DCHV technology achieves Lloyd’s Register Type Approval
3 September 2026
BrightLoop White Papers Series – Common-Mode
Reducing Common-Mode Voltage at the Source
As power converters become smaller and more power-dense, faster switching can make common-mode voltage increasingly difficult to manage at system level.
In conventional three-phase AC/DC architectures, this often means relying on additional hardware such as external common-mode filters, differential-mode filters, isolation transformers or shielded cabling.
BrightLoop’s ACHV platform takes a different approach.
Its clamped star-point architecture is designed to drastically reduce common-mode voltage variations directly at the source, while common-mode and differential-mode filtering are integrated inside the converter itself. This can simplify the surrounding electrical architecture and reduce the integration effort required from system designers.
The benefits go beyond EMC performance. Lower common-mode current can also help reduce leakage current, nuisance RCD tripping, bearing currents, galvanic corrosion and parasitic overvoltage.
Our engineering team explains the architecture, operating principle and experimental validation in detail in the White Paper:
