SBASB59 July 2025 AMC0330S
PRODMIX
AC-line powered power supplies are divided into two or more voltage domains that are galvanically isolated from each other. For example, the high-voltage domain includes the AC grid, DC link, and the power stage for power-factor correction (PFC). The low-voltage domain includes the system controller and human interface. The PFC controller measures the value of the AC line voltage while remaining galvanically isolated from the AC mains for safety reasons. With the high-impedance input and galvanically isolated output, the AMC0x30S enables this measurement.