Adaptive Clocked Voltage Regulation for Fast Response and Low Ripple
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing voltage regulators face challenges in maintaining a stable output voltage due to slow response times, leading to fluctuations that can result in the output voltage being higher or lower than the target voltage.
Innovation Solution
The proposed solution involves a voltage regulator system that includes a clock generator and a voltage regulating system. This system adjusts the frequency of a clock signal based on a detection signal indicating when a boost voltage is within a specific voltage range, thereby generating a boost voltage with reduced ripple.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the voltage regulator uses a conventional clock signal frequency, then the circuit operation is simple, but the response speed is slow causing output voltage to deviate from target level
Solution Approach 1:
The voltage regulator monitors the output voltage level and uses this feedback information to dynamically adjust the clock signal frequency. When the output voltage deviates from the target level, the regulator modifies the frequency to speed up the response, thereby resolving the contradiction between simple operation and fast response speed.
Solution Approach 2:
The clock frequency is made dynamic rather than fixed. The system transitions from a static operating mode to a dynamic one where the clock frequency automatically adapts based on the voltage regulation needs, enabling faster response without permanent complexity.
2Speed
If the voltage regulator increases clock signal frequency to improve response speed, then the response time decreases, but the ripple voltage increases
Solution Approach 1:
The system dynamically adjusts the clock frequency based on real-time voltage conditions. During transient states when voltage correction is needed, the frequency increases to improve response. Once stability is achieved, the frequency returns to normal levels, minimizing ripple voltage. This dynamic adaptation resolves the contradiction between response speed and ripple generation.
Solution Approach 2:
The voltage regulator employs periodic monitoring and adjustment of the clock frequency. Instead of maintaining high frequency continuously, it uses periodic feedback to activate high-frequency operation only when voltage deviation is detected, thereby achieving fast response when needed while minimizing ripple during normal operation.
3Stability of the object's composition
If the voltage regulator continuously monitors and adjusts voltage, then the voltage stability is improved, but the energy consumption increases
Solution Approach 1:
The voltage regulator performs periodic monitoring and adjustment operations rather than continuous operation. It monitors voltage at specific intervals and only activates adjustment mechanisms when deviations are detected, thereby maintaining voltage stability while reducing unnecessary energy consumption during normal stable operation.
Solution Approach 2:
The system uses the existing voltage fluctuations and natural operating cycles to trigger regulation actions. Instead of continuous active monitoring, the regulator leverages the system's own operational characteristics to initiate corrections only when needed, reducing energy consumption while maintaining stability.
Data Source
AI summary
An electronic device according to an embodiment includes a clock generator generating a first clock signal having a first frequency, and a voltage regulating system configured to receive the first clock signal, receive a detection signal indicating that a boost voltage is within a first voltage range, adjust the first frequency of the first clock signal to generate a second clock signal having a second frequency based on a period during which the detection signal is maintained at a constant level, and generate the boost voltage based on the second clock signal.