| 摘要 |
PROBLEM TO BE SOLVED: To suppress torque ripple of a five-phase stepping motor. SOLUTION: Coils 1, 2, 3, 4 and 5 of phases A, B, C, D and E are connected in a ring and transistors TAP, TBP, TCP, TDP and TEP are inserted between respective joints and the positive pole + of a power supply 7 while transistors TAN, TBN, TCN, TDN and TEN are inserted between respective joints and the negative pole -of the power supply 7. A parallel circuit of three phase coils is formed and a series circuit of two phase coils is connected in parallel therewith. Combination of phase coils in the series circuit is altered and the current flowing through one of two series connected phase coils is subjected to duty control. |
