Backup battery cut-in and floating charge control device

Abstract

The invention provides a backup battery cut-in and floating control device which is installed on a mooring unmanned aerial vehicle, and the control device comprises a backup battery box and an airborne power supply, a backup battery and a backup battery switching box are installed in the backup battery box, a backup battery switching board is installed in the backup battery switching box, a backupbattery switching circuit and a backup battery floating charge control circuit are arranged on the backup battery switching board. Compared with the prior art, the equipment efficiency can be improved, the power consumption, the heat consumption and the voltage loss are reduced, and the area of the PCB is reduced; the power conversion efficiency can be up to 96%, and the control device has the advantages of being high in integration level, small in size, simple in peripheral circuit, the power consumption can be effectively reduced, and the functions of input overvoltage and undervoltage locking, output overvoltage protection, over-temperature protection, and over-current protection can be realized.

Description

technical field [0001] The invention relates to the power supply technology of a tethered unmanned aerial vehicle, in particular to a backup battery cut-in and floating charge control device for a tethered unmanned aerial vehicle. Background technique [0002] The ground terminal power supply of the tethered UAV supplies power to the tethered UAV system through the tethered cable, so that the UAV can hover in the air for a long time to complete the aerial work. When the power supply of the ground terminal of the tethered UAV system is abnormal, the design of parallel power supply and battery can realize redundancy, and the system can immediately switch to the backup battery power supply to ensure the safe flight of the tethered UAV. [0003] The traditional redundant power supply system is usually implemented by the design of isolation diodes and separate devices. The circuit design is more complicated, and because the forward voltage drop of the diode is relatively large, t...

AI Technical Summary

Problems solved by technology

[0003] The traditional redundant power supply system is usually implemented by the design of isolation diodes and separate devices. The circuit design is more complicated, and because the forward voltage drop of the diode is relatively large, the power consumption of the equipment becomes the main problem under the condition of large load current.

Therefore, the traditional redundant power supply system has problems such as large power consumption, large voltage loss, complex circuit, serious heat generation, and large footprint.

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