Motor circuit with power-off braking function

摘要

A motor circuit with power-off braking function includes a driving unit, a coil unit, and a braking unit. The driving unit includes a plurality of switch arms connected in parallel, with each switch arm having a series contact. The coil unit includes a plurality of coils and a central contact. Each coil includes an end connected to the series contact of one of the switch arms. The other end of each coil is connected to the central contact. The braking unit includes a brake loop switch coupled between the central contact of the coil unit and an end of the switch arms. When power is cut off, a plurality of brake loops is formed to share the transient current during braking.

主权项

1. A motor circuit with power-off braking function, with the motor circuit comprising:
a driving unit including a plurality of switch arms connected in parallel, with each of the plurality of switch arms having a series contact, the driving unit having a high voltage end and a low voltage end, wherein the plurality of switch arms are connected in parallel between the high voltage end and the low voltage end; a coil unit including a plurality of coils and a central contact, with each of the plurality of coils including an end connected to the series contact of one of the plurality of switch arms, with each of the plurality of coils including another end connected to the central contact; and a braking unit including a brake loop switch coupled between the central contact of the coil unit and an end of the plurality of switch arms, the brake loop switch including a detecting portion and an actuating portion, the detecting portion being coupled to the high voltage end and the actuating portion coupled between the central contact of the coil unit and one of the high voltage end or the low voltage end of the plurality of switch arms, wherein the high voltage end or the low voltage end is coupled to the brake loop switch, and wherein the actuating portion is in either an on state or an off state.