8KW Ultra-High Voltage Light weight Airborne Power Supply | 800-1000V to 50V HLF8K-D50-1000
HLF8K-D50-1000 8KW Ultra-High Voltage Airborne DC/DC Power Converter
Overview
HLF8K-D50-1000 is a high-power 8KW onboard DC/DC power converter engineered for the most demanding next-generation heavy-duty unmanned aerial vehicles (UAVs) and tethered aerial platforms. It is designed to efficiently convert an ultra-high voltage DC input (800–1000VDC) into a stable, high-power 50VDC output. This capability is critical for minimizing power transmission losses over long distances (especially in tethered systems) and for powering advanced, high-load avionics and payload suites. Built with exceptional efficiency, comprehensive protection, and a ruggedized design, it ensures reliable and sustained performance in the challenging vibration and thermal environments of high-capacity flight operations.
Key Features
Ultra-High Voltage Input Capability:
800–1000VDC input range enables highly efficient power transmission, significantly reducing cable losses and weight for tethered systems or enabling compatibility with next-generation high-voltage UAV battery packs.
Ultra-High Power & Exceptional Efficiency:
Delivers 8KW continuous output with ≥97% conversion efficiency, maximizing system runtime, payload capability, and operational flexibility while minimizing thermal management overhead.
Stable High-Power 50VDC Output:
Provides a stable 50VDC output at 160A, capable of supporting multiple high-demand onboard systems, powerful sensors, electric actuators, and communication payloads simultaneously.
Complete Protection Suite:
Input under/over voltage protection
Output under/over voltage protection
Output overcurrent protection
Temperature protection with intelligent power reduction
Enhanced shock and vibration resistance
CAN Communication: Enables real-time system monitoring, diagnostics, parameter configuration, and seamless integration into sophisticated vehicle control and health management networks.
Rugged & Compact Construction: Engineered to withstand the extreme conditions of heavy-duty flight, featuring advanced shock-absorbing mounts and optimized thermal management within a compact footprint.
Applications
Next-Gen Heavy-Duty & Tethered Drones/UAVs:
Ideal for long-endurance surveillance, heavy-payload inspection, long-range communication relay, and other missions where ultra-high voltage input minimizes ground cable losses or interfaces with high-voltage onboard systems.
High-Altitude & Long-Endurance (HALE) Platforms:
Provides efficient power conversion for systems utilizing high-voltage for reduced transmission losses.
Advanced Robotic & Unmanned Systems:
Suitable for other high-power unmanned vehicles where compatibility with 800-1000V infrastructure or battery systems is required.
Technical Specifications
Parameter
Specification
Model | HLF8K-D50-1000 |
Input Voltage | 800–1000 VDC |
Output Voltage | 50 VDC (Adjustable 43–58 VDC) |
Output Current | 160 A |
Output Power | 8000W (8KW) |
Efficiency | ≥ 97% |
Communication | CAN 2.0B |
Protections | Input UVP/OVP, Output UVP/OVP/OCP, Short-Circuit Protection, Temperature Protection, Fuse |
Cooling Method | Heat sink with forced air cooling (required for full 8KW continuous operation) |
Vibration Resistance | Rubber damping pads / MIL-STD-810G compliant design |
Dimensions (L × W × H) | 187 × 185 × 70 mm |
Weight | 2.3 kg |
Operating Temperature | -40°C to +85°C |
Why Choose the HLF8K-D50-1000?
✅ Unlocks Next-Generation System Architecture – 800-1000V input capability is essential for maximizing efficiency in long-range tethered systems or advanced high-voltage UAV designs.
✅ Exceptional Power Density – 8KW output with weight of only 2.3kg in a compact form factor optimizes critical payload space and weight for aerial vehicles.
✅ Peak Efficiency for Mission-Critical Operations – ≥97% efficiency directly translates to extended flight times, reduced operational costs, and greater mission success.
✅ Intelligent & Fully Integrated – CAN bus enables sophisticated power management, real-time diagnostics, and seamless system communication.
✅ Built for Extreme Reliability – Comprehensive protection and ruggedized construction ensure unwavering performance in the most demanding flight environments.
Ordering & Support
For technical datasheets, application engineering support, or commercial inquiries, please contact our sales team and reference model:
HLF8K-D50-1000.
Vicor vs. Levanepower: 8kW PowerSupply Comparison
This document compares the Vicor and LevanePower power supply solutions in terms of cost, weight, heatsink, input/output voltage, and external circuit design.
