Back to results
US 2018/0294758 A1Published application
Motor driver and a method of operating thereof
AssigneeArm Limited
InventorDavid Victor Pietromonaco
Life of this patent
Estimating the term…
Abstract
An electrical motor comprising multiple inductive coils, and a method for using same, is disclosed. The inductive coils may be configured to conduct current bi-directionally. Terminals of the inductive coils may be coupled to a common node on a power bus coupled to a power supply. Current flowing in a first inductive coil from the power bus may be largely offset by current returned to the power bus from a second inductive coil.
Claims22
An electrical motor comprising:
- motor driver circuitry;
- a power bus comprising a common node;
- a plurality of coils, each coil comprising a first terminal coupled to the motor driver circuitry and a second terminal coupled to the common node;
- and
- a power supply comprising a first terminal coupled to the common node and a second terminal coupled to the motor driver circuitry.
2 more elements
A method comprising:
- coupling a voltage source to a common node of a power bus from a first terminal of a power supply;
- and
- conducting a bi-directional current between first and second terminals of each of a plurality of coils, first terminals of the plurality of coils being coupled to motor driver circuitry and second terminals of the plurality of coils being coupled to the common node.
A controller device comprising:
- a plurality of first terminals, each of the first terminals being adapted to couple to a first terminal of a corresponding one of a plurality of coils;
- one or more second terminals adapted to couple to a power supply;
- and
- motor driver circuitry to control current flowing between the one or more second terminals and each of the first terminals so as to enable coupling of second terminals of the plurality of coils to a common node for operating a motor.
1 more element
Dependencies are inferred from the claim text.