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
    • 2. 发明专利
    • CONTROLLER FOR WINDER
    • JPH06292388A
    • 1994-10-18
    • JP7844593
    • 1993-04-06
    • TOSHIBA ENGINEERING COTOSHIBA CORP
    • KAKIUCHI YUICHISEKINE SHIGERU
    • H02P7/298H02P7/00H02P7/06H02P29/00H02P29/20H02P29/40H02P29/60
    • PURPOSE:To perform stall tension operation for as long as possible when the diameter of a rewind roll is small by allowing a field current at the time of the maximum coil diameter to flow at the time of stall operation to reduce an armature current. CONSTITUTION:The reference of an armature current is provided by a reference calculation circuit 4 for generating the reference of the armature current at the time of stall operation from each output of a reference generator 2 for providing the reference of the maximum field current and a coil diameter detecting circuit 3 in accordance with the reference of tensile force provided by a stall tension setting device 1 for providing a stall tension reference at the time of stall operation. On the other hand, the output of a tension detector 5 for detecting actual tensile force is calculated in comparison with the reference of tensile force of the tension setting device 1 to add the output of a tension control circuit 6 for performing tension control to the reference of an armature current as a corrective signal and to provide an armature current reference signal to the current control circuit 7 of a driving device. Thereby, since a stall current become small, the permissible time of stall operation can be extended.
    • 5. 发明专利
    • LOAD SHARING CONTROLLER FOR MOTOR
    • JPS6364599A
    • 1988-03-23
    • JP20682386
    • 1986-09-04
    • TOSHIBA CORP
    • SEKINE SHIGERU
    • H02P23/00H02P23/07
    • PURPOSE:To contrive a device to share a load almost uniformly, by controlling an inverter in case that a driving device is partially renewed to drive the inverter on the load in which load sharing and variable-speed control is conducted by secondary resistance control. CONSTITUTION:An IM 4 for secondary resistance control and an IM 5 for inverter control are directly connected to the same machine shaft to bear a load 12. By a secondary resistance command circuit 8, the speed command signal of output generated from a running speed setting device 7 is compared with an actual rotational speed detected by a rotational speed detector 3, and a secondary resistance value is selected, and command is directed to a secondary contactor 2. By an output torque arithmetic circuit 9, arithmetic is performed on the actual torque of the secondary resistance control IM 4 through the resistance value and an actual rotational speed. From a frequency reference generating circuit 10, the reference frequency of an inverter 11 is generated through actual torque and the actual rotational speed.
    • 10. 发明专利
    • PERSONAL COMPUTER SYSTEM
    • JPH03164819A
    • 1991-07-16
    • JP30202889
    • 1989-11-22
    • TOSHIBA CORP
    • SEKINE SHIGERU
    • G06F1/26
    • PURPOSE:To eliminate the need for power sequence by providing an external equipment with a power control circuit which detects the turning-on/off state of the power source of a computer main body and turns on/off the power source of its own external equipment synchronously with this detection. CONSTITUTION:The power-on/off signal accompanied with the power switch operation of a personal computer main body A is sent to an extended external equipment B through an extension bus 9 of the personal computer A, and the extended external equipment B controls power-on/off synchronously with the power-on/off signal. Thus, on/off controlling the external equipment B simultaneously with the power switch 1 of the personal computer main body A, the personal computer main body A and the external device B are operated as if they had the same power source. Thus, power sequence is eliminated and circuit elements such as a buffer and a driver ICC are eliminated, as well.