A multi-path power supply priority switching circuit and electronic device

The multi-power priority switching circuit, designed entirely with hardware, overcomes the shortcomings of existing power priority control technologies, achieving efficient and stable power switching, improving the reliability and real-time performance of the power supply system, and reducing control costs.

CN224367583UActive Publication Date: 2026-06-16NANCHANG HUAQIN ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANCHANG HUAQIN ELECTRONIC TECH CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing technologies struggle to achieve highly reliable, deterministic, and real-time power priority control in multi-power supply functions, and software control solutions are costly.

⚗Method used

Employing a pure hardware circuit design, a multi-power supply priority switching circuit is used, which utilizes circuit branches composed of diodes, PMOS transistors, NMOS transistors, and resistors to achieve efficient power supply priority switching, ensuring that the power supply output is automatically adjusted according to the input voltage priority.

🎯Benefits of technology

It improves the reliability, determinism, and real-time performance of power supply, reduces control costs, avoids delays and failures in software control, adapts to various power supply methods, and ensures stable equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to power supply switching technical field discloses a kind of multi-path power supply priority switching circuit and electronic equipment, through pure hardware circuit design, the efficient priority switching function of multi-path power supply is realized, compared with prior art, the circuit can be under a variety of power supply input scene, accurately switches power supply according to established priority, and by the quick response characteristic of pure hardware circuit, reach the purpose of fast real-time switching power supply, guarantee the stable operation of equipment.This design not only significantly improves the reliability, certainty and real-time of power supply, but also reduces control cost, avoids the delay and failure that can appear in software control.In addition, the circuit has wide applicability and can adapt to various power supply modes, providing an efficient and stable power supply solution for complex and variable practical application scenarios, with significant practical value and promotion prospects.
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