An open frame power supply is a type of switching-mode power supply (SMPS) that features an exposed PCB and component layout without a full metal enclosure. Unlike enclosed or chassis-mount units, open frame designs are engineered to be integrated directly into host equipment — making them ideal for UAV ground control stations, drone charging infrastructure, payload power rails, and embedded avionics systems.
For UAV (Unmanned Aerial Vehicle) power systems, the demand for compact, lightweight, thermally efficient, and highly reliable power conversion has never been greater. Open frame power supplies meet these requirements by offering maximum power density in minimal volume, enabling UAV system integrators to build leaner, smarter, and more energy-efficient platforms.
UAV systems — whether for military surveillance, agricultural spraying, emergency response, or commercial logistics — depend on precise, stable, and uninterrupted DC power. A single power glitch can crash flight controllers, corrupt sensor data, or compromise mission safety. Open frame PSUs with high MTBF ratings and active protection circuits are the backbone of reliable UAV power architecture.
Open frame power supplies used in UAV systems offer a set of technical capabilities that are uniquely suited to the rigorous demands of aerial and ground-based UAV infrastructure:
● High Power Density: Open frame layouts allow engineers to pack more conversion capacity into smaller footprints — critical when every gram and cubic centimeter counts in airborne or portable ground systems.
● Superior Thermal Management: Without a sealed enclosure, heat generated by high-frequency switching transistors and magnetics can dissipate more efficiently through convection and forced airflow. This translates to longer operational lifetimes under continuous high-load conditions typical in UAV charging stations.
● Wide Input Voltage Range: UAV deployments happen in diverse environments — from remote military bases to commercial warehouses. Open frame PSUs with 85–264V AC universal input compatibility ensure reliable operation regardless of local grid conditions.
● Isolation and EMI Compliance: Advanced isolated topologies (flyback, LLC resonant, full-bridge) and built-in EMI filtering protect sensitive UAV flight controllers, GPS receivers, and data links from electromagnetic interference — a mandatory requirement in aviation-adjacent applications.
● Programmable Output Voltages: Modern open frame and programmable power supplies allow dynamic voltage and current adjustment via analog signals or digital interfaces (PMBus, I2C, RS485), enabling intelligent battery management systems (BMS) to precisely control multi-chemistry UAV battery charging profiles.
The global commercial drone market is projected to exceed $54 billion by 2030. This surge directly drives demand for high-performance open frame and programmable power supplies supporting drone fleets at industrial scale.
As UAV payload weights and flight times increase, battery capacities are growing to 10–50 kWh ranges. Open frame PSUs providing 10kW–100kW output with CC/CV precision are becoming standard for drone charging stations (DCS).
Integration of digital communication protocols (CAN bus, PMBus, Modbus) with AI-optimized BMS allows real-time adaptive charging and health monitoring, extending battery cycle life and improving fleet uptime.
Solar-hybrid and fuel-cell-powered UAV bases require power supplies with wide-range DC input compatibility (24–400V). Open frame designs with bidirectional conversion capability are emerging as the preferred architecture for sustainable UAV infrastructure.
Defense UAV programs globally are increasing budgets for field-deployable, ruggedized power modules. MIL-STD-compliant open frame PSUs operating across -40°C to +85°C are in high demand for tactical drone systems.
Next-generation GaN (Gallium Nitride) and SiC (Silicon Carbide) switching devices are enabling open frame PSUs with 95%+ efficiency at half the size, directly benefiting micro-UAV and tethered drone platforms.
Ground Control Stations are the command centers of UAV operations. They house flight computers, communication transceivers, video processing servers, and operator interfaces — all of which require clean, regulated DC power. Open frame PSUs in the 500W–3kW range with multiple isolated outputs (5V, 12V, 24V, 48V) are embedded within GCS enclosures to power all subsystems simultaneously while maintaining minimal size and weight for portable deployments.
Commercial logistics UAV operators such as those in last-mile delivery, precision agriculture, and infrastructure inspection require rapid battery turnaround times. Open frame programmable power supplies in the 3kW–15kW range, configured with CC/CV (constant current/constant voltage) charging curves, enable charging of LiPo and LiFePO4 drone batteries from 0% to 80% in under 20 minutes. Multi-port designs allow simultaneous charging of entire drone fleets without redundant hardware.
Tethered drones — used for persistent surveillance, emergency telecommunications, and event broadcasting — receive power continuously via a ground-based tether cable. Open frame PSUs delivering 1kW–10kW at high DC voltage (200–800V) with tight regulation are essential to compensate for cable impedance losses. Huyssen's programmable high-power open frame supplies are well-suited for this precision tethered power delivery application.
Agricultural drones carrying pesticide or fertilizer tanks integrate multiple power consumers: brushless motors, spray pump motors, GPS/RTK systems, and obstacle avoidance sensors. Multi-output open frame PSUs with 12V/24V/48V rails and POE (Power over Ethernet) capability supply all subsystems from a single compact power conversion module, reducing wiring complexity and improving system reliability in field conditions.
High-resolution EO/IR cameras, LiDAR scanners, synthetic aperture radar (SAR), and hyperspectral sensors are sensitive instruments requiring ultra-clean, low-ripple DC power. Open frame PSUs with
During UAV development and production, programmable open frame power supplies are used as bench-top simulation tools to emulate battery states, stress-test flight controllers, and validate power distribution circuits. Wide output range (0–100V, 0–150A), high resolution (1mV/1mA), and remote sensing capability make them indispensable in aerospace R&D labs and quality assurance environments.







