正負脈衝電池充電法，以較大的正脈衝電流對電池充電，加快電池充電時間，並利用負脈衝放電電流去除極板之氣泡，之後設置休息時間，以使充電效應可以均勻化。本文利用單級隔離式昇壓-順向式轉換器對電池做大電流正脈衝快速充電，利用昇壓式整流器將能量傳送至儲能電容上，達到功因修正的目的，並利用雙開關順向式轉換器提供能量給電池，對電池施以大電流脈衝充電。以返馳式轉換器作為電池負脈衝放電，並把放電能量回送到昇壓式轉換器的儲能電容中，提昇系統效能，減少能量浪費。本文電路可實現具能量回送與功因修正之正負脈衝電池充電器，達到高功因快速充電並兼顧電池壽命。最後利用電腦結合視窗軟體以監測電池電壓、充放電時間及電池溫度，藉此瞭解正負脈衝電池快速充電之影響。

Positive/Negative pulse battery charger uses a high and positive pulse current to charge battery quickly and a negative pulse current to remove the bubbles of battery plate. After that, it has a rest time to make charging effect uniformly. This thesis uses an isolated boost-forward converter to charge battery quickly with high current positive pulse and also achieve high power factor of the charging system. By using the flyback converter, the energy released from the battery to the primary capacitor in the negative pulse discharging mode. Thus, the efficiency can be increased. In addition, the transformer of the flyback converter can be used as the filter inductor of the forward converter, and thus to reduce the size and cost of the system. This monitor system is used to record the data of battery voltage, battery temperature, and time period of charging and discharging, which can be used to analyze the performance of positive/negative pulse charging system.

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