Amplifier Supply Voltage Control Using AGC State Feedback
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Solution Overview
Problem
Existing amplifier systems face challenges in managing supply voltage levels effectively, leading to undesirable characteristics such as sensitivity issues, bandwidth reduction, and increased bit error rates, especially when adjusting gain levels.
Innovation Solution
A system comprising a group of amplifier components, an automatic gain control (AGC) component, and a supply voltage controller, which determines a state value based on output signal analysis and adjusts supply voltage levels accordingly to optimize amplifier performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If supply voltage levels are reduced to lower power consumption, then energy efficiency improves, but sensitivity and bandwidth deteriorate
Solution Approach 1:
The patent implements dynamic supply voltage control that adjusts voltage levels in real-time based on the operating state of the amplifier. The supply voltage controller receives state information from the automatic gain control component and dynamically switches between different voltage levels (first supply voltage level for high gain, second supply voltage level for low gain), allowing the system to optimize power consumption while maintaining sensitivity when needed.
Solution Approach 2:
The patent changes the supply voltage parameter based on the gain state of the amplifier. When the automatic gain control component determines a high gain state, the supply voltage controller provides a first (higher) supply voltage level to maintain sensitivity and bandwidth. When the gain state is low, a second (lower) supply voltage level is provided to reduce power consumption, thus optimizing the voltage parameter according to operational requirements.
2Reliability
If gain levels are adjusted to improve sensitivity, then sensitivity improves, but bandwidth and bit error rate performance deteriorate
Solution Approach 1:
The system dynamically adjusts both gain and supply voltage based on operating conditions. The supply voltage controller receives state information from the automatic gain control component and switches supply voltage levels accordingly, ensuring that when high gain is applied for sensitivity, the supply voltage is also increased to maintain bandwidth and prevent degradation of bit error rate performance.
Solution Approach 2:
The patent implements a feedback mechanism where the supply voltage controller receives state information from the automatic gain control component about the current gain level. This feedback loop allows the system to coordinate gain adjustments with corresponding supply voltage adjustments, ensuring that sensitivity improvements do not come at the cost of bandwidth degradation or increased bit error rates.
3Reliability
If supply voltage levels are increased to improve performance, then sensitivity and bandwidth improve, but power consumption increases
Solution Approach 1:
The patent implements dynamic supply voltage control that adjusts voltage levels in real-time based on the operating state of the amplifier. The supply voltage controller receives state information from the automatic gain control component and dynamically switches between different voltage levels (first supply voltage level for high gain, second supply voltage level for low gain), allowing the system to optimize power consumption while maintaining sensitivity when needed.
Solution Approach 2:
The patent changes the supply voltage parameter based on the gain state of the amplifier. When the automatic gain control component determines a high gain state, the supply voltage controller provides a first (higher) supply voltage level to maintain sensitivity and bandwidth. When the gain state is low, a second (lower) supply voltage level is provided to reduce power consumption, thus optimizing the voltage parameter according to operational requirements.
4Stability of the object's composition
If automatic gain control is implemented to maintain output levels, then output signal stability improves, but supply voltage management complexity increases
Solution Approach 1:
The patent combines the supply voltage control function with the existing automatic gain control component. The supply voltage controller receives state information from the automatic gain control component and coordinates voltage adjustments with gain adjustments, merging two control functions into a coordinated system that maintains output stability while managing supply voltage efficiently without requiring completely separate control mechanisms.
Data Source
AI summary
Adjustments to supply voltage level associated with an amplifier can be controlled based on a state associated with an automatic gain control (AGC) component associated with the amplifier. The AGC component can determine the AGC state based on an output signal associated with the amplifier component. Supply voltage controller component (SVCC) of an amplifier regulator can control a supply voltage level of a supply voltage supplied to the amplifier component by the amplifier regulator based on a state value indicative of the AGC state and received from AGC component, and a threshold supply voltage level associated with a threshold state value. If the state value does not satisfy threshold state value, SVCC adjusts or maintains supply voltage at the threshold supply voltage level. If the state value satisfies threshold state value, SVCC adjusts or maintains supply voltage at a desired supply voltage level that corresponds to the AGC state.