Reverse Charging Circuit With Boost and Charge Pump Power Scaling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The power of wired reverse charging has not been increased, resulting in a low charging speed, despite advancements in mobile phone battery capacity and wired forward charging capabilities.
Innovation Solution
A charging system utilizing a boost chip and a charge pump chip to increase the voltage and power of wired reverse charging, with the boost chip boosting the voltage and the charge pump chip performing M-times buck or boost operations to adjust voltage and current according to the charging requirements of the battery, ensuring efficient and stable charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If OTG technology is used to implement wired reverse charging, then the charging function is achieved, but the charging power is limited to approximately 6W resulting in low charging speed
Solution Approach 1:
The patent changes the voltage and current parameters of the charging system by introducing boost and charge pump chips. The boost chip increases the voltage from the first battery, and the charge pump chip further multiplies the voltage (M-times boost) to achieve high-power reverse charging, transforming the traditional low-power OTG charging into a high-power charging system.
2Power
If a buck chip is used in the charging device to output voltage, then voltage conversion is achieved, but the output voltage is fixed at approximately 5V limiting power increase
Solution Approach 1:
The patent replaces the fixed-voltage buck chip with dynamic voltage conversion chips (boost chip and charge pump chip) that can continuously and linearly adjust the output voltage. This allows the system to adapt to different battery requirements and achieve variable power output, transforming from a static 5V output to a dynamic high-voltage output capable of fast charging.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables high-power and high-speed wired reverse charging by dynamically adjusting voltage and current to meet the real-time charging needs of the battery, improving user experience and charging efficiency.
Implementation Method 1
The boost chip is configured to: receive the first voltage input by the first battery and output a second voltage to the second device, where the second voltage is greater than the first voltage
Implementation Method 2
The charge pump chip is configured to: receive the second voltage input by the first device and output a third voltage to the second battery, where the second voltage is M times the third voltage
Data Source
AI summary
A charging method and system, an electronic device, and a computer storage medium are disclosed. The system includes a first device and a second device. The first device includes a boost chip and a first battery. The second device includes a charge pump chip and a second battery. The first battery is configured to output a first voltage to the boost chip. The boost chip is configured to: receive the first voltage and output a second voltage to the second device, where the second voltage is greater than the first voltage. The charge pump chip is configured to: receive the second voltage and output a third voltage to the second battery, where the second voltage is M times the third voltage, and M is a positive number greater than 1. The second battery is configured to: receive the third voltage and perform charging.