Sensor Information Output Apparatus Shared Power Supply Circuit
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Solution Overview
Problem
Existing sensor and interface circuit systems face challenges in maintaining redundancy while minimizing circuit size, particularly when multiple sensors are used, as separate power supply circuits for synchronization signals increase the overall circuit area.
Innovation Solution
A sensor information output apparatus with multiple first power supply circuits for generating operating voltages and a single second power supply circuit for synchronization signals, shared among multiple receivers, which also includes switches to interrupt voltage supply in case of abnormalities, allowing for compact integration and reduced size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate second power supply circuits are provided for each receiver system to ensure redundancy, then reliability is improved, but circuit area increases
Solution Approach 1:
The second power supply circuit is designed to serve multiple receivers simultaneously. A single second power supply circuit generates signal voltages that are distributed to multiple receivers through transmission lines, eliminating the need for separate second power supply circuits for each receiver while maintaining system functionality and redundancy
Solution Approach 2:
Multiple second power supply circuits are merged into a single shared second power supply circuit. The patent combines the functions of generating signal voltages for multiple receivers into one common power supply unit, reducing the total circuit area while preserving the redundant sensor systems
2Reliability
If multiple first power supply circuits are provided for multiple sensor systems, then reliability is improved, but device complexity increases
Solution Approach 1:
The power supply system is segmented into two distinct functional parts: first power supply circuits (one per receiver) that generate operating voltages, and a single second power supply circuit that generates signal voltages. This segmentation allows each part to be optimized independently, reducing overall complexity while maintaining redundancy
Data Source
AI summary
A sensor information output apparatus includes a plurality of first power supply circuits, a single second power supply circuit, and a plurality of receivers. The first power supply circuits are configured to generate operating voltages of digital sensors of a plurality of systems. The number of the first power supply circuits is equal to the number of the plurality of systems. The second power supply circuit is configured to generate a signal voltage for synchronizing signals. The receivers are configured to supply the digital sensors with the synchronizing signals including the operating voltages and the signal voltage. The number of the receivers is equal to the number of the plurality of systems. The digital sensors are configured to supply the electric signals to an external circuit as sensor information.