Power Management Circuitry for Voltage Stabilization
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Solution Overview
Problem
Powered electronic cards face issues due to voltage fluctuations from their power sources, where initial high voltage can damage circuitry and decreasing voltage may become too low for proper functioning.
Innovation Solution
The implementation of power management circuitry that selectively routes power through a voltage protection path or a direct voltage path based on monitored voltage levels, ensuring that the voltage remains within a safe operating range for the card's circuitry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the battery supplies power directly to the circuitry, then the card can operate with simple power delivery, but the voltage may exceed the maximum operating voltage for the circuitry when the battery is freshly installed
Solution Approach 1:
The patent introduces a power management circuit as an intermediary component between the battery and the card circuitry. This circuit includes voltage monitoring functionality that detects battery voltage levels and selectively connects the battery to the circuitry only when the voltage is within the safe operating range, thereby preventing voltage damage while maintaining operational functionality.
2Duration of action of moving object
If the battery is allowed to discharge fully to maximize operational time, then the card can operate longer, but the voltage may drop below the minimum voltage required for proper circuitry function
Solution Approach 1:
The power management circuit incorporates voltage monitoring that continuously tracks the battery voltage level. When the voltage drops below the minimum threshold required for proper circuitry operation, the monitoring circuit detects this condition and disconnects the battery from the circuitry, preventing malfunction while maximizing the usable operational time of the card.
3Reliability
If a voltage protection circuit is added to manage battery voltage, then the circuitry is protected from voltage damage, but the device complexity increases
Solution Approach 1:
The power management circuit is designed to perform multiple functions within a single integrated component: it monitors battery voltage levels, selectively connects/disconnects the battery from the circuitry based on voltage thresholds, and protects the circuitry from both over-voltage and under-voltage conditions. This multi-functionality reduces the need for separate protection circuits and minimizes overall device complexity.
Data Source
AI summary
A card with power management circuitry is provided. A card may have circuitry contained therein (e.g., a processor) that may have a maximum operating voltage. The card may include a power source (e.g., a battery) that provides power ranging in voltage from a maximum power source voltage to a minimum power source voltage. The maximum power source voltage is greater than the maximum operating voltage. Power management circuitry is provided to manage the power received from the power source such that the voltage provided to the circuitry (e.g., processor) does not exceed the maximum operating voltage.