DRIVING SYSTEM FOR ELEVATOR

A driving system (100, 200, 300, 400) for an elevator includes a motor (MTR), a power source (PS), a battery device (110, 310), a conversion circuit (120, 320), a power path circuit (130, 330, 430) and a controller (140, 340). When the elevator is moving, the controller (140, 340) controls the power path circuit (130, 330, 430) to generate a power delivering path (L1, L4) between the conversion circuit (120, 320) and the motor (MTR), and controls the conversion circuit (120, 320) to convert a battery power (PB) into a driving power (PDR). When the elevator is at rest, the controller (140, 340) controls the power path circuit (130, 330, 430) to generate a charging path (L2, L3) between the conversion circuit (120, 320) and the power source (PS), and controls the conversion circuit (120, 320) to convert a source power (PPR) into the battery power (PB).