| 摘要 |
<p>PCT No. PCT/JP83/00380 Sec. 371 Date Sep. 28, 1984 Sec. 102(e) Date Sep. 28, 1984 PCT Filed Oct. 26, 1983 PCT Pub. No. WO84/01821 PCT Pub. Date May 10, 1984.A pulse encoder (2) is provided for generating a position code IP corresponding to the rotational position of a rotor of a motor (1), as well as rotation pulses AP, BP each of which is produced whenever the rotor rotates by a predetermined amount. The rotation pulses AP, BP are applied to a counter (32) via quadrupling pulse generating circuit (30). A leading edge/trailing edge sensing circuit (31) is provided for sensing a transition point of the position code, with the counter (32) being preset by an output from the circuit (32). Thus, the position of the rotor is capable of being indicated precisely based on the position code and the value counted by the counter.</p> |
