Universal AC Voltage Step-Down Power Converter – 18V DC Output From 85-265V AC Input

https://www.electronics-lab.com/project/universal-ac-voltage-step-down-power-converter-18v-dc-output-from-85-to-265v-ac-input/

The project described here is an off-line universal AC Voltage input step-down regulator that provides accurate constant voltage (CV) output, outstanding low standby power, high efficiency at light load, and excellent dynamic response based on non-isolated buck topology. The project is built using the AP3928 chip. The project provides 18Vdc output @ 250mA from AC […]