please mention weather you want 12 - 0 -12 Volt 1. AC or DC, 2, Regulated or un regulated. 3. Maximum current rating. (load current) 4. Input AC 110 V or 220 V. These details are required to for circuit diagram. You may also give application of the power supply, so that most suitable circuit diagram can be given.
These circuits are based on a mains transformer having a dual winding, so has an AC input, as I have said previously, you need some form of switch mode power supply, cheers, Richard
The discussion centers on designing a simple 12-0-12 volt power supply circuit using a transformer and voltage regulators 7812 and 7912. The original request is for a circuit diagram that steps down 230V AC input to a dual 12V AC output, which is then rectified and regulated to provide ±12V DC. Clarifications were sought regarding whether the output should be AC or DC, regulated or unregulated, the maximum load current, and the input voltage specification (110V or 220V AC). A recommended solution involves using a dual secondary winding transformer (12-0-12 VAC), a bridge rectifier or full-wave rectifier, smoothing capacitors, and 7812/7912 linear voltage regulators for positive and negative 12V DC outputs. For higher current requirements (e.g., 7A), a switch-mode power supply or appropriately rated transformer and regulators are suggested. Reference to an external schematic from electroschematics.com was provided as a practical example. The discussion emphasizes the need for detailed specifications to tailor the power supply design effectively. Summary generated by the language model.
