How to design a circuit to get 12V DC supply from a 230V (RMS) AC

Calculate Resistor and Capacitor in Transformerless Power Supplies

5V DC Regulated Power Supply with Short Circuit Protection - Schematic Design

Transformerless Power Supply : Construction, Working and Its Types

Transformerless Power Supply Circuit Diagram

LTSpice Simulation of AC to DC converter Full Wave Bridge and Transformer for Linear Power Supply

Transformer less Capacitor DC power supply circuit and design

How to build Simple 12 Volt Car Battery Charger Circuit - DCAClab Blog

Power Supplies Without Transformers

Hybrid Powerful ac 230v to dc 12v converter circuit for Varied Uses

AC to DC Converters: Features, Design & Applications