Electric motor control circuit having reduced...

Details Electric motor control circuit having reduced... Electric motor control circuit having reduced...

2006-05-30

2006-05-30

Masih, Karen (Department: 2837)

Electricity: motive power systems

Motor-reversing

Reexamination Certificate

active

07053571

ABSTRACT:
An electric motor control having reduced electromagnetic interference (EMI) emissions includes a motor controller, a switch, and a power converter. The motor controller upon receipt of a control signal causes the switch to toggle between two or more states. In one state the power converter produces a half-wave rectified output (50% power) and in another state produces full-wave rectified output (100% power). Thus, when an electric motor is connected to the output of the power converter, the motor's speed and other operating parameters can be controlled by motor controller by changing the state of the switch.

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