A development system supporting high-efficiency AC-DC designs up to 250 W, featuring active PFC and LLC stages with MCU support for output current control.
The new Lightning Development System from Future Electronics supports AC-DC designs up to 250 W, utilizing the TEA2017 combination controller from NXP. The TEA2017 integrates active PFC control and LLC DC-DC control, enabling high efficiency across a wide input power range. The PFC stage supports discontinuous conduction mode, quasi-resonant mode, and continuous conduction mode, ensuring high power factor and low harmonic distortion over a broad range of power levels.
Key Highlights
- A plug-in card on the output, including an LPC800 MCU and additional components, facilitates interface and control of output current settings.
- The output voltage is nominally configured for 42 V, but alternative LLC transformer designs can support reconfiguration for a 48 V output.
- Silicon power MOSFETs are used throughout the design, balancing high performance with cost-effectiveness.
- Synchronous rectification is provided on the secondary-side of the ac-dc stage using 150-V rated Si MOSFETs using centre-tapped transformer configuration (supporting output voltage levels to 52 V maximum).
In portable systems, robotics, and other electronics sectors, power engineers face increasing pressure to deliver higher power density and reduced system weight. With the superior switching capabilities of MasterGaN1, faster switching frequencies can be achieved in resonant LLC DC-DC power stages without compromising efficiency. This enables significant reductions in the size of bulky magnetic components.
The integrated dual-driver and dual-GaN HEMT in a half-bridge configuration, along with the compact package size of MasterGaN1, further supports high power density.
The GaNstar development system enables power designers to leverage these advantages. It provides guidance and support for implementing fast-response digital control using the STM32G4 microcontroller family. Digital control of resonant LLC DC-DC operation is achieved on the primary side, enabling a unified AC-DC solution (PFC and DC-DC stages) with a single STM32G4 microcontroller.
Features
- 94.5% peak efficiency (230 Vrms input)
- Combined PFC and LLC AC-DC controller (TEA2017)
- Cost-effective design with silicon MOSFETs
- Adaptable and flexible development platform (42 V nominal output)
- Support for 48 V nominal output with an alternative LLC transformer
- MCU control for output current adjustment and monitoring
- Input voltage range: 90 Vrms to 265 Vrms
- Output voltage: 42 V DC (48 V with alternative transformer)
- Supports loads up to 250 W
Key Components of Lightning
- NXP TEA2017 PFC + LLC AC-DC controller
- MPS MP6925AGS-Z synchronous rectification controller
- Infineon IPA60R180P7, 600 V, 180 mΩ silicon MOSFETs
- Infineon IDL04G65C5, 650 V, 12 A SiC diode
- NXP LPC800 series microcontroller
- NXP TJF1051 CAN transceiver
- Custom magnetics from Triad Magnetics Inc.
Block Diagram
Featured: NXP’s TEA2017 Digital Configurable LLC & Multimode PFC Controller
The NXP TEA2017xxT simplifies resonant power supply design with its low component count and compact SO16 package. Its high-speed, configurable digital architecture ensures reliable real-time performance. Developers can adjust LLC and PFC settings during development to meet specific needs, with secure configurations to protect proprietary content. Unlike traditional resonant topologies, the TEA2017xxT achieves high efficiency at low loads through its LLC low-power mode, bridging continuous switching and burst mode operation.
Related: 250 W E-Bike Charger Using NXP TEA2017 Combo Controller
Inquire for more information on the Lightning development system
Lightning is supplied to pre-qualified customers of Future Electronics.
For more information, contact your local branch or visit: www.my-boardclub.com
