System and method for charging unmanned aerial vehicle

The present invention relates to a charging system (100) for an unmanned aerial vehicle (UAV) (101): comprising an on board system (102) and an on ground system (103); wherein the on board system (102) comprises the UAV (101) having a power source (104), a polarity modulator circuit (105) and at least two skids (106) mounted with a contact pin (107); characterized in that: the polarity modulator circuit (105) comprises a plurality of diode bridge rectifier (108) to modulate the polarity signal for suitable charging; each of the diode bridge rectifier (108) having two input terminals (109) and two output terminals (110); wherein each of the input terminal connected to each of the contact pin (107); the two output terminals (110) connected to the main terminal of the power source (104); the on ground system (103) comprises a charging platform (111) having a plurality of square plates (112) connected to a power supply (113); wherein each of the neighbouring square plate (112) comprises opposite polarity for allowing the contact pins (107) to contact with different polarities.

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