Product overview
The Kitefly WF-750S50-6K from Nanjing Airfly Electronic Technology Co., Ltd. is an onboard power supply for tethered drones. Its electrical architecture accepts 600-750Vdc, with a rated input of 720Vdc, and provides a rated 50 +/-0.5Vdc output within a 45-50.5Vdc range. Rated output current is 120A, rated power is 6000W, and peak power is 7000W. Ground-side integration requires a Kitefly tethered station delivering at least 6000W at 600-750Vdc, with consultation required for system matching.
The unit incorporates self-contained fan cooling and occupies 248 x 107 x 75 +/-1mm, with weight no greater than 1.4kg. These dimensions and mass define its onboard integration footprint. Continuous 6kW operation is specified from -20C to +40C, with a maximum altitude of 3000m. Its IP65 rating carries a requirement that water must not accumulate on top. Relative humidity is limited to 95%, without condensation at 40C +/-2C. Efficiency reaches at least 96% at 720Vdc input and above 50% load.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer | Nanjing Airfly Electronic Technology Co., Ltd. |
| Brand | Kitefly |
| Model | WF-750S50-6K |
| Product type | Onboard drone power supply |
| Compatible ground stations | Any Kitefly tethered ground station with at least 6000W output at 600-750Vdc; system matching requires consultation.Ground station output at least 6000W at 600-750Vdc; system matching required. |
| Input voltage | 600-750Vdc (rated input: 720Vdc)Rated input: 720Vdc. |
| Output voltage | 50 +/-0.5Vdc (rated; range 45-50.5Vdc)Rated output; range 45-50.5Vdc. |
| Output current | 120A ratedRated output. |
| Rated power | 6000W |
| Peak power | 7000W |
| Efficiency | At least 96% (Vin=720Vdc, greater than 50% load)Vin=720Vdc, greater than 50% load. |
| Voltage regulation accuracy | +/-1% |
| Output ripple and noise | At most 700mVp-p (20MHz bandwidth, rated load)20MHz bandwidth, rated load. |
| IP rating | IP65; no water accumulation on topNo water accumulation on top. |
| Operating temperature | -20C to +40C (continuous 6kW operation)Continuous 6kW operation. |
| Storage temperature | -40C to +80C |
| Relative humidity | At most 95% (no condensation at 40C +/-2C)No condensation at 40C +/-2C. |
| Maximum altitude | 3000m |
| Cooling method | Self-contained fan cooling |
| Dimensions | 248 x 107 x 75 +/-1mm |
| Weight | At most 1.4kg |
| MTBF | At least 100,000 hours |
| Warranty | 1 Year |
