METHOD FOR CONTROLLING REVOLUTION OF INDUCTIVE MOTOR AND REVOLUTION CONTROLLING SYSTEM AND MASSAGE APPARATUS

摘要

PURPOSE: To provide a method for controlling the revolution of an inductive motor, in which overshoot is not caused when activated, and to provide a revolution controlling system and a massage apparatus which does not make a user feel strange when massage is started. ;CONSTITUTION: This massage apparatus is controlled by CPU 1 including a first memory 1a, a second memory 1b, and a timer 1c, and is provided with a motor controlling circuit 4 controlling the energizing rate of driving electricity by an inductive motor 5. The first memory 1a stores energizing time data according to the objective number of revolutions of the inductive motor 5, and the second memory 1b stores energizing rate data. The timer 1c clocks time after started to energize, and the current energizing rate is switched to a smaller energizing rate when the clocked time corresponds to the objective number of revolutions.;COPYRIGHT: (C)1996,JPO