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US 2016/0079889 A1Published application
Motor driver and a method of operating thereof
AssigneeArm Limited
InventorDavid PIETROMONACO
Life of this patent
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AssigneeArm Limited
InventorDavid PIETROMONACO
Estimating the term…
A driver circuit for driving an electrical motor coil is provided which comprises combined switched inductance boost voltage converter circuitry and switched inductance buck voltage converter circuitry. An input node of the driver circuit is provided to be coupled with the electrical motor coil, which provides the inductive element of both the boost and buck circuitry. Further the boost and buck circuitry share a storage capacitor, which provides the capacitive element of each circuitry, and a voltage developed across the storage capacitor by the boost circuitry forms an input of the switched inductance buck voltage converter circuitry. Bidirectional driving of the electrical motor coil is thus provided from a driver circuit which only need be supplied with a single unidirectional supply and the current drawn from that supply is significantly reduced because of the manner in which the boost and buck circuitry operate synergistically to recycle electrical power which is moved back and forth between the electrical motor coil and the storage capacitor. A corresponding driver board, electrical motor driver apparatus, method of operating a driver circuit and apparatus are also provided.
A driver circuit for driving an electrical motor coil comprising:
A driver board for driving at least two electrical motor coils of a switched reluctance electrical motor comprising:
A method of operating a driver circuit to drive an electrical motor coil comprising the steps of:
An apparatus comprising:
Dependencies are inferred from the claim text.