Multi-Chip Charging Circuit for Power and Heat Balancing
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Solution Overview
Problem
Existing electronic devices face challenges in efficiently managing charging power and temperature during battery charging, as multiple charging chips configurations can lead to increased heat and inefficiencies in charging strategies.
Innovation Solution
A charging circuit with multiple independent charging chips, each equipped with voltage sampling ends connected to the battery poles, allowing for flexible operation modes and control based on device states and application running conditions, enabling adaptive charging and heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If two or more charging chips are used to increase charging power, then charging power is improved, but temperature increases during charging
Solution Approach 1:
The charging system is segmented into multiple independent charging chips, each capable of independent charging operation. Each charging chip has its own voltage sampling ends connected to battery poles, allowing individual control and monitoring. This segmentation enables flexible charging strategies where chips can operate independently or in combination, managing heat distribution across multiple components rather than concentrating power in a single chip.
2Adaptability or versatility
If multiple charging chips are used with different layouts and connection modes, then charging flexibility is improved, but device complexity increases
Solution Approach 1:
Each charging chip is designed with universal functionality to operate in independent charging mode, with standardized voltage sampling ends that can be connected to battery poles. This multi-functionality allows the same chip design to be used in various configurations and connection modes without requiring different chip designs, thereby reducing overall system complexity while maintaining charging flexibility.
3Measurement precision
If independent voltage sampling is implemented for each charging chip, then charging control precision is improved, but manufacturing complexity increases
Solution Approach 1:
The voltage sampling circuitry is copied for each charging chip, with each chip having its own dedicated voltage sampling ends connected to the battery poles. This copying approach ensures that each chip can independently and precisely monitor battery voltage for its charging operations, improving control precision while using standardized, repeatable circuit designs that facilitate manufacturing through consistency.
Data Source
AI summary
A charging circuit includes at least two charging chips for charging a battery of an electronic device. Each of the at least two charging chips is configured to operate in an independent charging mode. Each charging chip includes a first voltage sampling end and a second voltage sampling end for collecting voltage information of the battery, and each charging chip is configured for independent charging according to the collected voltage information. The first voltage sampling end and the second voltage sampling end are respectively connected to two poles of the battery.