ADC Power Supply Feedback for Stable Conversion Voltage

Solution Overview

Problem

Analog-to-digital converters face reduced efficiency due to insufficient power supply during high power consumption operations, leading to dropped output voltage and performance degradation.

Innovation Solution

An analog-to-digital conversion system that includes an ADC generating a control signal to adjust the power supply's ability to provide supply current, stabilizing the voltage by increasing current during high power consumption states and reducing it during low power states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the power supply unit provides sufficient power to the analog-to-digital converter during high power consumption operations, then the supply voltage remains stable and ADC performance is maintained, but the power supply must continuously operate at high capacity increasing overall power consumption

Engineering Contradiction:

Improvesupply voltage stabilityVSAvoidoverall power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The power supply unit dynamically adjusts its current provision capability based on real-time operational states of the ADC. The controller receives state information from the ADC and modulates the power supply's current capacity accordingly, transitioning between high-current and low-current provision modes to match actual demand rather than maintaining constant high capacity

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system implements a feedback mechanism where the ADC's operational state information is fed back to the power supply controller. This feedback loop enables the controller to make informed decisions about current provision capability adjustment, ensuring the power supply adapts to actual ADC requirements and maintains voltage stability only when necessary

Inventive Principle:

Principle #23Feedback

2Use of energy by moving object

If the power supply unit cannot provide sufficient power during high power consumption operations, then overall power consumption is reduced, but the output voltage drops and ADC efficiency is reduced

Engineering Contradiction:

Improvepower consumptionVSAvoidADC conversion efficiency

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The power supply unit dynamically adjusts its current provision capability based on real-time operational states of the ADC. The controller receives state information from the ADC and modulates the power supply's current capacity accordingly, transitioning between high-current and low-current provision modes to match actual demand rather than maintaining constant high capacity

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the power supply's operational parameters (current provision capability) based on ADC state. By adjusting the current capability parameter in response to ADC operational requirements, the system ensures sufficient power delivery during critical conversion operations while reducing power consumption during lower-demand periods

Inventive Principle:

Principle #35Parameter changes

3Reliability

If the power supply continuously operates at high capacity to maintain voltage stability, then supply voltage remains stable, but power consumption increases when ADC does not require high power

Engineering Contradiction:

Improvesupply voltage stabilityVSAvoidexcessive power consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The power supply unit dynamically adjusts its current provision capability based on real-time operational states of the ADC. The controller receives state information from the ADC and modulates the power supply's current capacity accordingly, transitioning between high-current and low-current provision modes to match actual demand rather than maintaining constant high capacity

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The power supply system serves itself by using information about ADC operational needs to automatically adjust its own current provision capability. The controller monitors ADC state and self-regulates the power supply output, eliminating the need for external intervention or continuous high-capacity operation

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11509324B2Analog-to-digital conversion system for stabilizing supply voltage and method of the same

Publication Date: 2022.11.22 REALTEK SEMICON CORP

AI summary

An analog-to-digital conversion system includes an analog-to-digital converter and a power supply. The analog-to-digital converter is configured to convert an analog input signal to generate a digital output signal, and configured to generate a control signal according to a state of converting the analog input signal. The power supply is configured to provide a supply voltage to the analog-to-digital converter, and change the ability to provide the supply current of the power supply according to the control signal to stabilize the supply voltage.