Low supply voltage shutter driver

Details Low supply voltage shutter driver Low supply voltage shutter driver

1995-02-21

1997-01-14

Blankenship, Howard B.

Photography

Camera detail

Shutter

G03B 908

Patent

active

055945201

ABSTRACT:
A mechanical camera shutter requiring voltage in the range of 30 to 60 volts is made to operate from a power supply which provides voltage such lower than is necessary for shutter operation by the inclusion of a capacitor which is charged to 15 volts. The capacitor is operated to add to the insufficient voltage of a power source to provide the requisite high voltage during a critical part of a cycle of operation of the shutter. The shutter driver circuit follows results from the recognition that the shutter requires the high voltage only during the short opening phase of the shutter cycle and is not required during the later holding phase when only a low holding voltage is required. The capacitor is recharged during the holding phase and provides the necessary increased voltage for the next shutter operation.

Affiliated with

Also associated with

Rating

Low supply voltage shutter driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low supply voltage shutter driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low supply voltage shutter driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1392196