Electronic Contact Lens Power Circuit with Movable Voltage Generators
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Solution Overview
Problem
Electronic contact lenses face challenges in managing varying power requirements due to scarce integrated circuit chip area and power resources, necessitating an efficient power supply circuit that can adapt to different operating modes and voltage demands.
Innovation Solution
A power supply circuit utilizing a DC to DC converter module with movable voltage generators and a central voltage generator, allowing for reconfiguration of power supply rails to meet different power requirements across various modes, reducing chip area and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple fixed voltage generators are used to meet varying power requirements, then power supply capability is improved, but chip area increases
Solution Approach 1:
The patent implements a dynamic power supply system where voltage generators can be selectively enabled or disabled based on operating mode. The system transitions from static fixed configurations to dynamic reconfiguration, allowing the same physical hardware to adapt to different power requirements by activating only the necessary voltage generators for each mode, thereby reducing the effective chip area in use while maintaining full power supply capability when needed.
Solution Approach 2:
The patent creates a universal power supply architecture where a single set of voltage generators can serve multiple functions across different operating modes. By designing the power supply system to be reconfigurable, the same hardware infrastructure supports both high-power and low-power modes, eliminating the need for separate dedicated generators for each mode and thus reducing overall chip area while maintaining versatility.
2Power
If power supply is optimized for high-power mode, then power output is improved, but power consumption in low-power mode increases
Solution Approach 1:
The system dynamically adjusts power supply configuration based on operational demands. In high-power mode, all voltage generators are activated to maximize power output. In low-power mode, the system selectively disables unnecessary voltage generators, reducing power consumption. This dynamic adaptation resolves the contradiction by ensuring that power consumption scales with actual power output requirements rather than remaining at maximum capacity.
Solution Approach 2:
The patent applies local quality by enabling different subsets of voltage generators in different regions of the power supply system based on operational mode. Rather than uniformly activating all power supply components, the system selectively activates only the necessary local power generation units, allowing high power output where needed while minimizing power consumption in low-demand scenarios.
3Device complexity
If fixed power supply configuration is used, then device complexity is reduced, but adaptability to different modes decreases
Solution Approach 1:
The patent introduces dynamic reconfiguration capability that allows the power supply system to adapt its configuration based on operational mode without requiring completely separate hardware for each mode. The system uses control logic to dynamically enable or disable specific voltage generators, providing mode flexibility while maintaining a relatively simple underlying hardware architecture that can be programmatically reconfigured.
Solution Approach 2:
The power supply system is designed as a universal platform that can serve multiple operating modes through selective activation of components. A single set of voltage generators can fulfill different power supply requirements by being configured in different combinations, reducing the need for multiple specialized circuits and thereby limiting device complexity while maintaining adaptability across modes.
Data Source
AI summary
An electronic contact lens. In some embodiments, the electronic contact lens includes a plurality of power-consuming circuits and a power supply circuit. The power supply circuit may be configured to distribute available power among two voltage domains in the electronic contact lens according to changing power requirements within the two voltage domains.