Semiconductor Device Integrating Direct and Switching Charging Modes
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Solution Overview
Problem
Existing semiconductor devices face limitations in controlling constant voltage during direct charging, leading to increased size and heat generation when separate direct and switching chargers are used.
Innovation Solution
A semiconductor device incorporating first and second transistors to provide a voltage from a travel adapter, a third transistor for ground voltage, and a fourth transistor to receive a second voltage from an inductor, allowing for both direct and switching charging methods to be implemented within a single charger, reducing size and heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If separate direct charger and switching charger are implemented, then charging efficiency is improved, but device size increases
Solution Approach 1:
The patent combines direct charging circuitry and switching charging circuitry into a single integrated charger device. The controller selectively activates either the direct charging path or switching charging path based on battery conditions, merging two separate charging methods into one unified system that maintains high charging efficiency while reducing overall device size.
Solution Approach 2:
The charger is designed with multi-functionality to perform both direct charging and switching charging operations. The same device can adaptively switch between charging modes depending on battery voltage levels and charging requirements, making a single charger capable of handling various charging scenarios that previously required separate dedicated chargers.
2Use of energy by moving object
If separate direct charger and switching charger are implemented, then charging efficiency is improved, but heat generation increases
Solution Approach 1:
The charger dynamically switches between direct charging mode and switching charging mode based on real-time battery conditions. The controller monitors battery voltage and automatically selects the appropriate charging path, enabling the system to adapt its operating characteristics to minimize heat generation while maintaining charging efficiency throughout the charging process.
Solution Approach 2:
The system changes operational parameters by switching between two distinct charging modes. Direct charging provides high efficiency with lower heat generation during certain battery states, while switching charging is activated during other states. This parameter change strategy allows the charger to optimize the balance between charging efficiency and heat generation dynamically.
3Productivity
If direct charging method is used, then charging speed is improved, but voltage control capability deteriorates
Solution Approach 1:
The charging process is segmented into different phases or modes. Direct charging is used for rapid charging phases where high current and speed are priorities, while switching charging is employed for phases requiring precise voltage control. This segmentation allows each charging method to be applied where it is most effective, combining the speed advantage of direct charging with the control advantage of switching charging.
Solution Approach 2:
The charger dynamically transitions between direct charging and switching charging modes based on battery voltage levels and charging requirements. This dynamic switching enables the system to exploit the high-speed advantage of direct charging when appropriate while maintaining precise voltage control through switching charging when needed, optimizing both charging speed and voltage control capability throughout the charging process.
Data Source
AI summary
The semiconductor device including first and second transistors configured to provide a first voltage to a first node, the first voltage being a voltage provided from a travel adaptor (TA), a third transistor connected in series with the second transistor and configured to provide a ground voltage to the first node, and a fourth transistor configured to receive a second voltage from a first inductor connected to the first node, and provide the second voltage to a second node as a third voltage for charging a battery connected thereto may be provided.