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    • 11. 发明授权
    • Processes for the production of polycarbonate
    • 聚碳酸酯生产工艺
    • US06288203B1
    • 2001-09-11
    • US09068561
    • 1999-05-05
    • Akihiro ShishikuraSeiji Takahashi
    • Akihiro ShishikuraSeiji Takahashi
    • C08G6400
    • C08G64/307C08G64/20
    • Processes for producing polycarbonate by solid phase polymerization which simplify the crytallization to be conducted prior to the solid phase polymerization to thereby permit further shortening in the treatment time. A process for producing polycarbonate is characterized in that an amorphous polycarbonate prepolymer prepared by transesterification of aromatic dihydroxy compound with a diester of carbonic acid is prepolymerized in a solid phase under an atmosphere containing gaseous swollen solvent while the prepolymer is kept in a fluid state. Another process for producing polycarbonate is characterized in that a mixture comprising an amorphous polycarbonate prepolymer prepared by transesterification of an aromatic dihydroxy compound with a diester of carbonic acid and a polycarbonate prepolymer which has undergone crystallization is prepolymerized in a solid phase under an atmosphere containing a gaseous swollen solvent.
    • 通过固相聚合生产聚碳酸酯的方法,其简化在固相聚合之前进行的凝固,从而允许在处理时间内进一步缩短。 制备聚碳酸酯的方法的特征在于,通过芳香族二羟基化合物与碳酸二酯的酯交换反应制备的无定形聚碳酸酯预聚物在含有气体溶胀溶剂的气氛下在固相中预聚合,同时将预聚物保持在流体状态。 制备聚碳酸酯的另一种方法的特征在于,通过将芳族二羟基化合物与碳酸二酯和已经经过结晶的聚碳酸酯预聚物的酯交换反应制备的包含无定形聚碳酸酯预聚物的混合物在固相中在含有气态 溶胀溶剂。
    • 15. 发明授权
    • Wire protection method and wire protection device
    • 线路保护方法和线路保护装置
    • US08767367B2
    • 2014-07-01
    • US13773083
    • 2013-02-21
    • Yutaka HiguchiSeiji Takahashi
    • Yutaka HiguchiSeiji Takahashi
    • H02H5/04
    • G01K7/42G01K3/005H02H6/005H02H7/228
    • With a wire protection method in accordance with the present invention, the method being used for supplying electric power from a power source to a load, an applied-current to the load is detected every predetermined time, A wire rise temperature is calculated using the detected applied-current I(n) and by a relational expression concerning heat radiation and heat generation of the wire. The calculated rise in temperature is added to a reference temperature so that a wire temperature is estimated. When the estimated wire temperature is lower than a predetermined upper limit temperature, the calculation of the rise in temperature is repeated. When the estimated wire temperature has become equal to or higher than the predetermined upper limit temperature, the electric power supply from the power source to the load is stopped so that the wire is protected.
    • 根据本发明的线路保护方法,用于从电源向负载提供电力的方法,每隔预定时间检测到负载的施加电流,使用检测到的电线上升温度 施加电流I(n)和关于电线的热辐射和发热的关系表达式。 将计算的温度升高加到参考温度,以便估算出导线温度。 当估计的线温度低于预定的上限温度时,重复温度上升的计算。 当估计的导线温度变得等于或高于预定的上限温度时,停止从电源到负载的电力供应,使得电线被保护。
    • 17. 发明授权
    • Power supply controller
    • 电源控制器
    • US08730635B2
    • 2014-05-20
    • US13392243
    • 2010-09-24
    • Seiji TakahashiYutaka Higuchi
    • Seiji TakahashiYutaka Higuchi
    • H02H5/04
    • H02H3/087H02H3/006H02H3/085H02J7/0031H02M1/32H02M2001/327
    • If a power supply path is in an abnormal state, a power-supply-path protection circuit of a power supply controller inhibits a switching circuit that switches on/off power supply from a power source to a load from power supply, using data related to a protection-current temperature characteristic line set by a characteristic setting circuit. The protection-current temperature characteristic line has a characteristic in which a protection current value is constant corresponding to increase in an ambient temperature or a negative characteristic in which the protection current value reduces corresponding to increase in the ambient temperature. Within a temperature range equal to or lower than an supposed maximum ambient temperature around the power-supply-path, the protection-current temperature characteristic line and a power-supply-path temperature characteristic line have a relation that the protection-current value is equal to or lower than an allowable current value at an identical ambient temperature.
