DIGITAL CAMERA PSU AND BATTERIES CHARGER Circuit
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.
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