Battery charging reverse-connection protecting circuit

• Main Authors: WANG YIJUN, ZHUO WEIBO, RAN ZHILIN, HUANG JIE, XU NAIJUN, WANG ZHEFU, ZHANG ZHIJIAN, YAO XU, ZHAN XINGXING, BAO JIANQIANG, HE JIANFEN
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2014
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model discloses a battery charging reverse-connection protecting circuit. In the circuit, one end of a first resistor is connected with one end of a fuse; the other end of the first resistor and one end of a second resistor are connected with the source electrode of a first field-effect transistor; the other end of the second resistor and the grid electrode of the first field-effect transistor are connected with the drain electrode of a third field-effect transistor; the drain electrode of the first field-effect transistor, the grid electrode of the third field-effect transistor, one end of a third resistor, and the drain electrode of a second field-effect transistor are connected with the grid electrode of a fourth field-effect transistor; the source electrode of the third field-effect transistor, the other end of the third resistor, the source electrode of the second field-effect transistor, and one end of a fourth resistor are connected with the source electrode of the fourth field-effect trans