Dual Output Power with Over 90% Efficiency: Inside the Xenomorph 2 Demo Board
Dual Output Power with Over 90% Efficiency: Inside the Xenomorph 2 Demo Board 
Imagine a dual-output power supply capable of delivering 60 watts from an input range of 300 to 1000 VDC — while maintaining over 90% efficiency across the entire range. That’s exactly what this demo board delivers, showcasing the power of Xenomorph 2 and its 1700 V GaN switch.
Built for High-Voltage Applications
With a maximum input of 1000 VDC, this design is ideal for auxiliary power in demanding systems, including:
- Battery energy storage systems
- Commercial EV charging stations
- Industrial power systems
A standout advantage of Xenomorph 2 is the ability to eliminate downstream DC-DC post regulators while keeping accurate regulation on multiple outputs. That can reduce component count by up to 50%, simplifying designs and cutting cost and complexity.
Smarter Power Flow & Cross-Regulation
The key is a unique control approach: when the selection feed is on, energy is directed to the bottom output; turn it off, and energy routes to the top output. This improves cross-regulation between outputs and reduces losses common in multi-output architectures.
In testing, the board achieved 90%+ efficiency across the full 300–1000 V input range — not only because the second power-conversion stage is removed, but also due to Zero Voltage Switching (ZVS) on the primary switch.
ZVS = More Efficiency, Less Heat
As input voltage increases, the efficiency benefits become more pronounced. At 1000 VDC, the system shows an improvement of over 1%, achieved without any additional circuitry.
ZVS also drives excellent thermal behavior. At 1000 VDC input, the IC’s temperature rise is less than one-quarter of what it would be without ZVS. Thanks to that thermal margin, no heatsinks are required — PCB cooling is sufficient.
Try the Demo Board
Interested in evaluating the design? Request the RDK-1053 demo board through your local FAE or sales office. Learn more about Xenomorph 2 and the 1700 V GaN switch at power.com.
