| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving circuit capable of enhancing the motor efficiency of an SR motor.SOLUTION: An SR motor driving circuit includes: plus-side switching elements T1 to T3 and minus-side switching elements T4 to T6 of at least three phases including an U-phase, V-phase, and W-phase disposed between a plus-line and a minus line of a battery 3; back-flow block diodes D2, D4, and D6, each connected between an output terminal of the plus side switching element and the minus line of each phase; and a coil of a phase corresponding to a stator coil of the SR motor, the coil connected between output terminals of the plus-side switching elements T1 to T3 and output terminals of corresponding phase minus-side switching elements T4 to T6; and back-flow block diodes D1, D3, and D5, each connected between an output terminal of the minus side switching elements T4 to T6 and the next phase plus-side switching elements T1 to T3. |
