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20kW Tethered UAV Power Supply
20kW Tethered UAV Power Supply

Ground power (battery or generator) continuously supplies electricity to the UAV via cables, overcoming traditional battery endurance limitations. This enables single-mission durations exceeding 10 hours and supports battery swapping for 24-hour uninterrupted flight. The cables simultaneously transmit both power and signals, eliminating wireless interference while enhancing communication security and stability.

Technical Specifications

Input Characteristics
ProjectTechnical RequirementsUnitRemarks
Rated Input Voltage (Power Port)1320VdcThe optimal port voltage for the power supply is 1320V. It is recommended to operate at this voltage point (port voltage = ground power supply output voltage - input line loop resistance × input current). For cable lengths of 200-300 meters (loop resistance 7-11 ohms), the recommended ground power supply output voltage is 1400-1440V.
DC Input Voltage Range1200—1500
Maximum Input Current< 22A
Output Characteristics
Rated Output Voltage50.2Vdc
Output Voltage Range49.4—50.4VdcMust not exceed 50.4V.
Output Working Current Range0—458AInput voltage between 1440-1500V causes the output current to linearly derate from 458A. At 1500V, the maximum output load is 100A.
Output Rated Current Range0—400AFull temperature range, continuous operating current
Scope. Test temperature rise load.
Rated Output Power20KWPeak Power 25 kW(30S)
Overall efficiency≥96%Rated Input, Rated Load
Output ripple and noise≤500mVp-pRoom temperature, rated input voltage, output load exceeding 20%, oscilloscope bandwidth 20MHz, probe connected in parallel with 10μF + 104 capacitor
Soft Start Time6SRated Input Voltage: Power On to Output


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