| 摘要 |
A control circuit for controlling a switch reluctance motor including at least one phase, the control comprising a power stage including means for variably supplying a DC voltage, and a winding stage including for each phase a phase winding having one end and another end. The winding stage further includes a high voltage bus connected to the power stage, and a low voltage bus connected to the power stage. The winding stage further includes, for each phase, a first current path comprising an upper commutating switch connected to the high voltage bus, the respective phase winding one end connected to the upper switch, and a lower commutating switch connected to the respective phase winding other end and to the low voltage bus. The winding stage also includes, for each phase, a second current path comprising a first unidirectional current flow device connected to the low voltage bus and to between the upper switch and the respective phase winding one end, and a second unidirectional current flow device connected to between the respective phase winding other end and the lower switch and connected to the high voltage bus.
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