Electricity: motive power systems – Switched reluctance motor commutation control
Reexamination Certificate
2007-02-27
2009-08-04
Ip, Paul (Department: 2837)
Electricity: motive power systems
Switched reluctance motor commutation control
C318S434000, C318S434000, C318S801000
Reexamination Certificate
active
07570000
ABSTRACT:
In a control drive circuit for an electric power tool, a bridge-structured motor, which has a bridge structure and includes switching elements and a motor body, is connected to a power supply unit without any mechanical contacts, and an electric power is supplied to a control circuit for controlling the switching elements by turning on a trigger switch. Further, a circuit switch is provided at power supply sides of drive circuits for driving the switching elements, the circuit switch being controlled by the control circuit to interrupt supply of the electric power to the drive circuits.
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Kawai Akira
Miyazaki Hiroshi
Bacon & Thomas PLLC
Ip Paul
Matsushita Electric & Works Ltd.
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