压发生器和比较器之间,并且具有两个部分,其交叉耦合输入分别接收内部参考电压和内部电压,以产生沿相反方向移动的输出电压,每个输入电压施加到一个输入端 的比较器,从而将Vintref和Vint之间的差异转换为可以被比较器更好地放大的范围内的电平。