Amplitude Detection Circuit Using Offset Threshold Signals
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Solution Overview
Problem
Existing electronic circuits, particularly microcontrollers, require a large chip surface area to measure and control the amplitude of periodic signals, which is inefficient and not optimal for miniaturization.
Innovation Solution
An electronic circuit design that generates multiple offset voltage signals, converts them into digital signals based on threshold crossings, and determines the amplitude range using flip-flops and logic gates, allowing for reduced chip surface area and efficient amplitude control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional circuits are used to measure and control oscillation amplitude, then reliable amplitude measurement and control is achieved, but large chip surface area is required
Solution Approach 1:
The circuit divides the amplitude measurement range into multiple discrete ranges (first amplitude range, second amplitude range, third amplitude range). Each range is detected by specific combinations of flip-flops and logic gates, allowing the circuit to determine amplitude with sufficient precision while using a segmented, modular approach that reduces overall circuit complexity and chip area compared to continuous measurement methods.
2Device complexity
If conventional amplitude measurement circuits are used, then accurate amplitude control is achieved, but device complexity increases
Solution Approach 1:
The circuit uses dynamic flip-flops that are clocked by the periodic signal to automatically track and respond to amplitude changes. The flip-flops transition between states based on amplitude thresholds, providing adaptive amplitude control without requiring complex static circuitry. This dynamic approach maintains reliability while reducing structural complexity.
Solution Approach 2:
The circuit uses the periodic signal itself as the clock source for the flip-flops, eliminating the need for external clock circuits. The amplitude measurement and control process is self-contained, using the signal being measured to drive the measurement mechanism, thereby reducing overall device complexity while maintaining consistent and reliable operation.
Data Source
AI summary
The present description relates to an electronic circuit comprising a first circuit configured to generate, based on a first periodic analog signal, a plurality of second signals having offset voltage levels, a second circuit configured to generate third periodic digital signals according to respective crossings, by the second signals, of at least one threshold, and a third circuit configured to determine an amplitude range in which the first periodic analog signal is located, according to a number of the third periodic digital signals.