Adaptive VCO Frequency Calibration for Chip Voltage Tuning
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Solution Overview
Problem
Conventional frequency adjustment circuits are inefficient due to their inability to adaptively adjust operating frequencies and voltages based on chip quality, manufacturing processes, and other factors, leading to increased power consumption and the need for extensive stability testing to create 'frequency-voltage' tables.
Innovation Solution
An adaptive frequency adjustment circuit that dynamically adjusts the operating frequency and voltage of chips based on their quality, eliminating the need for 'frequency-voltage' tables and reducing power consumption by configuring higher voltages for lower-quality chips and lower voltages for higher-quality chips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional frequency adjustment circuits use fixed 'frequency-voltage' tables obtained through extensive stability testing, then all chips can work normally with consistent performance, but power consumption increases and testing workload is large
Solution Approach 1:
The patent implements dynamic frequency adjustment by introducing a frequency calibration module that continuously monitors and adjusts the operating frequency based on actual chip performance characteristics. Instead of relying on static pre-measured tables, the system adaptively calibrates frequency in real-time, allowing high-performance chips to operate at lower voltages while maintaining reliability.
Solution Approach 2:
The patent changes the operating parameters by introducing adaptive frequency calibration that modifies the frequency-voltage relationship based on actual chip measurements. The system measures actual operating frequency, compares it with target frequency, and dynamically adjusts parameters to optimize power consumption while ensuring all chips meet performance requirements.
2Measurement precision
If conventional circuits perform extensive stability testing to create comprehensive 'frequency-voltage' tables, then accurate operating parameters can be obtained, but the testing workload and time consumption increase significantly
Solution Approach 1:
The patent implements self-service through automated frequency calibration that performs measurements and adjustments without extensive external testing. The frequency calibration module autonomously measures actual operating frequency, calculates calibration values, and adjusts parameters, eliminating the need for manual stability testing of numerous chips to create comprehensive tables.
Solution Approach 2:
The patent applies preliminary action by performing frequency calibration during chip initialization or manufacturing process integration, rather than requiring extensive post-manufacturing stability testing. This preliminary calibration establishes accurate frequency-voltage relationships early, avoiding time-consuming testing campaigns.
3Reliability
If power supply voltage is increased to ensure all chips meet performance requirements, then reliability is improved, but power consumption increases unnecessarily for high-performance chips
Solution Approach 1:
The patent applies local quality by allowing different chips to operate at different optimized voltage levels based on their individual performance characteristics. High-performance chips can operate at lower voltages with sufficient headroom, while lower-performance chips receive higher voltages as needed, rather than uniformly increasing voltage for all chips.
Solution Approach 2:
The patent changes operating parameters dynamically by adjusting voltage and frequency based on actual chip performance measurements. The system calculates calibration values that optimize the frequency-voltage relationship for each chip, enabling high-performance chips to reduce voltage and power consumption while maintaining reliability.
4Stability of the object's composition
If power supply voltage is increased to compensate for transient response limitations, then continuous stable operation is ensured, but power consumption increases further
Solution Approach 1:
The patent implements dynamic response by enabling rapid frequency calibration and adjustment that can respond to transient load changes within microseconds. This dynamic capability replaces the need for continuously elevated voltage, allowing the system to maintain stability during transients through fast adaptation rather than sustained high power consumption.
Data Source
AI summary
The present disclosure provides an adaptive adjustment circuit in a computer chip having a voltage-controlled oscillator (VCO) and a processor. The adaptive adjustment circuit comprises a frequency difference acquisition module to generate a frequency difference signal based on a first difference between an oscillation frequency of the VCO and a target frequency. The adaptive adjustment circuit also includes a power module to supply a working voltage to the VCO and the processor, adjust the working voltage based on the frequency difference signal, and supply the adjusted working voltage to the VCO and the processor.