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    • 1. 发明授权
    • Battery charge control circuit
    • 电池充电控制电路
    • US6031357A
    • 2000-02-29
    • US289912
    • 1999-04-13
    • Katsuaki YanoYasuhisa Higashijima
    • Katsuaki YanoYasuhisa Higashijima
    • H02J7/10G05F1/56G05F3/26H02J7/00H01M10/46
    • H02J7/0052H02J7/0029
    • A battery charge control circuit has a first transistor and a second transistor. The first transistor is cut off when an output terminal voltage is lower than a line terminal voltage and closes when it is not. The second transistor closes when the first terminal is cut off so as to supply an actuating current to a circuit generating a constant voltage. The closing of the second transistor causes an output transistor current to be variably adjusted and a battery connected to the output terminal to be charged using only the first and second transistors. This simple circuit structure makes it possible to reduce the number of elements and thus the size of the battery charge control circuit and to prevent improper operation.
    • 电池充电控制电路具有第一晶体管和第二晶体管。 当输出端子电压低于线路端子电压时,第一个晶体管被截止,当不输出端子电压时闭合。 当第一端子被切断时,第二晶体管闭合,以向产生恒定电压的电路提供致动电流。 第二晶体管的闭合导致输出晶体管电流可变地调节,并且连接到输出端子的电池仅使用第一和第二晶体管进行充电。 这种简单的电路结构使得可以减少元件的数量,从而减小电池充电控制电路的尺寸并防止不正确的操作。
    • 3. 发明授权
    • Scroll compressor suitable for a low operating pressure ratio
    • 涡旋压缩机适用于低工作压力比
    • US06478557B2
    • 2002-11-12
    • US09848442
    • 2001-05-04
    • Masao ShiibayashiYasushi IzunagaKatsuaki Yano
    • Masao ShiibayashiYasushi IzunagaKatsuaki Yano
    • F04C1804
    • F04C18/0276
    • A scroll compressor using helium gas as working gas, has a fixed scroll and an orbiting scroll, engaged with each other, each having a scroll tooth profile shape of a set volume ratio of a scroll wrap portion of 1.8 to 2.3. The set volume ratio of a scroll wrap portion is defined by the following expression: Vr = 2 ⁢ λ 1 - 4 ⁢ π + α 2 ⁢ λ s + 2 ⁢ π + α where Vr: set volume ratio of a scroll wrap portion, &lgr;1: an angle at a wrap winding end portion (Involute angle), &lgr;s: an angle at a wrap winding start portion (Involute angle), &pgr;: circle ratio, &agr;: ratio of an orbiting radius (&egr;th) to a base circle radius (a) of the scroll wrap (&egr;th/a)
    • 一种使用氦气作为工作气体的涡旋压缩机,具有固定涡旋件和绕动涡旋件,彼此接合,每个具有1.8至2.3的涡卷部分的设定体积比的涡形齿廓形状。 卷绕部分的设定体积比由以下表达式定义:其中Vr:卷绕部分的卷积比,lambd1:卷绕卷绕端部处的角度(卷入角度),纱线:包裹处的角度 卷绕起始部分(卷积角),pi:圆比,α:涡旋包裹体的轨道半径(epsith)与基圆半径(a)的比率(epsith / a)