LM723组成的可调稳压电源电路

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Probe Current and Voltage Probe 420*4450, Head Diameter 5.0mm, High Current Current and Voltage Probe

A Variable 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 smoothly varied from 0 to 30 volts. Q1 serves as a current driver extension, which requires a heatsink for proper operation. R3 acts as a sampling resistor for the protection circuit. The design is simple, reliable, and offers excellent voltage regulation performance. Component values are listed in the attached table.

This power supply is ideal for various applications that require adjustable voltage output. It’s commonly used in laboratory settings, DIY electronics projects, and custom-built power solutions. The LM723 provides stable output with minimal ripple, making it a popular choice among engineers and hobbyists alike. If you're looking for a cost-effective and easy-to-build power supply, this circuit is definitely worth considering.