A development system supporting high-efficiency AC-DC designs up to 250 W, with active PFC and LLC stages, with MCU support for controlling output current.
The new Lightning development system from Future Electronics supports ac-dc development up to 250 W using the popular TEA2017 combination controller from NXP Semiconductors, which combines active PFC control and LLC dc-dc control. The control methods employed by TEA2017 support high-efficiency for the ac-dc stage over a wide range of input power. The PFC control supports discontinuous conduction mode, quasi-resonant, and continuous condition mode operation providing high power factor and low harmonic distortion across a broad range of power levels.
A plug-in card on the output including a LPC800 MCU and other components supports interface and control of output current settings.
Output voltage is nominally configured for 42 V. However, support is available to reconfigure using alternative LLC transformer design for 48 V output.
Silicon power MOSFETs are used through the design combining high-performance and 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 many other electronics industry sectors power engineers are under pressure to achieve higher power-density capability and reduced weight for power systems. Due to the superior switching capabilities of MasterGaN1 faster switching frequency operation can be employed in resonant LLC DC-DC power stages without impacting system efficiency. Bulky magnetic components can be significantly reduced in size with this faster switching operation. The integrated features of dual-driver and dual-GaN HEMT in half-bridge configuration and the small package size of MasterGaN1 support higher power-density.
The GaNstar development system provides the power design engineer with support to take advantage of these capabilities. GaNstar provides the user with instruction and support to implement fast-response time digital control using the features and capability of the STM32G4 microcontroller family. Digital control of resonant LLC DC-DC operation is achieved on the primary-side – an enabling step to achieve full AC-DC operation (PFC and DC-DC stages) in a single STM32G4 microcontroller.
Features
- 94.5 % Peak Efficiency (230 Vrms input)
- Combined PFC and LLC ac-dc controller (TEA2017).
- Cost-effective design (using Si MOSFETs).
- Adaptable and flexible development platform (output voltage 42 V nominal)
- Alternative LLC transformer available supporting 48 V nominal output voltage
- MCU control to adjust output current and provide monitoring
- Input voltage range: 90 Vrms to 265 V rms
- Output voltage: 42 V DC (48 V upon request and supply of alternative LLC 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 Si MOSFETs
- Infineon IDL04G65C5, 650-V, 12-A SiC diode
- NXPLPC800 series microcontroller
- NXP TJF1051 CAN transceiver
- Custom magnetics from Triad Magnetics Inc.
Block Diagram
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
