发明名称 |
COMMUTATION SENSOR COMBINED WITH ENCODING FUNCTION |
摘要 |
PURPOSE:To obtain a circuit which generates an encoding signal from a commutation sensor signal to achieve higher reliability and reduction in cost in a three-phase brushless motor with a commutation sensor. CONSTITUTION:A pulse is generated from a commutation sensor signal with an edge direction judging circuit 11 to be distributed into six. Rotational direction information is obtained with a rotational direction judging circuit 12 with respect to the respective pulses and the pulses are distributed in terms of the direction of rotation with a direction signal output circuit 13. Finally, the results are outputted as encoder pulses from a feedback pulse output circuit 16. Thus, a pulse having the rotational direction information is generated from the commutation sensor signal with the circuit thereby producing an encoder signal. |
申请公布号 |
JPH0580066(A) |
申请公布日期 |
1993.03.30 |
申请号 |
JP19910243084 |
申请日期 |
1991.09.24 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
HASEGAWA TAKEHIKO;ASHIZAKI YUKIHIRO |
分类号 |
G01P13/04;G05D3/12;H02P6/00;H02P6/16;H03M1/30;H03M1/64 |
主分类号 |
G01P13/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|