Charge and discharge equalization circuit for series battery based on inductance energy storage

• Main Authors: YANG HUIZHOU, ZHAO XIANXIAN, ZHU HONGBO, KANG LONGYUN
• Format: Patent
• Language: Chinese; English
• Published: 10.04.2013
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model discloses a charge and discharge equalization circuit for a series battery based on inductance energy storage and every battery unit module is connected with a set of equalization sub circuit. A positive end of the series battery is connected with a VCC, and a negative end of the series battery is connected with GND. The series battery is divided into a front portion and a rear portion by a connection point N. The number of the battery unit module in the front portion is more than the number of the battery unit module in the rear portion at most by one. The battery unit module in the front portion is provided with odd batteries. The battery unit module in the rear portion is provided with even batteries. The equalization sub circuits connected with the odd batteries are considered as odd equalization sub circuits and the equalization sub circuits connected with the even batteries are considered as even equalizer sub circuits. A battery management system transmits equalization instructions to