Adaptive Drive Voltage Selector Circuit for Power Efficiency
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Solution Overview
Problem
Information handling systems face inefficiencies in power management due to varying power demands, as existing systems lack adaptive mechanisms to dynamically adjust drive voltages based on current load, leading to suboptimal power consumption and performance.
Innovation Solution
A power circuit with a drive voltage selector and threshold current detection circuit that compares load current to a threshold setting, selecting between multiple input voltage sources to optimize drive voltage output, switching between 5V and 12V sources as needed to match power demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a fixed drive voltage is used in power management, then the system structure remains simple, but power consumption efficiency deteriorates under varying load conditions
Solution Approach 1:
The patent implements dynamic drive voltage adjustment by switching between 5V and 12V based on real-time load current detection. The system transitions from a static fixed voltage approach to a dynamic adaptive voltage system that automatically adjusts drive voltage levels according to actual power demands, thereby improving power consumption efficiency without requiring manual intervention
Solution Approach 2:
The power management circuit is designed to handle multiple voltage levels (5V and 12V) and adapt to different load conditions using a single integrated circuit. This multi-functional approach allows the same circuit to serve both low-power and high-power applications, improving energy efficiency while avoiding the need for separate dedicated circuits for each voltage level
2Use of energy by moving object
If adaptive drive voltage switching is implemented, then power consumption efficiency improves, but device complexity increases
Solution Approach 1:
The patent combines the drive voltage selector, threshold current detection circuit, and power output stage into a single integrated power management circuit. By merging these previously separate functions into one unified circuit, the patent achieves adaptive voltage switching to improve power efficiency while minimizing the increase in overall device complexity through functional integration
Data Source
AI summary
A method and circuit to output adaptive drive voltages within information handling systems is disclosed. According to one aspect of the disclosure, a method of outputting power within an information handling system can include sensing a load current of a power output stage operable to employ more than one drive voltage level. The method can also include comparing the load current to a threshold current setting, and selecting a first output drive voltage from a plurality of input drive voltages in response to comparing the load current to the threshold current setting. The method can also include coupling the first output drive voltage to the power output stage.