Switched Capacitor Battery Charging Circuit
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Solution Overview
Problem
Existing battery charging technologies face inefficiencies due to power loss in charging circuits, particularly when high voltage charging is used, leading to reduced charging performance and potential overheating issues.
Innovation Solution
A method and apparatus utilizing a switched capacitor to convert high voltage charging power to lower voltage power before it reaches the charging circuit, thereby preventing power loss and providing an overvoltage prevention function, while also enabling On-The-Go power supply using a switched capacitor configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging current is increased to shorten charging time, then charging speed is improved, but power loss in the charger increases
Solution Approach 1:
The patent changes the voltage parameter of the charging power by converting high voltage charging power to low voltage charging power using a switched capacitor circuit before it reaches the charging circuit, thereby reducing power loss while maintaining charging speed
2Productivity
If high voltage charging power is provided to charging circuit, then charging efficiency is improved, but overheating and power loss occur in charging circuit
Solution Approach 1:
The patent introduces a switched capacitor circuit as an intermediary component between the charger and the charging circuit to convert high voltage charging power to low voltage charging power, thereby protecting the charging circuit from overheating and power loss while maintaining charging efficiency
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
This approach enhances battery charging efficiency by minimizing power loss within the charging circuit, prevents overheating, and allows simultaneous battery charging and device operation, while ensuring safe power delivery to external devices.
Implementation Method 1
A method and apparatus utilizing a switched capacitor to convert high voltage charging power to lower voltage power
Data Source
AI summary
An apparatus and a method for charging a battery in an electronic device are provided. The method includes, when charging power of a first level is supplied from a charger, converting the charging power of the first level to a charging power of a second level before providing charging power to a charging circuit, providing the charging power of the second level to the charging circuit, wherein the charging power of the first level is greater than the charging power of the second level.