1. Single Module Comparison
Parameter | Vicor BCM4414xH0E5035yzz | LevanePower HLF8K-D50-1000 |
Module Type | Fixed-ratio Bus Converter (BCM®) – 1:16 ratio | Non-isolated Regulated DC-DC Converter |
Input Voltage | 500 – 800 VDC | 800 – 1000 VDC |
Output Voltage | 31.3 – 50.0 VDC (follows input) | 48/50/58.5V VDC optional(fixed) |
Output Current | 35 A | 160 A |
Max Output Power | 1.6 kW | 8 kW |
Peak Efficiency | Up to 97.7% | ≥ 97% |
Dimensions (L x W x H) | 111 × 35.5 × 9.4 mm | 197 × 186 × 68 mm |
Weight | ~150 g (estimated) ,Need to configure peripheral circuits | 2.2 kg, No need for peripheral circuits, can be used directly |
Control Interface | PMBus™ | CAN bus |
Cooling | Conduction / baseplate | Forced air / conduction |
2. System-Level Comparison at EquivalentPower (8 kW)
To achieve 8kW output power, 5 Vicor modules (5 × 1.6 kW) arerequired in parallel, compared to 1LevanePower module.
Parameter | 5× Vicor BCM4414 (8 kW System) | 1× LevanePower HLF8K-D50-1000 (8 kW System) |
Number of Modules | 5 | 1 |
Total Output Power | 8 kW | 8 kW |
Total Volume (approx.) | 111 × 177.5 × 9.4 mm (~185 cm³), (without extend circuits) | 197 × 186 × 68 mm (~2,490 cm³) |
Volume Ratio | Larger overall and weighter when including heatsink and external circuitry | ~13.5× larger |
Total Weight (approx.) | ~2 kg | 2.2 kg |
System Complexity | High (parallel design, current sharing, PCB layout, heatsink) | Low (single module, used directly (no external components)) |
Output Regulation | Unregulated (depends on input) | Fully regulated 48/50/58.5 VDC(fixed) |
3. Price Comparison (Estimated – ForReference Only)
Note: Actual pricing depends on volume, distributor, andnegotiation. The following estimates are based on typical market ranges forindustrial quantities.
Configuration | Estimated Sample Price per Module | Total Cost for 8 kW System |
Vicor BCM4414 (1.6 kW) | $1074 | $5370 (5 modules) ,Significantly higher when including required PCB, enclosure, circuitry, and heatsink |
LevanePower HLF8K (8 kW) | $3000 | $3000 (1 module) , Included in module cost |
Conclusion on Cost:
At the 8 kW systemlevel, both solutions are cost-competitive, with the Lefeiersolution offering simplerintegration and regulated output at a similar orslightly lower total cost.
4. Volume Comparison at Equivalent Power (8kW)
Metric | 5× Vicor BCM4414 | 1× LevanePower HLF8K |
Total Volume | ~1850 cm³(Include extend circuitry) | ~2,421 cm³ |
Power Density | ~4.32 kW/L | ~3.2 kW/L |
Footprint Advantage | ✅ High – ideal for space-constrained systems | ✅ High – ideal for space-constrained systems |
Note: When scaled to 8kW, the Lefeier Energy 8kWsolution and the Vicor solution offer almost identical power density.Therefore, the LevanePower solution is also well suited for applications withstrict limitations on PCB area and height (e.g., embedded systems, aerospace).
Additionally,the LevanePower solution provides fully regulated output, simplerthermal management, and lower design complexity.
5. Summary & Recommendation
Consideration | Vicor BCM4414 (5-module array) | LevanePower HLF8K-D50-1000 |
Input Range | 500 – 800 VDC | 800 – 1000 VDC(680- 800VDC optional) |
Output | Unregulated (1:16 ratio) | Fixed 48VDC/50VDC/58.5VDC |
Power Density | Very high | Very high |
Design Effort | High (parallel, current sharing, layout) | Low (single module) |
Best For | Space-critical, distributed power architectures | Simple 48VDC/50VDC/58.5VDC power in one block |
✅ ChooseLevanePower HLF8K if:
· Your input voltage is stable at ≥680V or 800 VDC
· You need a simple,single-module 8 kW solution
· Regulated 48VDC/50VDC/58.5VDC output isrequired
· System volume is notthe absolute priority
✅ ChooseVicor BCM4414 array if:
· Input voltage is 500–800VDC
· Extreme power density (smallfootprint) is critical
· You are building a distributedpower architecture with multiple downstream loads
· Your team has experience with high-density power module design
If you can share your exact input voltage range, cooling method,and physical spaceconstraints, Our teams can help narrow down the recommendationfurther.