    • 如果供电路径处于异常状态,则电源控制器的电源路径保护电路禁止使用与电源相关的数据从电源向电源​​供电的开关电路 由特性设定电路设定的保护电流温度特性线。 保护电流温度特性线具有其中保护电流值恒定的特性,其对应于环境温度的增加或保护电流值随着环境温度的增加而降低的负特性。 在等于或低于电源路径周围的最大环境温度的温度范围内,保护电流温度特性线和电源路径温度特性线具有保护电流值相等的关系 在相同的环境温度下达到或低于允许电流值。
    • 18. 发明授权
    • Power supply controller
    • 电源控制器
    • US08598859B2
    • 2013-12-03
    • US12227604
    • 2007-05-22
    • Masahiko FuruichiSeiji Takahashi
    • Masahiko FuruichiSeiji Takahashi
    • G05F1/56G05F1/565
    • H03K17/0822H03K17/687
    • A first current corresponding to the drain-to-source voltage of a power MOSFET can pass through an FET; and a second current corresponding to a constant voltage can pass through an FET; a third current corresponding to the difference determined by subtracting the first current from the second current can pass into threshold setting resistors from the connecting point between FETs. Consequently, divided voltages at the connecting points between the threshold setting resistors varies directly with a voltage corresponding to the difference determined by subtracting the drain-to-source voltage of the power MOSFET from the constant voltage.
    • 与功率MOSFET的漏极 - 源极电压相对应的第一电流可以通过FET; 并且对应于恒定电压的第二电流可以通过FET; 对应于通过从第二电流减去第一电流确定的差的第三电流可以从FET之间的连接点传递到阈值设置电阻器。 因此,阈值设定电阻之间的连接点处的分压电压直接对应于通过从恒定电压减去功率MOSFET的漏极 - 源极电压所确定的差值的电压而直接变化。
    • 20. 发明授权
    • Power supply controller
    • 电源控制器
    • US08514537B2
    • 2013-08-20
    • US13496386
    • 2010-09-24
    • Yutaka HiguchiSeiji Takahashi
    • Yutaka HiguchiSeiji Takahashi
    • H02H5/04
    • H02M3/156H02P29/0241H02P29/68
    • A power supply controller includes a switch circuit to be provided between the power source and power supply path, the switch circuit switches the power supply from the power source to the load between on and off, and a power-supply-path protection circuit. The power-supply-path protection circuit controls switching operation of the switch circuit according to a power-supply command signal that commands to start or terminate the power supply to the load, to calculate a temperature of the power-supply path, and if the calculated temperature reaches a predetermined upper limit, to inhibit the switch circuit from the power supply, thereby protecting the power-supply path. In a case where the power supply by the switch circuit is inhibited, if the temperature of the power supply path decreases to a predetermined threshold temperature, the power-supply-path protection circuit removes inhibition of the power supply by the switch circuit.
    • 电源控制器包括设置在电源和电源路径之间的开关电路,开关电路将电源从电源切换到负载之间的导通和关断以及电源路径保护电路。 电源路径保护电路根据指示开始或终止对负载的电源的电源指令信号来控制开关电路的开关动作,计算供电路径的温度,如果 计算出的温度达到预定的上限,以阻止开关电路与电源的连接,从而保护电源路径。 在禁止开关电路的电源的情况下,如果供电路径的温度降低到预定的阈值温度,则电源路径保护电路去除对开关电路的电源的禁止。