Adaptive Charger Switch Control for Fast Charging
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Solution Overview
Problem
Mobile computing devices face challenges with power consumption and charging speed, and existing power supplies are not adaptable to handle the varying power requirements of different devices, necessitating multiple chargers for each device.
Innovation Solution
An adaptive charging circuit that selectively activates and toggles control switches based on input current and voltage, allowing the charger to operate in different power modes to efficiently handle a range of power inputs from various power supplies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a high power supply is used to charge mobile devices, then charging speed is improved, but power consumption increases and compatibility with low power devices is lost
Solution Approach 1:
The charger dynamically switches between high power mode and low power mode based on the connected device's requirements. The system activates different switch groups (first switch group for high power, second switch group for low power) to adapt the output characteristics in real-time, resolving the contradiction between charging speed and device compatibility
Solution Approach 2:
The charger changes its output parameters (power level, voltage, current) based on the connected device. By detecting device requirements and adjusting operational parameters through control logic, the system can provide high power for fast charging when needed and low power for compatibility with smaller devices
2Adaptability or versatility
If multiple power supplies are used to accommodate different devices, then adaptability is improved, but device complexity and portability are worsened
Solution Approach 1:
The charger is designed as a universal power supply that can charge multiple types of devices (smartphones, tablets, laptops, media players) with a single unit. By integrating multiple switch groups and control logic, one charger performs the functions that previously required multiple separate power supplies, reducing complexity and improving portability
3Adaptability or versatility
If multiple power supplies are transported for different devices, then compatibility is improved, but weight and portability are worsened
Solution Approach 1:
The patent merges the functionality of multiple separate power supplies into a single unified charger. By combining high power and low power capabilities in one device, the total weight is reduced compared to transporting multiple separate power supplies, while maintaining compatibility with all device types
4Adaptability or versatility
If a unified charger handles both high power and low power devices, then adaptability is improved, but power loss and efficiency are worsened
Solution Approach 1:
The charger dynamically activates only the necessary switch group based on the connected device's power requirements. When a low power device is connected, only the second switch group is activated; when a high power device is connected, the first switch group is activated. This dynamic switching minimizes energy loss by avoiding unnecessary power conversion and heat generation
Data Source
AI summary
The embodiments discussed herein relate to systems, methods, and apparatus for providing a charger capable of adaptively handling a range of power inputs. The charger can selectively activate different control switches within the charger in order to more efficiently use current supplied to the charger. When a low power input is provided to the charger, the charger can reduce the number of active control switches being used to provide a voltage output from the charger. In this way, the capacitance required to toggle the control switches can be reduced. When a high power input is provided to the charger, the number of active control switches can be increased in order to increase a total amount of charge that can be provided from the charger, thereby reducing charge times for batteries.