Motor Control IC Integrating Feedback and Communication
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Solution Overview
Problem
Conventional motor control devices are limited in performance due to separate ICs for feedback signal obtaining, communication, and motor driving signal output sections, leading to increased size and power consumption.
Innovation Solution
A motor control device with a control section implemented by a single integrated circuit (IC) chip, incorporating feedback signal obtaining, communication, and motor driving signal output functions, allowing for reduced size and enhanced processing speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate ICs are used for feedback signal obtaining, communication, and motor driving signal output sections, then functional independence and reliability are improved, but device size and power consumption increase
Solution Approach 1:
The patent combines the feedback signal obtaining section, communication section, and motor driving signal output section into a single integrated control IC. This merging reduces the total number of separate components, thereby decreasing power consumption and device size while maintaining the necessary functional independence through internal signal routing and processing pathways.
Solution Approach 2:
The control IC is designed to perform multiple functions simultaneously - obtaining feedback signals, communicating with external devices, and generating motor driving signals. This multi-functional integration allows a single component to replace what would traditionally require multiple separate ICs, reducing overall power consumption while maintaining functional capabilities.
2Reliability
If separate ICs are used for feedback signal obtaining, communication, and motor driving signal output sections, then functional independence and reliability are improved, but device size increases
Solution Approach 1:
The patent combines the feedback signal obtaining section, communication section, and motor driving signal output section into a single integrated control IC. This merging reduces the total number of separate components, thereby decreasing device size while maintaining the necessary functional independence through internal signal routing and processing pathways.
3Adaptability or versatility
If multiple separate ICs are used for control functions, then functional modularity is improved, but processing speed and data communication efficiency deteriorate
Solution Approach 1:
The patent integrates multiple control functions into a single IC, eliminating the need for external signal routing between separate components. This reduces communication delays and improves processing speed, as all functions operate within the same integrated circuit with direct internal signal pathways.
4Adaptability or versatility
If multiple separate ICs are used for control functions, then functional modularity is improved, but data communication efficiency between sections deteriorates
Solution Approach 1:
The patent integrates the feedback signal obtaining section, communication section, and motor driving signal output section into a single IC. This eliminates external communication interfaces and signal transmission paths, thereby improving data communication efficiency and reducing potential information loss between sections.
Data Source
AI summary
The present invention improves performance of a motor control device. A slave device (90) includes: an inverter (73) configured to drive a motor (74); and a control section (10) configured to control the motor (74) via the inverter (73). The control section (10) includes: a feedback signal obtaining section configured to obtain a feedback signal indicative of a predetermined physical quantity corresponding to an operating state of the motor (74); a communication section (120) configured to communicate with a PLC (100); and a PWM signal output section (130) configured to supply a motor driving signal to the inverter (73). The control section (10) is implemented by a single IC chip.