Multi-Voltage Charger with Dynamic Output Control
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Solution Overview
Problem
Existing battery-powered device chargers typically provide a fixed voltage, limiting rapid charging capabilities and causing compatibility issues when charging multiple devices with different voltage requirements, as they are often restricted to AC power sources and cannot accommodate device-specific voltage outputs for faster charging.
Innovation Solution
A receptacle assembly and portable charger system that includes multiple voltage output receptacles with a control circuit and variable output converter circuits to provide a default voltage and a device-selected voltage greater than the default, allowing for adaptable charging based on the device's requirements, using either AC or DC power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed voltage charger is used, then device compatibility is simplified, but rapid charging capability is limited
Solution Approach 1:
The charger dynamically adjusts its output voltage based on the connected device's requirements. The system transitions from a static fixed-voltage design to a dynamic multi-voltage design where the output can switch between different voltage levels (5V, 9V, 12V) depending on the device's charging capabilities, thereby enabling rapid charging when appropriate devices are connected while maintaining broad compatibility
Solution Approach 2:
The charger changes its operating voltage parameter to match the device being charged. By implementing multiple voltage output modes (5V standard, 9V rapid charge, 12V super rapid charge), the system can alter its electrical parameters to optimize charging speed for different device types while maintaining universal compatibility through the ability to default to standard voltage levels
2Adaptability or versatility
If multiple fixed voltage receptacles are provided, then device compatibility is improved, but system complexity increases
Solution Approach 1:
A single receptacle is designed to perform multiple voltage output functions rather than requiring separate receptacles for each voltage level. The universal charger can detect the device type and automatically provide the appropriate voltage (5V, 9V, or 12V) through the same physical interface, reducing system complexity while maintaining broad device compatibility
Solution Approach 2:
Multiple voltage output capabilities are merged into a single charger unit. Instead of having separate chargers or receptacles for different voltage levels, the system combines all voltage output functions into one intelligent device that can adapt its output based on the connected device's requirements, thereby simplifying the overall system architecture
3Reliability
If AC power sources are used, then charging stability is ensured, but portability and flexibility are reduced
Solution Approach 1:
The charging system is segmented into multiple power source options (AC power input and DC vehicle power input) rather than relying solely on AC power. This segmentation allows users to choose the appropriate power source based on their environment, maintaining charging stability when AC is available while providing portability and convenience when vehicle power is accessible
Solution Approach 2:
The charger acts as an intermediary device that can interface with different power sources (AC wall outlets and DC vehicle outlets). By incorporating dual power input capabilities, the system mediates between different power environments, ensuring stable charging operation regardless of whether the user is at home or in a vehicle, thereby enhancing both reliability and convenience
Data Source
AI summary
A battery charging apparatus for charging batteries of fixed voltage charge receiving batteries and flexible voltage charge receiving batteries. A wall receptacle charger outlet, an “all-in-one” vehicle or home charger, a hands-free docking station charger, a wall mountable USB charging strip and a holder for multiple charger receiving devices that includes a charger are disclosed.


