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

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

voltage - How to calculate the capacitor output when connected to ac of 220v? - Electrical Engineering Stack Exchange

how to make an inverter? using 12v to 220v. electronics Electronic circuit design, Electrical circuit diagram, Electronics circuit

relay - How to feed a 12V DC timer circuit from 220V AC power lines? - Electrical Engineering Stack Exchange

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2PCS AC DC Switching Power Supply Module, AC 220V To DC 5V Micro-Volume Isolated Switching Power Supply Board Isolated Regulated Power Supply Module : : Business, Industry & Science

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220v ac to 12v dc converter circuit diagram 12v transformer less power supply