Feed-Forward Capacitor Network for Voltage Divider Frequency Response
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Voltage dividers in semiconductor devices, such as flash memories, face degradation in frequency response and electrical performance due to the need for multiple resistors in series to handle high voltages, leading to increased delay and reduced accuracy in monitoring output voltages.
Innovation Solution
Incorporating a feed-forward capacitor network in the voltage divider circuit, where explicit capacitors are added across each pair of diffused resistors, each in its own well, to improve the frequency response and reduce phase delay, allowing for better AC and DC performance without additional fabrication steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple resistors are connected in series to handle high voltages, then the voltage handling capability is improved, but the frequency response degrades and electrical performance suffers
Solution Approach 1:
The patent divides the single high-voltage resistor into multiple lower-voltage resistors connected in series, each operating within its optimal voltage range. This segmentation allows the voltage divider to handle high voltages while maintaining better frequency response characteristics compared to a single resistor, as each segment contributes to the overall performance without the drawbacks of excessive voltage stress on one component.
2Strength
If multiple resistors are connected in series to handle high voltages, then the voltage handling capability is improved, but the delay increases and accuracy decreases
Solution Approach 1:
The patent optimizes the resistance values and ratios of the individual resistors in the series connection to maintain accurate voltage division ratios across the high voltage range. By carefully selecting and adjusting the parameters (resistance values) of each segment, the system achieves both high voltage handling capability and precise voltage monitoring accuracy, compensating for the cumulative effect of multiple resistors.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The feed-forward capacitor network enhances the frequency response and reduces delay, maintaining accurate voltage monitoring across a wide range of voltages, thereby improving the overall performance and accuracy of the voltage regulator system.
Implementation Method 1
a first capacitor having a first terminal and a second terminal, wherein the first terminal is coupled to the input node, and wherein the second terminal is coupled to another node such that the at least one capacitor is in parallel with at least a portion of the one or more diffused resistors in series
Data Source
AI summary
A voltage divider of a voltage regulator system is disclosed utilizing divided diffused resistors. In one embodiment, a feed-forward capacitor network is connected across the resistors and the voltage divider output. The feed-forward capacitor network allows the output to rise and fall quickly with a change in the voltage divider input. Accordingly, an improved frequency response should be obtained utilizing divided diffused resistors.