Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2007-02-27
2007-02-27
Masih, Karen (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S806000, C318S811000, C318S801000
Reexamination Certificate
active
10538068
ABSTRACT:
A control device receives a power supply current from a current sensor and a reactor current from a current sensor and detects a maximum value and a minimum value from the reactor current and from the detected maximum and minimum values and the power supply current determines whether the reactor current traverses the zero point, and if so the control device generates and outputs a signal to an up converter which responds to the signal by stopping switching to perform an up or down converting operation.
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Kajiwara Shigeto
Matsumoto Tadaichi
Nakayama Hiroshi
Saitou Tomohiro
Masih Karen
Oliff & Berridg,e PLC
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