the micro brushless dc motor brake is usually use fast brake motor itself, there are two simple solution, one is the braking energy, one kind is short braking, braking energy is kinetic energy consumption of the motor on the external braking resistance, short braking is kinetic energy consumption of the motor on the stator winding of the motor. Apparently braking energy to reduce motor heating is more advantageous. But short braking, don't need to make any changes to the hardware, simple is its outstanding advantages, so focus on short braking. ？
when short braking, refers to the brake can make the motor to drive the MOS pipe bridge arm (Or under the bridge arm)All the conduction and the bridge arm (Or on the bridge arm)By the state, three phase stator winding of the motor are all short answer. In the power generation state of motor, be equivalent to the power is short circuit. Because of the winding resistance is small, so can produce a lot of short circuit current, dc brushless motor factory, kinetic energy of the motor is quickly released, so that greatly braking torque motor instantaneous, can achieve rapid braking effect. The higher the motor speed, short circuit current, the greater the dc brushless motor, brake force. But can not exceed more than MOS tube must be considered, thus generally wait for motor speed to use short braking, reduced to a certain degree.
