| 摘要 |
PCT No. PCT/US93/06492 Sec. 371 Date Jan. 11, 1996 Sec. 102(e) Date Jan. 11, 1996 PCT Filed Jul. 9, 1993 PCT Pub. No. WO95/02276 PCT Pub. Date Jan. 19, 1995A motor braking circuit arrangement, for use with a series/universal motor and a power supply for supplying power to the motor, including two separately actuable switches electrically interconnecting a separate braking winding with the motor to effect braking when either of the two switches are deactuated. The circuit arrangement includes a field winding wound about the motor stator and electrically connected in series with the motor armature winding. The separate brake winding is wound about the stator. The two switches are series-connected, and each switch is capable of assuming a first position associated with normal motor operation and a second position associated with motor braking wherein the separate brake winding is electrically connected in parallel with the motor armature. The switches may be single-pole, double-pole or combinations thereof. The separate brake winding may be series-connected with a resistor to limit the current flow through the brake winding, thereby limiting the rate of motor braking.
|
