Protective circuit for a motor
AssigneeAsia Vital Component Co., Ltd.
InventorMeng-Chic Lin
Life of this patent
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Abstract
A protective circuit for a motor comprises a rotational unit; a drive unit and a control unit. The drive unit is connected to the rotational unit to drive the rotational unit in running. The control unit is connected to the drive unit to control output or drive current of the drive unit. The rotational unit and the drive unit do not occur high temperature due to excessive drive current such that damage can be avoided. The control unit is a comparator or an operation amplifier connecting with at least a comparison circuit composed of a capacitor and a plurality of resistors to generate control signal.
Claims17
A protective circuit for a motor, comprising:
- a rotational unit;
- a drive unit, being connected to the rotational unit to drive the rotational unit in running;
- and
- a control unit, being connected to the drive unit to control output or drive current of the drive unit.
Dependencies are inferred from the claim text.