发明名称 |
Load state detecting apparatus of an induction motor for controlling the spin dryer of a washing machine |
摘要 |
A load state detecting apparatus of an induction motor having two coils, the apparatus having a drive voltage supplying unit for supplying a drive voltage to the coils in the induction motor, a phase difference detecting unit for detecting a phase difference between the drive voltage supplied across the coils of the induction motor and a current flowing through one of the coils upon application of the drive voltage and for generating a phase difference signal, and a load state detecting unit for comparing the phase difference signal generated by the phase difference detecting unit with a predetermined reference value and generating a signal depending on a load state of the induction motor.
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申请公布号 |
US4853605(A) |
申请公布日期 |
1989.08.01 |
申请号 |
US19880201265 |
申请日期 |
1988.06.02 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
MATSUO, KATSUHARU;AZUMA, YOSHIYUKI |
分类号 |
D06F39/00;G01R25/00;G01R31/34;H02H7/085 |
主分类号 |
D06F39/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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