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Advice required for simple Laptop Power Supply ID-Sense circuit | Electronics Forum (Circuits, Projects and Microcontrollers)
Electronic Circuits, Transformerless Power Supply, LED Drivers, Battery chargers, Solar Circuits: Make a Laptop charger (efficient and reliable) from a car battery 12v at home
adapter - What is the purpose of all these resistors and capacitors in this power supply? - Electrical Engineering Stack Exchange