Logic board for variable speed drive
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Solution Overview
Problem
Existing HVAC&R systems lack an electronic identification system for logic boards, requiring manual observation to determine the type and revision of logic boards, which increases the likelihood of misidentification and maintenance time.
Innovation Solution
An electronic identification system for logic boards, incorporating a configuration block with resistors and a control system that generates data indicative of the board's identity through voltage differentials, allowing for quick and accurate identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual observation is used to identify logic boards, then no additional electronic components are required, but identification time increases and misidentification risk increases
Solution Approach 1:
The patent replaces manual visual observation with an electronic identification system that uses electrical signals to automatically identify logic board type and revision. The control system reads identification information from the logic board through electrical connections, eliminating the need for operators to manually observe and record board characteristics.
Solution Approach 2:
The logic board includes built-in identification circuitry that automatically provides identification information when queried by the control system. The board self-identifies its type and revision through electrical signals without requiring external manual inspection or interpretation.
2Reliability
If manual observation is used to identify logic boards, then device complexity is minimized, but reliability of identification decreases
Solution Approach 1:
The identification system is segmented into distinct functional components: identification circuitry embedded in the logic board, communication interfaces, and control system processing. This segmentation allows each component to perform its specific function reliably while keeping the overall system manageable.
Solution Approach 2:
The patent introduces an intermediary electronic identification system that mediates between the logic board and the operator. This intermediary automatically queries and retrieves identification information, eliminating direct human observation and reducing errors while managing complexity through automated processes.
3Measurement precision
If electronic identification system is implemented, then identification accuracy improves, but manufacturing complexity increases
Solution Approach 1:
The identification circuitry is merged directly into the logic board design, sharing physical space and electrical infrastructure with other board components. This integration reduces the need for separate identification hardware and simplifies the manufacturing process by incorporating identification functionality into existing board fabrication processes.
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
Facilitates accurate identification of logic boards, reducing maintenance time and costs by providing electronic means to determine the type and revision of logic boards, thus enabling appropriate maintenance procedures.
Implementation Method 1
One or more pairs of resistors of the plurality of resistors is configured to establish a voltage differential between the power source and a ground point
Data Source
AI summary
Embodiments of the present disclosure relate to an electronic identification system of a logic board for use in variable speed drives. Specifically, the present disclosure relates to a logic board for a variable speed drive having a configuration block that includes a plurality of resistors, a control system communicatively coupled to and configured to receive a signal from the configuration block, where the control system is configured to decode the signal to generate data indicative of an identity of the logic board, and a communication interface coupled to the control system, where the communication interface is configured to provide the data indicative of the identity of the logic board to an operator.