Anti-backflow and back electromotive force absorption circuit

• Main Authors: GAO LEI, LEI CHAO, WANG SHIYONG, CHENG QIAN, CHEN XING, ZHANG YUNLONG, LAI HONGYU, SUN YUANHANG, XIE YONG, YANG SU
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2024
• 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 invention discloses an anti-backflow and back electromotive force absorption circuit, which solves the problem of backflow from an input power supply to a lithium battery through a series connection mode of an MOS (Metal Oxide Semiconductor) tube and a diode under the control of the input power supply, and prolongs the service life of the lithium battery. A standby lithium battery (storage unit) is used for absorbing back electromotive force, the back electromotive force is converted into chemical energy to be stored, green energy is achieved, and meanwhile the influence on an input power source is reduced; and an adjustable sampling voltage and isolation driving control mode is adopted, so that the adaptability and reliability of back electromotive force absorption are improved. The problem that the input power supply of the mooring unmanned aerial vehicle flows backwards to the standby lithium battery is solved, and the service life of the lithium battery is prolonged. 本发明公开了一种防倒灌及反电动势吸收电路，在输入电源的控制下由MOS