Power supply unit of camera

Details Power supply unit of camera Power supply unit of camera

1997-11-26

1998-11-03

Perkey, W. B.

Photography

With power supply detail

Power distribution management

396106, 396129, G03B 726

Patent

active

058323244

ABSTRACT:
The present invention provides a power supply unit of a camera which efficiently drives a heavy-load system even when a power supply voltage is low and thus drives a heavy-load circuit in a short time in the photographing sequence of the camera without any trouble. The power supply unit includes a charging section for charging a capacitor with a boosted DC power supply voltage, a switching section which receives the output voltage of the charging section and the DC power supply voltage and selectively applies one of these voltages to the heavy-load circuit, and a control section for controlling operations of the switching section and the charging section. The control section controls the switching section such that the output voltage of the charging section is output in the early stage of a time period during which the power supply voltage is being applied to the heavy-load circuit and then the DC power supply voltage is output. The control section also controls the charging section such that the DC power supply voltage is boosted while the DC power supply voltage is being applied to a load.

REFERENCES:
patent: 5327070 (1994-07-01), Seki et al.
patent: 5365305 (1994-11-01), Seki et al.
patent: 5727241 (1998-03-01), Yamano et al.
patent: 5737651 (1998-04-01), Hibino et al.
English language Abstract of Jap. 2-232639; Sep. 1990.

Affiliated with

Also associated with

Rating

Power supply unit of camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power supply unit of camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply unit of camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-702809