发明名称 MOTOR CONTROLLER USING ENCODER
摘要 PROBLEM TO BE SOLVED: To provide a motor controller accurately controlling the place of an object to be moved so as not to count improper pulses output from an encoder detecting motor revolution when the moving range of the article to be moved driven by a motor is determined by a mechanical place control section. SOLUTION: In an AF camera, in which focusing is conducted by moving an internal body 12, an infinite-end switch 31 and a close-up switch 32 changed from off to on by the abutting of the internal body 12 are fitted at each place at one end and the other end of the moving range of the internal body 12. A CPU 21, in which a focusing mode is obtained in response to the off signals of the switches 31, 32, a motor is controlled according to the count of the pulse signal S1 of a photo-interrupter 30, a non-focusing mode is acquired in response to the on signals of these switches 31, 32, and the motor is controlled by counting the pulse signal S1, is mounted.
申请公布号 JPH09266687(A) 申请公布日期 1997.10.07
申请号 JP19960097350 申请日期 1996.03.28
申请人 KYOCERA CORP 发明人 TAMIZU SHINYA;ISHIKAWA TADAAKI;OKUYA TAKESHI;YASUHARA SHIN
分类号 H02P7/06 主分类号 H02P7/06
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