会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Method of preventing generation of earth circulating current in
induction heating apparatus for molten steel
    • 防止在钢水感应加热装置中产生地球循环电流的方法
    • US5437434A
    • 1995-08-01
    • US276800
    • 1994-07-18
    • Yoji AoIsao TokudaMinoru Honda
    • Yoji AoIsao TokudaMinoru Honda
    • B22D11/10B22D41/01F27D11/06H05B6/10H05B6/16H05B6/20
    • F27D11/06B22D41/01H05B6/16H05B6/20
    • There is disclosed a method by which a channel-type induction heating apparatus is provided on a tundish, which comprises a steel receiving chamber and a steel discharging chamber separated by a refractory wall, each of which chambers is connected to the ground via molten steel flowing from a ladle, molten steel flowing into a mold, or a refractory, in such a manner that ground circulating current is prevented from being generated. An electromagnetic connection of an induction heating coil and an iron core of a two-leg type or a three-leg type to a loop current circuit in the molten steel is arranged symmetrically, thereby suppressing the generation of the ground circulating current. By thus suppressing the generation of the ground circulating current, it becomes unnecessary to insulate a ground circuit as required in conventional constructions, the maintenance of facilities becomes easier, besides any malfunction of the equipment due to the ground circulating current is totally eliminated.
    • 公开了一种在中间包上设置通道式感应加热装置的方法,该中间包包括钢容纳室和由耐火壁隔开的钢排放室,每个室通过钢水流动连接到地面 从浇包,流入模具的钢水或耐火材料中,以防止产生地面循环电流的方式。 感应加热线圈和双腿式或三腿式铁芯与钢水中的回路电路的电磁连接对称配置,从而抑制地面循环电流的产生。 通过这样抑制地面循环电流的产生,除了完全消除由于地面循环电流引起的设备故障之外,不需要按照传统结构的要求使接地电路绝缘,因此设备的维护变得容易。
    • 5. 发明授权
    • Power supply circuit
    • 电源电路
    • US07772813B2
    • 2010-08-10
    • US11639280
    • 2006-12-15
    • Tomokazu KojimaMinoru Honda
    • Tomokazu KojimaMinoru Honda
    • G05F1/00
    • H03F3/45475H03F1/56H03F2203/45674
    • An operational amplifier generates a power supply potential from a reference potential. An impedance adjuster adjusts an output impedance of the operational amplifier in accordance with a control signal. A charge accumulator accumulates an output charge of the operational amplifier whose impedance is adjusted by the impedance adjuster. A comparator compares an output voltage of the operational amplifier before the impedance adjustment by the impedance adjuster and the output voltage of the operational amplifier after the impedance adjustment by the impedance adjuster to each other, and the comparator further generates the control signal in accordance with a result of the comparison so as to output the generated control signal to the impedance adjuster.
    • 运算放大器从参考电位产生电源电位。 阻抗调节器根据控制信号调整运算放大器的输出阻抗。 电荷累加器累积运算放大器的输出电荷,其阻抗由阻抗调节器调节。 比较器在通过阻抗调节器进行的阻抗调整之后,将由阻抗调节器进行的阻抗调整之前的运算放大器的输出电压与运算放大器的输出电压进行比较,并且比较器进一步根据 比较结果,将所生成的控制信号输出到阻抗调节器。