Memory Device Voltage Control via Clock Frequency
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Solution Overview
Problem
Conventional memory devices cannot increase processing speed as their internal supply voltage remains constant, independent of the operation voltage applied, preventing the adjustment of internal supply voltage using external signals.
Innovation Solution
A control circuit and voltage regulator circuit in a memory device that adjusts the internal supply voltage based on the clock frequency, tuning it down during frequency-dropping states and up during frequency-elevating states, using a control signal generated from the clock signal to optimize performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the internal supply voltage of a memory device is kept constant, then the device structure is simple and reliable, but the processing speed cannot be increased
Solution Approach 1:
The patent applies dynamics by transitioning from a static constant voltage supply to a dynamic voltage adjustment mechanism. The voltage regulator circuit continuously monitors the clock signal frequency and automatically adjusts the internal supply voltage accordingly, enabling the memory device to adapt its operating voltage in real-time based on performance requirements.
Solution Approach 2:
The patent implements feedback through a closed-loop control system where the control circuit monitors the clock signal frequency and provides feedback to the voltage regulator circuit. This feedback mechanism enables automatic voltage adjustment based on the actual operating conditions, resolving the contradiction between speed enhancement and control complexity.
2Productivity
If the internal supply voltage is adjusted dynamically, then the processing speed can be increased, but the device complexity increases
Solution Approach 1:
The patent applies self-service by designing an autonomous voltage adjustment system that operates without external intervention. The control circuit automatically detects clock frequency changes and triggers appropriate voltage adjustments through the voltage regulator circuit, eliminating the need for manual control or complex external voltage management systems.
Solution Approach 2:
The patent utilizes parameter changes by dynamically modifying the supply voltage parameter in response to clock frequency variations. The control circuit maps different clock frequency ranges to corresponding optimal voltage levels, enabling automatic parameter adjustment that enhances processing speed while maintaining manageable device complexity through predefined voltage-frequency relationships.
3Speed
If the internal supply voltage is increased, then the processing speed improves, but power consumption increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the supply voltage parameter based on actual processing requirements. Instead of maintaining a constantly high voltage, the system optimizes voltage levels according to clock frequency changes, thereby reducing unnecessary power consumption while still achieving required processing speeds when needed.
Solution Approach 2:
The patent implements periodic action through continuous monitoring and adjustment cycles. The control circuit periodically evaluates the clock signal frequency and adjusts the supply voltage accordingly, creating a rhythm of voltage adjustment that optimizes the balance between processing speed and power consumption based on varying operational demands.
Data Source
AI summary
A control circuit, a memory device and a voltage control method thereof are provided. The memory device includes a memory cell, a voltage regulator circuit and the control circuit. The control circuit receives a clock signal, and determines a clock frequency of the clock signal so as to generate a control signal. An operation voltage is converted into an internal supply voltage for supplying the control circuit by the voltage regulator circuit according to the control signal.