Battery equalization circuit with ramp converter

An electronic battery equalization circuit, comprising:

• a supply source for supplying charging current;
• a plurality of batteries connected in series;
• and
• a transformer coupled to said supply source, said transformer having a primary circuit and at least one secondary circuit being connected to a different pair of batteries of said plurality of batteries.

An electronic battery equalization circuit for equalizing voltages of a plurality of batteries in a battery pack, comprising:

• a current source for supplying a charging current during a first half cycle and a second half cycle;
• a transformer connected to said current source;
• a primary circuit connected to said transformer, said primary circuit comprising a primary winding, an inductor connected in series to the primary winding, a current transformer connected in series to the inductor and a pair of semiconductor devices;
• and
• at least one secondary circuit connected to said transformer comprising a secondary winding being coupled to a battery of the plurality of batteries using a full wave rectifier and a capacitor being connected across the battery of the plurality of batteries,
• wherein the charging current is supplied to lowest voltage batteries in the battery pack during the first half cycle of said current source, and
• wherein the charging current is supplied to lowest voltage batteries in the battery pack during the second half cycle of said current source.