| 摘要 |
<p>PURPOSE:To simplify the configuration of a motor driving circuit by composing the DC motor driving circuit of only one switch and one rectifier in addition to a braking resistor. CONSTITUTION:A switch K is opened at the power driving time, a motor is operated in a circuit of a DC power source terminal S(+) with current controlling function a rectifier D the armature A of a DC motor the field coil F of the motor the DC power source terminal S(-). The switch K is closed at the braking time, the field current is controlled in the circuit of S(+) K F S(-), the current induced in the armature A is flowed through the resistor R in the circuit of A R K A to be consumed, thereby regeneratively braking the motor. In this case, the field current is controlled to freely control the braking force.</p> |
