Power Control Communication for UVLO Interruption Shutdown
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Solution Overview
Problem
Existing electrical devices face issues with erroneous operations due to momentary power interruptions, which can cause signal misinterpretation and incorrect functioning, especially when under voltage lockout (UVLO) functions are triggered.
Innovation Solution
An electrical device comprising a controlling unit, a power supplying unit, and a power controlling unit that perform command-based communication to manage power supply and interruption. The power controlling unit receives shutdown commands from the controlling unit and instructs the power supplying unit to interrupt power accordingly, preventing erroneous operations during momentary power interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If command-based communication is used between controlling unit and power controlling unit, then ease of operation is improved, but communication may fail during power interruptions
Solution Approach 1:
The controlling unit issues shutdown commands and the power controlling unit issues power interruption commands before the momentary power interruption occurs. This preliminary command exchange ensures that the controlling unit is already shut down when the interruption happens, preventing communication failures during the interruption while maintaining the ease of command-based communication for normal operations.
Data Source
AI summary
An electrical device includes a controlling unit configured to control the electrical device, a power supplying unit configured to supply power to the controlling unit, and a power controlling unit configured to control supply and interruption of power with regard to the controlling unit by the power supplying unit. The controlling unit and the power controlling unit are configured to perform command-based communication. The power controlling unit instructs the power supplying unit to interrupt the supply of power to the controlling unit based on a shutdown command received from the controlling unit.