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US 2013/0076292 A1Published application
Sr motor control apparatus
AssigneeMitsuba Corporation
InventorsHiroaki OKADA, Toshiaki ISOMURA
Life of this patent
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Abstract
An SR motor control apparatus includes: a first half-bridge circuit connected to a neutral node of an SR motor; a second half-bridge circuit connected to a U-phase coil of the SR motor; a third half-bridge circuit connected to a V-phase coil of the SR motor; a fourth half-bridge circuit connected to a W-phase coil of the SR motor; and a switching unit including at least two power modules on which the first to fourth half-bridge circuits are mounted.
Claims8
An SR motor control apparatus, comprising:
- a first half-bridge circuit having an element array including two semiconductor switching elements connected in series at a connecting node, both ends of the element array being connected to a power source, and a neutral node of an SR motor being connected to the connecting node;
- a second half-bridge circuit having an element array including two semiconductor switching elements connected in series at a connecting node, both ends of the element array being connected to the power source, and a U-phase coil of the SR motor being connected to the connecting node;
- a third half-bridge circuit having an element array including two semiconductor switching elements connected in series at a connecting node, both ends of the element array being connected to the power source, and a V-phase coil of the SR motor being connected to the connecting node;
- a fourth half-bridge circuit having an element array including two semiconductor switching elements connected in series at a connecting node, both ends of the element array being connected to the power source, and a W-phase coil of the SR motor being connected to the connecting node;
- and
- a switching unit including at least two power modules on which the first to fourth half-bridge circuits are mounted.
3 more elements
Dependencies are inferred from the claim text.