Power supply device

Details Power supply device Power supply device

1993-02-22

1994-06-21

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 2, H02J 700

Patent

active

053231007

ABSTRACT:
A power supply device including a switching regulator, to supply electric power from a battery to a device to be operated, such as a motor. A first switch is provided between the battery and the switching regulator. A second switch is provided between the switching regulator and the device to be operated. A voltage sensing circuit is provided for sensing an output voltage of the battery. When the battery voltage is higher than a predetermined value, the first and second switches are switched so that the battery voltage is applied on the motor through the switching regulator. When the battery voltage is lower than a predetermined value, the first and second switches are switched, so that the battery voltage is applied on the motor without the switching regulator.

REFERENCES:
patent: 3921197 (1975-11-01), Horvath
patent: 4025935 (1977-05-01), Wagensonner et al.
patent: 4451743 (1984-05-01), Suzuki et al.
patent: 4553196 (1985-11-01), Tokuyama et al.
patent: 4698578 (1987-10-01), Mullersman et al.
patent: 4920307 (1990-04-01), Iketani
patent: 5204608 (1993-04-01), Koenck

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