220v to 12v circuit problem - Electrical Engineering Stack Exchange

good afternoon i bulid a circuit to convert 220v ac to 12v dc so i can power a 12v dc relay. once i attach the output to the relay the voltage drop to 2v once i disconnect it and attach the positiv

220V AC to 12V DC Converter Power Supply Using Diodes, Capacitors, Resistors, & Transformers

3 Solid-State Single IC 220V Adjustable Power Supply Circuits - Homemade Circuit Projects

Solocell 200W Inverter Motherboard Printed Circuit Board DIY for Home, Projects,12 Volt Direct Current (DC) to 220 v Alternating Current (AC), prewired Inverter Printed Circuit Board kit : : Home & Kitchen

How to convert 220V to 12V - Quora

I need curcuit 220v ac to 12v 3A output for my school project., help please

220V-AC to 12V-DC 18W Switching Power Supply - Technology - PCBway

How to convert 12v into 220v - Quora

Electronic Spices 12V 3A Power Supply Board (PCB) (220V AC to 12V DC SMPS Power Supply PCB Circuit) : : Computers & Accessories

capacitor - Understanding/analyzing a power supply circuit - Electrical Engineering Stack Exchange

If I have 220V at my outlet and I plug in many appliances, does that mean the Voltage will be automatically increased by my electric company so that more current can flow?