.~.~ With controlled electronic switch for phase reversal
DEFINITION
Classification: 318/756
With controlled electronic switch for phase reversal:
(under subclass 739) Subject matter wherein the means to change direction of the motor includes an on-off electronic device with a control terminal which operates to determine when to permit or stop the transfer of power through the device itself from a power source to the motor or through a relay actuated by the on-off device.
(1) Note. Included in this subclass for example are three phase-reversing circuits with cycloconverters or rectifier inverters.