Amineoxide Type Surfactant and Detergent Composition Comprising It
    1.
    发明申请
    Amineoxide Type Surfactant and Detergent Composition Comprising It 有权
    胺氧化物型表面活性剂和洗涤剂组合物

    公开(公告)号:US20080039655A1

    公开(公告)日:2008-02-14

    申请号:US11842918

    申请日:2007-08-21

    IPC分类号: C07C233/02

    CPC分类号: C11D1/75

    摘要: An amine oxide type surfactant, which has excellent compatibility with an anionic or non-ionic surfactant having excellent detergency and shows excellent detergency and softening effect, is represented by the following formula 1: wherein R1 and R2 are the same or different, and each independently represents a C8˜C22 linear or branched alkyl or alkenyl group; A represents a C1˜C4 alkyl, alkenyl or hydroxyalkyl group; X represents OH, a C1˜C4 alkyl, hydroxyalkyl, (CH2CH2O)nH, (CHCH3CH2O)nH or a combination of (CH2CH2O)nH and (CHCH3CH2O)nH; and n is a number of 1˜30.

    摘要翻译: 与具有优异的去污力和显示出优异的去污力和软化效果的阴离子或非离子表面活性剂具有优异的相容性的氧化胺型表面活性剂由下式1表示:其中R 1和R 2, SUB> 2相同或不同,并且各自独立地表示C 12 -C 22直链或支链烷基或烯基; A表示C 1 -C 4烷基,烯基或羟烷基; X表示OH,C 1 -C 4烷基,羟烷基,(CH 2 CH 2 CH 2) H,(CHCH 3 CH 2 O)n H或H(CH 2)2的组合, H和(CHCH 3 CH 2 CH 2)n H(CH 2 CH 2 CH 2) H; n为1〜30的数。

    Scoop
    2.
    外观设计
    Scoop 有权

    公开(公告)号:USD850222S1

    公开(公告)日:2019-06-04

    申请号:US29630719

    申请日:2017-12-22

    申请人: Dong Han

    设计人: Dong Han

    Circuit Module For Silicon Condenser Microphone
    3.
    发明申请
    Circuit Module For Silicon Condenser Microphone 有权
    硅电容麦克风电路模块

    公开(公告)号:US20160173993A1

    公开(公告)日:2016-06-16

    申请号:US14832535

    申请日:2015-08-21

    IPC分类号: H04R19/04 H04R3/02

    摘要: A circuit module for a silicon condenser microphone of the present disclosure includes a transducer, a charge pump, an isolator, a first amplifier, a second amplifier, a reaction circuit, a first bias circuit, and a second bias circuit. The charge pump electrically connects to an input port of the transducer, and an output port of the transducer electrically connects to an input port of the first amplifier via the isolator. An output port of the first amplifier electrically connects to an input port of the second amplifier. The reaction circuit is arranged between the output port of the first amplifier and the input port of the transducer. The isolator isolates the direct-current components of the first electrical signal, and therefore, the oscillations of the direct-current components will not affect the performance of the first amplifier.

    摘要翻译: 本公开的用于硅电容式麦克风的电路模块包括换能器,电荷泵,隔离器,第一放大器,第二放大器,反应电路,第一偏置电路和第二偏置电路。 电荷泵电连接到换能器的输入端口,并且换能器的输出端口通过隔离器电连接到第一放大器的输入端口。 第一放大器的输出端口电连接到第二放大器的输入端口。 反应电路设置在第一放大器的输出端口和换能器的输入端口之间。 隔离器隔离第一电信号的直流分量,因此直流分量的振荡不会影响第一放大器的性能。