Multipath Charger Management Module for Battery Thermal Control

Solution Overview

Problem

Conventional chargers for large-capacity batteries face challenges such as long charging times, thermal effects, and insufficient charging capabilities due to the use of a single charging path.

Innovation Solution

A multipath charger with a management module that selectively enables multiple charging paths, including a main switching charging circuit and an auxiliary charging circuit, to optimize battery charging based on the battery's operating state and adapter capabilities, thereby distributing the charging load and reducing thermal effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single charging path is used to charge a large-capacity battery, then the charger structure is simple, but the charging time is long and charging capability is insufficient

Engineering Contradiction:

Improvecharging capabilityVSAvoidcharging time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The charging system is divided into multiple independent charging paths (first charging path with main charging circuit, second charging path with auxiliary charging circuit). Each path can operate independently or simultaneously to charge the battery, thereby increasing overall charging capability and reducing charging time without significantly complicating the overall system structure.

Inventive Principle:

Principle #1Segmentation

2Productivity

If multiple charging paths are used to increase charging capability, then charging time is reduced, but the charger structure becomes complex

Engineering Contradiction:

Improvecharging capabilityVSAvoidcharger structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The charging system is divided into multiple independent charging paths (first charging path with main charging circuit, second charging path with auxiliary charging circuit). Each path can operate independently or simultaneously to charge the battery, thereby increasing overall charging capability and reducing charging time without significantly complicating the overall system structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The management module dynamically selects and switches between different charging paths based on real-time detection of battery operating states (such as temperature, charge level) and adapter capabilities. This dynamic adaptation allows the system to optimize charging performance while managing complexity through intelligent control rather than fixed multi-path architecture.

Inventive Principle:

Principle #15Dynamics

3Productivity

If high charging current is applied to charge large-capacity batteries quickly, then charging capability is improved, but thermal effects increase

Engineering Contradiction:

Improvecharging capabilityVSAvoidthermal effects

Core Design Contradiction:

ProductivityVSTemperature

Solution Approach 1:

The charging system is divided into multiple independent charging paths (first charging path with main charging circuit, second charging path with auxiliary charging circuit). Each path can operate independently or simultaneously to charge the battery, thereby increasing overall charging capability and reducing charging time without significantly complicating the overall system structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The management module dynamically selects and switches between different charging paths based on real-time detection of battery operating states (such as temperature, charge level) and adapter capabilities. This dynamic adaptation allows the system to optimize charging performance while managing complexity through intelligent control rather than fixed multi-path architecture.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10804738B2Multipath charger and charging method thereof

Publication Date: 2020.10.13 MEDIATEK INC

AI summary

A multipath charger includes a first charging path, a second charging path, and a management module. A supply voltage is coupled through the first charging path and the second charging path to a battery. The management module provides the supply voltage and detects the operating state of the battery. The management module selectively enables the first charging path, the second charging path, or both according to the operating state of the battery, so as to charge the battery through the enabled charging path.