Adjustable Power Supply Circuit Using LM723
This circuit is built around the LM723, a dedicated voltage regulator IC. By adjusting P1, the output voltage can be continuously varied from 0 to 30V. Q1 is used as a current driver stage, which requires a heat sink for proper operation. R3 serves as a sampling resistor for the protection circuit. The design is simple, reliable, and offers excellent voltage regulation performance. Detailed component values are listed in the attached table.
The LM723 is a versatile integrated circuit that can be used in a wide range of power supply applications. It provides internal reference, error amplification, and output stage functions, making it ideal for designing adjustable power supplies. With the right external components, this circuit can deliver stable and precise voltage outputs. Whether you're working on a lab power supply or a custom electronics project, the LM723 is a great choice for its reliability and flexibility.
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