Bias Setting Device Dynamic Voltage Calibration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic components often require calibration to achieve optimal performance, but existing calibration methods can be inefficient due to the unknown initial condition or response to incremental steps, leading to extended calibration periods until a satisfactory bias condition is found.
Innovation Solution
A biasing device and method that dynamically adjust the bias voltage by incrementing it in controlled steps, using a state adjusting device and response classifier to compare voltage drops against thresholds, ensuring the bias voltage equals a predetermined level efficiently, thereby reducing calibration time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If constant incremental steps are used in calibration procedure, then the calibration can be performed systematically, but the calibration time is extended because the electronic component's response to each step is unknown
Solution Approach 1:
The patent applies dynamics by making the bias voltage adjustment steps variable rather than constant. The state adjusting device dynamically changes the step size based on the component's response: using larger steps when the component is far from the target bias condition and smaller steps when approaching the target, thereby reducing total calibration time while maintaining precision.
Solution Approach 2:
The patent implements feedback by continuously monitoring the voltage drop across the bias-able device and using this information to adjust subsequent bias voltage steps. The response classifier compares the measured voltage drop with threshold values to determine whether to increase or decrease the bias voltage, creating a closed-loop control system that accelerates calibration.
2Productivity
If the bias voltage is increased rapidly to reduce calibration time, then productivity improves, but the risk of overshooting the target bias condition and damaging the component increases
Solution Approach 1:
The patent applies partial action by using different step sizes at different calibration stages. Large bias voltage steps are used when the component is far from the target condition to quickly close the gap, while smaller steps are used near the target to prevent overshooting. This variable step approach balances speed and safety.
Solution Approach 2:
The patent implements beforehand cushioning by establishing threshold values that act as safety margins before the target bias condition. The response classifier monitors whether the voltage drop is approaching these thresholds and reduces the adjustment step size accordingly, preventing excessive action that could damage the component.
3Measurement precision
If multiple comparison thresholds and incrementing steps are used, then the bias voltage can be precisely controlled, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the calibration range into multiple segments defined by threshold values. Each segment has associated incrementing step values, allowing precise control within each segment while keeping the overall system manageable through modular organization of thresholds and steps.
Solution Approach 2:
The patent implements parameter changes by varying the bias voltage increment steps based on the current operating point. The state adjusting device selects different step sizes from a set of predefined values depending on the voltage drop measurement, enabling precise control without requiring complex continuous adjustment mechanisms.
Data Source
AI summary
A biasing device can supply a bias voltage to bias-able element by coupling a bias circuit to the bias-able element, coupling a state adjusting device to the biasing circuit, configuring the state adjusting device to 1) increase an initial biasing voltage by a first amount when an intermediate voltage threshold exceeds a voltage drop across the bias-able element and 2) increment the increased initial bias voltage by a second amount, where the second amount is a fraction of the first amount, until the voltage drop across the bias-able element substantially equals a predetermined bias voltage. The bias circuit of the biasing device can include a variable resistance, which is controlled by the state adjusting device and configured to vary the biasing voltage, in series with the bias-able element. The variable resistance can include a first variable resistance coupled in series to a first terminal of the bias-able element and a second variable resistance coupled in series to a second terminal of the bias-able element.