The 1 kW engine cooling fan’s reference design for 12 V functions may be adjusted for related functions with equal or lesser energy wants.
An engine cooling fan is required to control the engine’s temperature and forestall it from overheating. Because the engine operates, it generates vital warmth that must be dissipated to take care of optimum working situations. The cooling fan performs an important function on this course of by drawing air via the radiator, which helps dissipate warmth from the engine coolant. By sustaining correct engine temperature, the cooling fan ensures environment friendly combustion, prevents engine injury, and extends the engine’s lifespan. To deal with this downside, a 1 kW engine cooling fan reference design for 12 V functions was launched by Infineon Applied sciences. The reference design showcases an automotive 3-phase motor drive for engine cooling fan functions. By utilising this reference design, producers can save time and assets in growing their cooling fan techniques whereas making certain excessive efficiency and compatibility. This resolution can be utilized for related functions with smaller or equal energy consumption.
The design utilises MOSFETs with a gate cost better than 100nC, enabling excessive present functionality. This design incorporates the world’s first built-in bridge driver, able to effectively driving 1 kW motors at 12V, setting a brand new normal in efficiency and integration for automotive cooling techniques. The reference design incorporates two key elements. The primary element is the embedded energy Built-in Circuit (IC) that serves as a single-chip 3-phase motor driver and affords a complete System-on-Chip (SoC) resolution. This machine integrates an industry-standard Arm Cortex M3 core, Native Interconnect Community (LIN) transceiver, bridge driver, and energy provide. Its integration allows the implementation of superior motor management algorithms like sensorless field-oriented management (FOC), offering environment friendly and exact motor management capabilities. The second essential element is a 40 V MOSFET providing a smaller type issue of seven×8 mm² whereas sustaining glorious thermal efficiency.
The reference design affords a spread of options for 12V automotive cooling fan functions. It incorporates measures for optimised thermal behaviour, enhancing the cooling fan’s efficiency and reliability. The design features a Serial Wire Debug (SWD) port for simple debug connection and devoted ports for Corridor sensors, LIN communication, and Analog-to-Digital Converter (ADC) measurements. The reference design operates on the temperature vary of -40 °C to 105 °C. The board effectively dissipates warmth from the shunts through the thermal pad and centre bolt. A flat heatsink may be hooked up on the backside with no surface-mounted elements. Solely the leads of the through-hole electrolytic capacitors protrude, requiring minimal heatsink modification. The embedded energy IC machine affords scalability, permitting clients to increase the platform method for functions as much as 1 kW.
This reference design has been examined by Infineon Applied sciences. It comes with a Invoice of Materials BOM, schematics, Gerber file, Printed circuit board (PCB) structure, Schematic, and so on. You could find further information concerning the reference design on the corporate’s web site. To learn extra about this reference design, click on right here.
