Here is a simple 12V circuit, power is not easy to build the circuit at all. Simply by connecting the inter-connection as schematically attached with cables or son are properly shielded equipment. A beginner can assemble a schema is 12V in half an hour.
12V power supply circuit uses a transformer input 0-15V 3A AC. Unregulated DC supply voltage through a diode bridge integrated component and of the electrolyte capacitor. For a regulated DC voltage needs a 12V zener diode and a 2N3055 transistor with 3A maximum load current capabilities. Thus, the power supply circuit supplying 12V fixed output voltage.
To connect properly, you must know the pin out of the 2N3055, 2N3055 click to guide technical datasheet. For optimal heat 2N3055 transistor needs a heat sink attached to it. If you want an adjustable output voltage, it requires only small changes in input transistor 2N3055 base with a variable voltage. To this end, may use a LM723 IC. Caution in experimentation to a 12V supply circuit.
12V power supply circuit uses a transformer input 0-15V 3A AC. Unregulated DC supply voltage through a diode bridge integrated component and of the electrolyte capacitor. For a regulated DC voltage needs a 12V zener diode and a 2N3055 transistor with 3A maximum load current capabilities. Thus, the power supply circuit supplying 12V fixed output voltage.
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