Dynamic Voltage Scaling in Semiconductor Power Management
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Solution Overview
Problem
Semiconductor devices in battery-operated and low-power devices face challenges in managing power consumption efficiently, particularly in varying operating voltages to optimize performance and reduce energy usage.
Innovation Solution
A power management system within the semiconductor device that includes frequency control registers, mapping registers, voltage setting registers, and a power management unit, which work together to dynamically adjust the operating voltage based on required frequency and environmental parameters, using a voltage regulator to set the optimal voltage levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If operating voltage is increased to improve performance, then processing speed and functionality are improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic voltage scaling by making the operating voltage adjustable and variable based on operational requirements. The system transitions from a fixed voltage architecture to a dynamic one where voltage can be scaled up during high-performance tasks and scaled down during low-activity periods, resolving the contradiction between maintaining high processing speed and reducing power consumption.
Solution Approach 2:
The patent changes the operating voltage parameter dynamically based on workload conditions. By monitoring system state and adjusting the voltage parameter accordingly, the system achieves high processing speed when needed while minimizing power consumption during normal operation, directly addressing the technical contradiction.
2Use of energy by moving object
If operating voltage is decreased to reduce power consumption, then energy usage is reduced, but performance deteriorates
Solution Approach 1:
The system employs dynamic voltage scaling that adjusts operating voltage based on real-time performance requirements. When high processing speed is needed, voltage is increased; when power savings are prioritized, voltage is decreased. This dynamic adaptation resolves the contradiction by making performance degradation conditional rather than constant.
Solution Approach 2:
The patent implements periodic monitoring and adjustment of operating voltage based on system state. The voltage is not statically reduced but is periodically evaluated and adjusted according to current workload, ensuring that power consumption is minimized while maintaining adequate performance when required.
3Use of energy by moving object
If voltage regulation is made more precise to optimize power consumption, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements a self-regulating voltage control system that automatically adjusts operating voltage based on internal system state monitoring. The system serves itself by detecting performance requirements and autonomously selecting appropriate voltage levels without requiring complex external control mechanisms, thus improving energy efficiency while limiting complexity growth.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor system performance and power consumption, then use this information to automatically adjust voltage levels. This closed-loop control achieves precise voltage regulation and optimized energy efficiency while keeping the control architecture manageable through standardized feedback pathways.
Data Source
AI summary
Briefly, a method an apparatus of a power management system of a semiconductor device capable of managing a power consumption of the semiconductor device by varying an operating voltage of the semiconductor device according to a voltage value based on a reference number.