Electric motor controller for a domestic appliance
AssigneeInvensys Appliance Controls Company
InventorsJean Marc Rosoli, Francois Xardel
Life of this patent
Estimating the term…
Abstract
The invention relates to a three-phase asynchronous electric motor for domestic appliances, comprising power elements, such as triacs or relays, for charge control. The power elements other than the relays are controlled by at least one microcontroller with the aid of an optical insulation means, ensuring electronic programming and also control of the motor with the aid of a command. The microcontroller or microcontrollers are references to a zero potential of a recovery and filter block feeding the motor. The controller can be applied to a washing machine in order to control the electric motor which rotationally drives the drum.
Claims11
A controller for three-phase asynchronous electric motor or for chopper for universal motor, for domestic electrical appliances, comprising power units including relays, for controlling loads, wherein:
- the power units other than the relays are controlled via an insulation means, by at least one microcontroller acting as an electronic programmer, and,
- the at least one microcontroller performs a motor control function via a control, and
- said at least one microcontroller is referenced to the “zero” potential of a rectification and filtering block supplying power to the motor.
Dependencies are inferred from the claim text.