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#Basic Power Supply #What is AC Electricity? #What is DC Electricity? #Transformer Connection Clip to measure AC AC waveform • Test the waveform of 12V inverter board... Please press follow, like, share and press the bell. Follow the page / jek.diy Website https://jekdiy.com Content Basic power supply circuits using transformers 1. Basic knowledge of alternating current (AC) and direct current (DC) 2. Connecting a basic circuit to 220V AC to 12V DC with regulator IC No. 7812 3. Connecting the power supply circuit from a center tap transformer, positive, ground, negative (+ Gnd -) 4. How to measure wires and connect wires for use with an old UPS transformer 5. How to make a battery charger from an old UPS transformer More content on the website https://jekdiy.com/%e0%b8%9e%e0%b8%b7...