Construct a 25kW DC EV charger utilizing Silicon Carbide expertise. It will allow two-way energy stream and assist for 400V and 800V batteries.
The Full SiC 25kW DC EV charger platform is a vital development within the quickly rising electrical car (EV) charging infrastructure. Because the demand for electrical vehicles continues to rise, quick, environment friendly, and dependable charging options have gotten important. Based mostly on the Silicon Carbide (SiC) expertise, this platform provides excessive effectivity, improved energy density, and the flexibility to assist a large voltage vary, making it appropriate for numerous EV battery techniques. The SEC-25KW-SIC-PIM-GEVK reference design equipment from Onsemi supplies an answer for designing a 25kW quick DC electrical car (EV) charger utilizing a SiC energy built-in module.Â
This platform integrates a Energy Issue Correction (PFC) stage and a DC-DC conversion stage, that includes a number of 1200V, 10 mOhm half-bridge SiC modules (NXH010P120MNF1). These modules cut back conduction and switching losses, bettering the system’s effectivity.
The design features a Common Controller Board (UCB), which mixes a Zynq-7000 SoC FPGA and ARM-based processor to supply management. This permits the charger to ship as much as 25kW of energy with over 96% effectivity. It helps an output voltage vary of 200V to 1000V, making it appropriate for charging 400V and 800V EV batteries.
The platform is designed for EV charging and three-phase AC-DC conversion functions, providing an answer for transferring vitality from alternating present (AC) to direct present (DC) for quick charging.
The platform features a high-current driver, an auxiliary energy resolution to make sure steady voltage rails and built-in protections like inrush management and over-voltage safety. These options guarantee protected operation throughout fast-charging classes. Moreover, the platform helps a number of communication interfaces for integration with different techniques.
Working with an enter voltage of 400Vac (EU) or 480Vac (US), the platform helps an output voltage vary from 200Vdc to 1000Vdc. The charger’s Three-Part Energy Issue Correction (PFC) and Twin Lively Bridge (DAB) topology enable for bidirectional energy conversion, making the platform suitable with 400V and 800V battery techniques.
This reference design meets electrical car charging requirements and is compliant with EN55011 Class A requirements and IEC 61851 laws. The system’s key parts embody the SiC module, a half-bridge design with 1200V, 10 mOhm SiC MOSFETs, and the NCD57000 high-efficiency gate driver, guaranteeing dependable operation.
Design engineers can use this as a reference platform to prototype and deploy EV chargers, leveraging its options to combine SiC expertise into charging options and meet trade requirements for quick EV charging functions.
Onsemi has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) structure, and extra. The corporate’s web site has extra knowledge in regards to the reference design. To learn extra about this reference design, click on right here.
