symbolic representation of a SiC MOSFET and electromagnetic compliance

Unlocking SiC MOSFETs in Variable Frequency Drives while meeting EMC standards

Harnessing SiC MOSFETs for EMC-Compliant VFDs

SmartD Technologies, a leading innovator in the field of power electronics, is pushing the boundaries of Variable Frequency Drive (VFD) design with its groundbreaking clean power VFD. This state-of-the-art device utilizes Silicon Carbide (SiC) MOSFETs as power component output, replacing the traditionally used Insulated Gate Bipolar Transistors (IGBTs).

The Power of SiC MOSFETs

SiC MOSFETs offer several advantages over their IGBT counterparts. They are capable of switching at an impressive 105 KHz, a feat that would be impossible for conventional IGBTs. This high-frequency switching, combined with SmartD’s patented algorithm and embedded filters, allows the VFD to deliver a true sine wave output to the motors. This results in improved motor performance, increased efficiency, and reduced harmonic distortion.

Overcoming EMC Challenges

However, high-frequency switching presents its own set of challenges. One of the most significant is the difficulty in achieving acceptable levels of conducted disturbances, a critical factor in meeting Electromagnetic Compatibility (EMC) standards.

To overcome this hurdle, SmartD Technologies has ingeniously combined integrated sine-wave-EMI filters with a spread spectrum algorithm. This innovative solution effectively decreases disturbance peaks by more than 20 dB, thereby exceeding the required EMC levels

The Future of Power Electronics

SmartD Technologies’ clean power VFD represents a significant leap forward in power electronics. By harnessing the power of SiC MOSFETs, integrated filters and spread spectrum technology, the company is not only meeting the challenges of high-frequency switching but also setting new standards in motor performance and EMC compliance.

As we look to the future, SmartD Technologies is leading the way in revolutionizing the field of power electronics, delivering solutions that are not only innovative but also practical and efficient. The clean power VFD is a testament to the company’s commitment to pushing the boundaries of what’s possible, driving the industry forward, and paving the way for a more sustainable and efficient future.

This post is also available in: Français