Cell voltage balancer

• Main Authors: Lin, Pao-Chuan, Tzou, Chung-Shing, Ku, Hsiao-Chih, Liu, Yi-Hwa, Liu, Yung-Hsiang
• Format: Patent
• Language: English
• Published: 12.03.2002

This application incorporates by reference Taiwanese application Serial No. 89211927, Filed Jul. 11, 2000. A cell voltage balancer for balancing the voltage of the first cell and the voltage of the second cell. The cell voltage balancer includes the first input terminal, the second input terminal and the third input terminal. The cell voltage balancer includes a transformer, the first switch and the second switch. The transformer includes a primary winding and a secondary winding. The first switch and the primary winding are serially connected between the first input terminal and the second input terminal. The second switch and the secondary winding are serially connected between the second input terminal and the third input terminal. The first switch and the second switch are switched on and off alternatively. While the first switch is on and the second switch is off, the primary winding stores energy of the first cell in the transformer. On the contrary, the secondary winding recovers energy stored in the transformer into the second cell.