Onboard Power Supply
TP-P4 is a regulated 4kW 50V airborne power module for tethered UAVs, with 680-800VDC input, 80A rated current, IP54, 1kg weight and compact installation.
Contact Stella directly to discuss aircraft compatibility, payload power, tether length, mission equipment, and quotation requirements.
Products
TethPower TP-P4 is a regulated 4kW airborne power module designed for tethered UAV systems using a high-voltage 680-800VDC transmission architecture. It delivers a stable 50V-class output for aircraft and payload systems that require controlled voltage during long-duration operation.
At approximately 1kg, TP-P4 combines regulated output, forced-air cooling and compact packaging for medium-power industrial UAV applications. It is a practical option where voltage stability is more important than the lower-voltage fixed-ratio architecture used by lighter modules.
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| Brand | TethPower | Model | TP-P4 |
|---|---|---|---|
| Input voltage range | 680-800VDC | Rated output voltage | 50VDC nominal (47-50.5VDC range) |
| Rated output current | 80A rated, 88A maximum | Rated power | 4kW |
| Peak output power | Not specified in current manual | Dimensions | 187 × 95 × 70mm ±1mm |
| Weight | 1,000g | Protection rating | IP54 |
| Operating temperature | -40°C to +50°C | Efficiency | ≥97% |
| Voltage regulation accuracy | ≤±1% | Storage temperature | −40°C to +80°C |
| Maximum altitude | 2,000 m | Cooling | Integrated forced-air cooling |
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TP-P4 should be selected as part of the complete tethered UAV power chain, not from the kW rating alone. TethPower reviews the aircraft battery/DC-bus voltage, continuous and peak demand, payload, tether length, cable voltage drop, operating altitude, temperature and ground-power architecture before confirming a matched configuration.
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Answers to common compatibility, configuration, quotation, and delivery questions.
A regulated module maintains a controlled low-voltage output while the tether-side input varies within the approved range. This is useful when the aircraft requires tighter voltage stability.
No. Battery voltage range, actual bus limits, continuous and peak power, payload and tether length must all be checked before integration.
The current manual specifies 4kW rated output and does not state a separate peak-power value. TethPower does not publish an inferred peak rating without source confirmation.
TP-P4 uses a higher tether-input voltage and regulated output. TP-P4F is lighter and uses a lower-voltage open-loop architecture. Selection depends on the ground station, tether length, aircraft voltage and payload.
Project-specific connector, mounting and system-integration requirements can be reviewed by TethPower before quotation.
Products
TP-P5 is a 5kW 24V airborne power module for high-current tethered UAV systems, with 680-800VDC input, 210A rated current, 2.2kg weight and IP54 protection.
TP-P4F is a lightweight 50V-class airborne power module for tethered UAVs with 3.5kW rated, 4.3kW peak output, 360-430VDC input, IP65 and ≤0.8kg weight.
TP-P6 is a 6kW rated / 7kW peak 50V airborne power module with 600-750VDC input, IP65 protection, ≤1.4kg weight and high-power tethered UAV integration.
