Reference Design Of Section-Shifted Full-Bridge Present-Doubler

The design converts 400V to 12V DC with as much as 95.36% effectivity. It options superior expertise for high-frequency switching and is appropriate for telecom and energy provide functions.

The SMPS market has just lately shifted in the direction of greater energy density and price optimization. Reaching excessive energy density additionally necessitates excessive effectivity to attenuate warmth dissipation. Whereas absolutely resonant topologies like LLC are sometimes considered as one of the best strategy for this energy vary and voltage class, the 1000 W PSFB-CDR demonstrates how developments in semiconductor expertise and management algorithms have enabled a easy and well-known topology to realize effectivity ranges beforehand thought-about unattainable. The VD_1000W_GaN_PSFB_XDP is a reference design from Infineon Applied sciences for a 400 V DC to 12 V DC remoted phase-shifted full-bridge with a current-doubler rectifier (PSFB-CDR), utilizing the XDPP1100-Q040 XDP digital energy controller. 

The design delivers a programmable and configurable energy converter that achieves as much as 95.36% effectivity with an influence density of 67 W/inch³. It options line-transient and load-transient efficiency via a hardware-based PID controller module and feed-forward (FF) response, guaranteeing voltage regulation beneath gentle load situations.

– Commercial –

Built-in PMBus and I2C communication interfaces improve system configuration, management, telemetry updates, and fault monitoring. Moreover, this design incorporates IGT60R070D1 high-voltage (HV) gallium nitride (GaN) FETs, enabling high-frequency switching at 350 kHz, appropriate for energy functions. Potential functions of this design embrace energy provide models and telecommunications programs.

This technique’s advantages embrace pre-programmed management for fast time-to-market. It contains a energy density of 110 W/in³ utilizing GaN semiconductor switches. The system gives voltage, present, and temperature telemetry with fault safety. The management system responds rapidly to modifications. Moreover, it helps optimization via PMBus changes.

– Commercial –

The system options voltage accuracy as much as ±0.5% throughout a full temperature vary of -40 °C to 125 °C. It incorporates absolutely programmable digital management based mostly on a 32-bit ARM® Cortex™-M0 processor. The system gives distinctive feed-forward and cargo regulation using Infineon’s patented quick transient response management. System configuration, monitoring, and management are facilitated via PMBus and GUI assist, with extra temperature compensation performance.

A number of the key parameters of the design embrace:

• Board Kind: Digital Design
• Dimensions: 132mm× 55mm× 34mm
• Household: OptiMOS™ 5 ; Digital energy controller ; Gate Driver
• Frequency: 350 kHz
• Enter Kind: DC
• Output Present: 0 A to 84 A
• Output Voltage: 12 V
• Pout: 1024 W
• Provide Voltage: 360 V to 400 V

Infineon Applied sciences has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) format, and extra. The corporate’s web site has extra knowledge concerning the reference design. To learn extra about this reference design, click on right here.