Charging and discharging control circuit with 0V battery charging function

The invention provides a charging and discharging control circuit with a 0V battery charging function, which comprises a decoder, a first driver, a second driver, a third driver, a first phase inverter, a second phase inverter, a third phase inverter and a control circuit, wherein the control circuit comprises a first level conversion circuit, a second level conversion circuit, a charging and discharging main control tube, a first CMOS switch and a second CMOS switch. By dynamically controlling the potential switching of the substrate and the grid electrode, the charging and discharging control function is realized, the area occupied by the MOS tube is obviously reduced on the premise of keeping small on-resistance, and the manufacturing cost is obviously reduced. 本发明提供了一种具有0V电池充电功能的充放电控制电路，包括译码器、第一驱动器、第二驱动器、第三驱动器、第一反相器、第二反相器、第三反相器和控制电路，控制电路包括第一电平转换电路、第二电平转换电路、充放电主控制管、第一CMOS开关和第二CMOS开关。本发明通过动态地控制衬底和栅极的电位切换，实现充放电控制的功能，在保持小导通电阻的前提下，显著减小MOS管所占的面积，显著减小制造成本。