In-Line Drive-Sense Circuit for Real-Time Motor Signal Feedback
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Solution Overview
Problem
Current data communication systems face challenges in efficiently processing and interpreting signals from sensors and actuators, particularly in managing the simultaneous driving and sensing of motor signals, which affects the accuracy and reliability of motor control and feedback mechanisms.
Innovation Solution
The implementation of in-line drive-sense circuits that can simultaneously drive and sense signals, enabling concurrent processing and feedback, thereby improving motor control and feedback mechanisms by integrating sensing and driving functions within a single circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate sensing and driving circuits are used for motor control, then the functions are clearly divided and easier to implement, but the system complexity increases and real-time monitoring accuracy decreases
Solution Approach 1:
The patent combines separate sensing and driving circuits into a single integrated drive-sense circuit. This circuit simultaneously performs both driving and sensing functions for the motor, reducing the number of components and interconnections while improving real-time monitoring accuracy and control reliability.
Solution Approach 2:
The drive-sense circuit is designed to perform multiple functions: it can drive the motor during actuation phases and sense the motor state during sensing phases. This multi-functional approach eliminates the need for separate dedicated circuits for each function, simplifying the overall system architecture.
2Productivity
If simultaneous driving and sensing is implemented, then real-time monitoring and feedback are improved, but signal interference and measurement precision deteriorate
Solution Approach 1:
The drive-sense circuit operates in periodic cycles, alternating between driving phases and sensing phases. During driving phases, the circuit applies control signals to the motor; during sensing phases, it measures the motor state. This time-division multiplexing approach allows simultaneous driving and sensing capabilities while preventing signal interference through sequential operation.
Solution Approach 2:
The circuit maintains continuous operation by seamlessly transitioning between driving and sensing phases. The periodic switching ensures that both driving and sensing functions are continuously performed without interruption, achieving real-time feedback while maintaining measurement precision through dedicated sensing intervals.
3Device complexity
If in-line drive-sense circuits are used, then the number of components is reduced and system simplicity increases, but the difficulty of detecting and measuring signals increases
Solution Approach 1:
The drive-sense circuit incorporates intermediary signal processing stages that condition and isolate the sensed signals from the driving signals. These intermediary circuits filter, amplify, and condition the weak sensor signals, making them easier to detect and measure while maintaining the integrated circuit architecture.
Solution Approach 2:
The patent replaces complex mechanical signal routing with electronic signal processing within the integrated circuit. The drive-sense circuit uses electronic switching and signal conditioning to manage the complexity of simultaneous driving and sensing, eliminating the need for complex mechanical connections and manual signal routing.
Data Source
AI summary
A rotating equipment system with in-line drive-sense circuit (DSC) electric power signal processing includes rotating equipment, in-line drive-sense circuits (DSCs), and one or more processing modules. The in-line DSCs receive input electrical power signals and generate motor drive signals for the rotating equipment. An in-line DSC receives an input electrical power signal, processes it to generate and output a motor drive signal to the rotating equipment via a single line and simultaneously senses the motor drive signal via the single line. Based on the sensing of the motor drive signal via the single line, the in-line DSC provides a digital signal to the one or more processing modules that receive and process the digital signal to determine information regarding one or more operational conditions of the rotating equipment, and based thereon, selectively facilitate one or more adaptation operations on the motor drive signal via the in-line DSC.