Electric supply for an electrically powered scooter or bicycle, uses relay switched resistance to dissipate excess energy during regenerative braking in battery powered scooter or bicycle

摘要

The supply circuit has an inverter (5) to excite a permanent magnet brushless drive motor (1) and a control circuit (4) to drive the inverter. The control circuit is activated in response to the measured (12) supply voltage to the motor. A relay (10) and a regeneration resistance (11) are used to stabilize the voltage, with the relay controlled by the control circuit (4).