000 02635nam a2200241 a 4500
001 vtls000038215
003 KUKTEM
005 20251114204413.0
008 090619t2008 my a f m 000 0 eng d
020 _aTHE0006783(Local)
039 9 _a201905291101
_bamirul
_c201107132229
_dVLOAD
_c200908141633
_dVLOAD
_c200908141607
_dVLOAD
_y200906190918
_zida84
040 _aUMP
090 _aTK2943 .H39 2008 rs Bc.
100 0 _aHazer Mohamad Sayuti
245 1 0 _aTemperature controlled NiCd battery charger /
_cHazer Bin Mohamad Sayuti
246 3 _aTemperature controlled NiCd battery charger
_h[electronic resource]
260 _aKuantan, Pahang :
_bUMP,
_c2008
300 _a65 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 computer disc
502 _aProject paper (Bachelor of Electrical Engineering (Power system)) -- Universiti Malaysia Pahang - 2008
520 3 _aNowadays electronic gadgets are widely use due to the growth of new technology. Most electronic gadgets use dry cell as their main energy source; this is due to its small size, efficiencies and recharge ability. Recharge the battery can save cost and reduce the thrown of old battery which can effect the environment. Electrochemical reaction in battery is affected from the temperature. Connecting a device creates a current and the electrons flow through the device to the positive side. At the same time, an electrochemical reaction takes place inside the batteries to replenish the electrons. The effect is a chemical process that creates electrical energy. Once the battery nears a full charge, excess charge current becomes heat. The heat begins to accumulate in the mass of the battery side. As the heat accumulates, temperature of the battery begins to rise. Current through the battery begins to double for every degree Celsius, thus more power is dissipated in the battery which means more heat is generated, as a result more current flows which produce more heat. The heat increase the resistance of the battery, thus the voltage loss occurs and the charging became less efficiency as a result the optimum charging can’t be achieved. To overcome this problem, the cooling fan is added to maintain the battery temperature. The sensor is function to measure the battery’s temperature and driver circuit driving the cooling fan if the battery’s temperature reaches the set value (31 ºC).
650 0 _aBattery chargers
999 _aVIRTUA40
_c1436
_d1442
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*9992