Optimizing the performance and efficiency of a direct current (DC) power supply can be approached from several angles:

1. Select High-Quality Power Components: Utilizing power modules, rectifiers, filters, and other components with good stability and high-efficiency conversion characteristics can effectively enhance the performance and efficiency of the DC power supply.

2. Design Rational Power Topology Structure: Choose the appropriate topology structure based on actual needs, such as switching power supply or linear power supply, and layout the power circuit reasonably to reduce power loss and electromagnetic interference.

3. Optimize Power Control and Regulation Technologies: Employing advanced power control and regulation technologies, such as digital control technology and PWM (Pulse Width Modulation) regulation technology, can achieve precise voltage and current regulation, improving the stability and adjustability of the power supply.

4. Reduce Power Loss and Consumption: By designing and optimizing the power circuit reasonably, using low-power components and materials, and reducing the line impedance and conduction loss in the power circuit, the efficiency and energy efficiency of the power supply can be effectively improved.

5. Strengthen Heat Dissipation and Temperature Control Management: A well-designed heat dissipation structure and enhanced temperature control management are crucial for ensuring the stability and long-term reliable operation of the DC power supply. Using efficient heat dissipators and temperature control devices ensures that power components operate within the normal temperature range, enhancing the stability and lifespan of the power supply.

6. Regular Maintenance and Inspection: Regularly maintaining and inspecting the DC power supply, cleaning and checking power circuits, connection lines, and heat dissipation devices, and promptly identifying and repairing potential faults and issues are essential for ensuring stable operation of the power supply.

7. Use Third-Generation GaN Semiconductors: Leveraging the high-frequency switching characteristics and low on-resistance of GaN semiconductors can enhance the efficiency of power supply products and reduce their size, thereby reducing energy consumption and material usage.

8. Reduce Conduction and Switching Losses of Power Tubes: Opt for power devices with lower on-resistance, such as replacing MOSFETs with GaN, and reduce the effective value of the current flowing through the power tube by controlling and adjusting circuit parameters.

9. Reduce Copper Loss and Magnetic Loss of Transformers: Reduce the conduction resistance of transformers by lowering both DC and AC resistance, and minimize magnetic loss by reducing working frequency and magnetic flux density.

10. Optimize Rectification with Diodes: Use diodes with lower forward voltage drops or power tubes instead of diodes for rectification functions, controlling the conduction and cutoff of power tubes to achieve the same functionality as diodes and reduce rectification loss.

11. Optimize Driver, Sampling, and Control Circuit Losses: Select power tubes with smaller gate charge (Qg), such as GaN devices, reduce switching frequency, and choose highly integrated controllers to effectively reduce losses in these areas.

By implementing these measures, the performance and efficiency of the DC power supply can be effectively optimized, enhancing the stability and energy utilization efficiency of the power supply system.