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    • 85. 发明申请
    • MOTOR CONTROLLER AND ELECTRIC TOOL HAVING THE SAME
    • 具有电机控制器和电动工具
    • US20100308764A1
    • 2010-12-09
    • US12734645
    • 2008-12-01
    • Jiro SuzukiTakuya Kusakawa
    • Jiro SuzukiTakuya Kusakawa
    • H02P7/06
    • B25F5/00B25B21/02H02P6/12H02P6/24H02P6/28H02P29/032
    • A motor controller comprises a processor selectively outputting an on-signal to either one of an upper arm switching element and a lower arm switching element based upon a detected position by the position sensor, gate drivers inputting a driving voltage to the gates of the switching elements by shifting a level of the on-signal from the processor to the upper arm switching element and a bootstrap capacitor configured to be charged while the upper arm switching element is turned off and to behave as a voltage supply for the gate driver while the upper arm switching element is turned on. The processor is configured to reduce a set duty ratio when the set duty ratio is equal to or larger than a predetermined value (e.g. 80 percents) and a rotational position of the motor does not change for a first predetermined time. This motor controller can prevent the switching element from a burnout even if the motor is locked.
    • 电动机控制器包括:处理器基于位置传感器的检测位置,选择性地将接通信号输出到上臂开关元件和下臂开关元件中的任一个,栅极驱动器将驱动电压输入到开关元件的栅极 通过将来自处理器的导通信号的电平移动到上臂开关元件和被配置为在上臂开关元件关闭时被充电并且作为栅极驱动器的电压供应而起作用的自举电容器,而上臂 开关元件导通。 处理器被配置为当设定的占空比等于或大于预定值(例如80%)时减小设定的占空比,并且电动机的旋转位置在第一预定时间内不改变。 即使电机被锁定,该电机控制器也可以防止开关元件烧坏。
    • 90. 发明授权
    • Catalytic combustion system and combustion control method
    • 催化燃烧系统和燃烧控制方法
    • US06270336B1
    • 2001-08-07
    • US09325900
    • 1999-06-04
    • Tetsuo TerashimaKiyoshi TaguchiYoshitaka KawasakiMotohiro SuzukiJiro Suzuki
    • Tetsuo TerashimaKiyoshi TaguchiYoshitaka KawasakiMotohiro SuzukiJiro Suzuki
    • F23D1144
    • F23C13/00F23C6/04F23C13/02F23C13/08F23C2201/30
    • A combustion control method for use in a catalytic combustion system having (a) a gaseous mixture inlet port, located at the upstream side of said catalytic combustion system, for the entrance of a fuel-air mixture; (b) an exhaust gas outlet port, located at the downstream side of said catalytic combustion system, for the exit of an exhaust gas; (c) a primary combustion chamber in which a catalyst body is disposed, said catalyst body being formed of a porous base material with numerous communicating holes that supports thereon an oxidation catalyst; (d) a secondary supply port, located downstream of said primary combustion chamber, for the supply of a gaseous mixture or air; and (e) a secondary combustion chamber located downstream of said secondary supply port; comprising such process that an excess air ratio of said primary combustion chamber is initially set above 1 and after the rate of combustion of said secondary combustion chamber exceeds a given level, combustion is made to take place, with the excess air ratio of said primary combustion chamber set below 1.
    • 一种用于催化燃烧系统的燃烧控制方法,其具有(a)位于所述催化燃烧系统的上游侧的用于进入燃料 - 空气混合物的气体混合物入口;(b)排气出口 位于所述催化燃烧系统的下游侧,用于排出废气;(c)初级燃烧室,其中设置有催化剂体,所述催化剂体由具有许多连通孔的多孔基材形成,所述多孔基材具有许多连通孔, 在其上支撑氧化催化剂;(d)位于所述主燃烧室下游的用于供应气体混合物或空气的二次供应口; 并且(e)位于所述二次供应口的下游的二次燃烧室;包括以下过程:所述主燃烧室的过量空气比初始设定在1以上,并且在所述二次燃烧室的燃烧速率超过给定水平之后,燃烧 使所述主燃烧室的过量空气比设定为低于1。