Control system for a linear vibration motor

Details Control system for a linear vibration motor Control system for a linear vibration motor

2005-12-20

2005-12-20

Lam, Thanh (Department: 2834)

Electricity: motive power systems

Reciprocating or oscillating motor

Energizing winding circuit control

C318S126000, C417S417000

Reexamination Certificate

active

06977474

ABSTRACT:
A motor driving apparatus for driving a linear vibration motor includes an order output determining unit for determining a motor output which is required of the linear vibration motor, and a driving frequency determining unit for determining a driving frequency of the linear vibration motor based on the determined motor output. An amplitude-fixed AC voltage having a frequency which is equal to the determined driving frequency is applied to the linear vibration motor, whereby the output of the linear vibration motor can be controlled without changing the amplitude value of the driving voltage which is applied to the linear vibration motor.

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