Established in 2011, Huyssen Power is committed to being a better provider of power solutions. Our production lines include AC-DC power supplies, Din Rail power supply, Programmable power supply, Battery chargers, DC-DC converters, and more.
We have more than 1300+ models, widely used in various fields such as industry, Aeronautics and Astronautics, communication, healthcare, EV cars, consumer electronics, LED lightings, and UAV systems. With two production bases in Shenzhen and Dongguan, we ensure timely delivery and consistent quality for global customers.
Our team of engineers with 14+ years of domain expertise delivers tailor-made open frame and programmable power supplies that meet the exact energy specifications of modern UAV architectures — from compact 12V payload rails to high-voltage 15kW ground station systems.


State-of-the-art SMT lines and automated test equipment ensure every UAV power supply meets aerospace-grade tolerances.
100% burn-in testing, statistical process control, and fully automated final test before shipment — zero-compromise quality for mission-critical UAV applications.
From output voltage range to communication protocol, connector type, and form factor — we customize open frame PSUs to your UAV system spec precisely.
Dual production bases in Shenzhen and Dongguan support rapid prototyping and high-volume delivery schedules aligned with UAV project timelines.
Long-term partnership model with dedicated application engineers supporting UAV power system integration from concept to mass production.
CE, RoHS, FCC, BIS, CCC — our products are certified for global UAV and industrial markets, simplifying your compliance pathway.

All of our products are engineered to meet worldwide safety standards. Quality and process control is insured using a variety of statistical sampling and analysis techniques throughout the manufacturing cycle. In addition, all products should pass a rigorous burn-in and fully automated final test before shipment. We have two production bases, one is in Shenzhen and the other is in Dongguan, with timely delivery.

Furthermore, Huyssen Power also offers design service in order to meet customers' special requirements. If you can't find a suitable model from our catalog, our experienced R&D team can design a custom-made power supply to meet your needs. With over 22 years of R&D design experience in the power supply industry, we offer a total solution for you and would like to become your long-term power partner.
If you are interested in developing new products and want to create your own power supplies, we provide a one-stop solution from product concept, design, research and development to production.
A professional power supplies development team transforms UAV power concepts into testable prototypes.
Our own factory supports the large-scale production of UAV power products.
Assist UAV power products in passing various international standards and certifications.
If you have mature products design, technical specifications, or existing samples, we provide efficient and high-quality OEM production services for UAV power systems.
Strictly follow your drawings and quality standards for production.
With large-scale procurement and lean production, we reduce production costs for you.
A strict quality control system ensures every product meets your standards.
Flexible production capacity from small-batch to mass production.
Strictly abide by commercial confidentiality agreements to protect your intellectual property rights.







