Dynamic Voltage Regulator Tracking Critical-Path Frequency
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Solution Overview
Problem
Existing voltage regulators face challenges in balancing power efficiency and response time, as they often struggle to dynamically adjust voltage and frequency in response to changing load conditions.
Innovation Solution
A voltage regulator with dynamic voltage and frequency tracking is implemented, featuring a control loop, voltage comparator, and target voltage generator. This system adjusts the target voltage based on the frequency difference between the target frequency and the critical-path-related frequency, which depends on the output voltage, thereby improving power efficiency and response time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the voltage regulator uses a fixed target voltage for regulation, then the circuit design is simple, but the power efficiency and response time deteriorate under changing load conditions
Solution Approach 1:
The patent implements dynamic voltage and frequency tracking by making the target voltage variable rather than fixed. The target voltage generator adjusts the target voltage based on the frequency difference between the target frequency and the critical-path-related frequency, allowing the system to adapt to changing load conditions and optimize power efficiency dynamically.
Solution Approach 2:
The patent changes the parameter of target voltage from a constant value to a dynamically adjustable value. By modifying the target voltage based on frequency differences, the system can optimize its operation under different load conditions, improving power efficiency without excessive complexity.
2Device complexity
If the voltage regulator uses a fixed target voltage for regulation, then the circuit design is simple, but the response time worsens under changing load conditions
Solution Approach 1:
The patent implements dynamic voltage and frequency tracking by making the target voltage variable rather than fixed. The target voltage generator adjusts the target voltage based on the frequency difference between the target frequency and the critical-path-related frequency, allowing the system to adapt to changing load conditions and optimize response time dynamically.
Solution Approach 2:
The patent uses feedback by comparing the critical-path-related frequency with the target frequency and adjusting the target voltage accordingly. This feedback mechanism enables the system to respond to changing load conditions and maintain optimal performance with improved response time.
3Use of energy by moving object
If the voltage regulator dynamically adjusts target voltage based on frequency difference, then power efficiency and response time are improved, but the device complexity increases
Solution Approach 1:
The patent changes the parameter of target voltage from a constant value to a dynamically adjustable value. By modifying the target voltage based on frequency differences, the system can optimize its operation under different load conditions, improving power efficiency without excessive complexity.
Solution Approach 2:
The target voltage generator serves multiple functions: it generates the target voltage for the voltage comparator, tracks frequency differences, and dynamically adjusts the target voltage to optimize both power efficiency and response time. This multi-functionality reduces the need for separate dedicated circuits.
4Loss of time
If the voltage regulator dynamically adjusts target voltage based on frequency difference, then response time is improved, but the device complexity increases
Solution Approach 1:
The patent implements dynamic voltage and frequency tracking by making the target voltage variable rather than fixed. The target voltage generator adjusts the target voltage based on the frequency difference between the target frequency and the critical-path-related frequency, allowing the system to adapt to changing load conditions and optimize response time dynamically.
Solution Approach 2:
The target voltage generator serves multiple functions: it generates the target voltage for the voltage comparator, tracks frequency differences, and dynamically adjusts the target voltage to optimize both power efficiency and response time. This multi-functionality reduces the need for separate dedicated circuits.
Data Source
AI summary
A voltage regulator with dynamic voltage and frequency tracking is shown. The voltage regulator has power switches converting an input voltage into an output voltage, a control loop, a voltage comparator, and a target voltage generator. The control loop is coupled to the power switches to control the power switches to perform voltage regulation. The voltage comparator compares the output voltage to the target voltage to generate a first control signal to control the control loop. The target voltage generator generates the target voltage for the voltage comparator based on the frequency difference between the target frequency and the critical-path-related frequency, wherein the critical-path-related frequency depends on the output voltage. The power efficiency and response time are improved.