http://www.national.com/an/AN/AN-946.pdfpwede po yan gamitin sa dalawang series na 6v NiMH battery na available sa e-gizmo?
usually sa charging ng NiMh, meron yung Delta V, Delta T measurements meaning minomonitor yung change in voltage and change in temperature over time. May characteristic alam ko yung Nimh na habang di pa sya fully charged, pataas ng pataas ang voltage nya habang nag chinacharge mo. Then there will come a point na mag di-dip yung voltage. Pag pababa na yung voltage, yan yung point na fully charged na sya. Then may protection ka na monitoring of temparature. Pag sobrang init, cutoff mo na yung charging.May mga ICs for battery charging. Usually naka program na yung DeltaV, DeltaT monitoring dun. Sometime may fast charging pa so malakas ang current sa simula then before reaching their peak or after a certain threshold voltage, mag ti-trickle charge na sya to top off the remaining part hanggang maging fully charged sya.Gamit ko yung maxim 713
thanks for the reply. meron po kayo sample schematic? http://www.e-gizmo.com/pmaster.php?dpage=PRODUCT/ROBOT/batt.htmdalawang 6V series sana balak kong gamitin to make a single 12 volts, kaya po ba?
the charger i use for my nicads and NiMH is TLP expro, very automatic, peak charger sya, adjustable amperes, auto volt select, but the minimum batteries in series is 4 pcs. and the maximum is 8 pcs..so 4.8Volts to 9.6 volts lang..the newer TLP EXpro charger kaya up to 15volts ...medyo mahal lang 4.5k pesos na..i read one electronic enthusiast from india, he made a charger where he connects it to his pc and is also automatic..will try to dig my downloaded files for it..
^ most likely USB power lang.