Automatic power adjustment system for introductory use of a vibr

Details Automatic power adjustment system for introductory use of a vibr Automatic power adjustment system for introductory use of a vibr

1999-08-06

2000-10-31

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

318114, 318126, H02J 714, H02P 706

Patent

active

061408026

ABSTRACT:
Driving power for a vibrating device is provided at less than full level when the device is initially used. Power is gradually increased in successive steps after a selected number of uses in each step until full power is achieved. Also, a battery-energized driving signal for a vibrating device has a selected characteristic, such as duty cycle, which is set initially at less than an optimum value, when the battery is at full strength. As the battery discharges, the selected characteristic is adjusted toward optimum so as to compensate for reduction in the battery voltage and ensure full power output.

REFERENCES:
patent: 5099180 (1992-03-01), Noguchi
patent: 5767634 (1998-06-01), Taylor et al.
patent: 5994855 (1999-10-01), Lundell et al.

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