DIGITAL CAMERA PSU AND BATTERIES CHARGER
This ambit was created for agenda cameras. It's accepted the agenda cameras accept ample
ability consumption. For archetype my camera Minolta E223 requires about 800 mA. In
convenance a mains ability accumulation or aerial accommodation NiMH accumulators
(batteries) can amuse this demand.
This ambit consists of two parts, charger and adapter. The transformer, rectifier arch
and absorber condensator are common. Adapter is absolutely artlessly its capital
allotment is an adjustable voltage regulator LM 317 according to accepted setting.
Output is a acceptable for camera jack plug. Voltage can be adapted in ambit 2-9 V.
In the charger ambit a 7805 anchored voltage regulator works as accepted architect
assured connected accepted during charging. This charging accepted can be adapted with
the 100 /1W potentiometer in ambit about 50-300 mA adumbrated by a baby accepted
barometer instrument. From one to four batteries can be answerable simultaneously. The
about-face charge be set according to cardinal of batteries, and charging accepted of
batteries accustomed by architect charge be adjusted. This ambit doesn't admeasurement
charging time and charging action of batteries. Manufacturers accord charging time,
usually 14-16 h. I apparent this botheration with a simply, bargain automated mains
timer. I anticipate its accurateness is sufficient.
Source skema-amplifier.blogspot.com
