The Characteristics of Current and Resistance of A Lead-Acid Battery Recharger using High Frequency Pulse

This paper examines whether the difference exists when the only high frequency pulse is introduced to a leadacid battery charger, and when continuously charged with ordinary charger. Intend to designed to charger when input to AC power, circuit design changing to general trend what charger size is smaller and efficiency of charger to the max, PFC, Fly-back converter, switching technology of passive element make the best use of technology. Lead-acid battery inner part are checked to find if it is in normal state or dangerous state through SOC method. To make a decision state of battery that in the PbO_2, in the over charging, in the over discharger as from protected to battery Lead sulfate is generated in the lead-acid battery if it undergoes repeated charging and discharging. Increase in the quantity of lead sulfate will reduce chemical reaction within the lead-acid battery, along with an increase in internal resistance to lower the voltage of the battery, thereby resulting in degradation of the lifespan and performance of the battery. The current of the lead-acid battery recharger manufactured will be measured for comparison prior to and after the input of high frequency pulse. High frequency pulses will be generated with a frequency of approximately 70 kHz and inputted into the lead-acid battery, which will then be discharged. Then the change in current and recharging times will be compared with those of ordinary rechargers to present the effects of high frequency pulses on lead-acid batteries.