发明授权
US4511797A Circuit arrangement for positioning the printing mechanisms in printers
employing a d.c. motor
失效
用于将打印机构定位在使用直流电的打印机中的电路布置 发动机
- 专利标题： Circuit arrangement for positioning the printing mechanisms in printers employing a d.c. motor
- 专利标题（中）： 用于将打印机构定位在使用直流电的打印机中的电路布置 发动机
-
申请号： US462402申请日： 1983-01-31
-
公开(公告)号： US4511797A公开(公告)日： 1985-04-16
- 发明人: Dietmar Pohlig , Ernst Goepel
- 申请人： Dietmar Pohlig , Ernst Goepel
- 申请人地址： DEX Berlin & Munich
- 专利权人： Siemens Aktiengesellschaft
- 当前专利权人： Siemens Aktiengesellschaft
- 当前专利权人地址： DEX Berlin & Munich
- 优先权： DEX3214554 19820420
- 主分类号： B41J19/20
- IPC分类号： B41J19/20 ; G05B19/21 ; G01D5/34
摘要：
A d.c. motor positions printing mechanisms. A circuit arrangement is provided in which a scanner disc, having peripheral slots, is arranged on the shaft of the motor and the slots are scanned by a scanner and counted in the positive direction and in the negative direction by a counter so that the position of the printing mechanism is determined. When the d.c. motor is decelerated and a generator voltage arises, the direction is determined by a rotation direction discriminator which evaluates the generator voltage and the zero transition thereof in the event of a change in the rotation direction of the d.c. motor. To control the direction of counting of the counter.
公开/授权文献
- US5035226A Engine control system 公开/授权日：1991-07-30