A stable output device for battery charging chip
By connecting a load switch chip with smaller internal resistance in parallel in the battery charging chip, the voltage drop problem of electronic devices during instantaneous high current load at low voltage is solved, and the stable operation and reliability of the device are improved.
CN222721158UActive Publication Date: 2025-04-04SHENZHEN ADDX INNOVATION TECH CO LTD
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Patent Information
- Application Number
- CN202421300350.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-07
AI Technical Summary
Technical Problem
At low voltage, electronic devices may cause excessive voltage drop when loading at instantaneously high current, resulting in unexpected shutdown or restart of the equipment, reducing the reliability and life of the equipment.
Method used
In parallel, a load switch chip with smaller internal resistance is connected to the battery charging chip. Through the combination of resistor and MOS tube, the enable pin EN is controlled to reduce the overall internal resistance and reduce the voltage drop.
Benefits of technology
It effectively reduces the voltage drop during instantaneous high current load, improves the stability of the equipment at low voltage, avoids accidental shutdown or restart, extends the service life of the equipment and improves reliability.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application provides a battery charging chip stable output device. The device comprises a battery charging chip (1) and a load switch chip (5), wherein the load switch chip (5) is arranged between a battery (2) and a load (3), the battery (2) is also grounded through a resistor R531 and a MOS tube (6), the gate of the MOS tube (6) is connected to a charger (4), and an enable pin EN of the load switch chip (5) is connected between the resistor R531 and the MOS tube (6); when the charger (4) is not charging, the MOS tube (6) is disconnected, and the battery (2) supplies power to the load (3) via a parallel circuit of the load switch chip (5) and the battery charging chip (1); when the charger (4) is charging, the MOS tube (6) is connected, the load switch chip (5) is disconnected, and the battery (2) supplies power to the load (3) via the battery charging chip (1). The present application enables the device to work stably, thereby improving user satisfaction and product reliability.
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