Autonomous Switch Status Check Circuit
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Solution Overview
Problem
Existing power supply systems face challenges in quickly and autonomously performing status checks on switches to detect faults, which can lead to prolonged power interruptions and safety concerns, especially in applications where brief interruptions are required.
Innovation Solution
A driver device with a testing circuit that autonomously toggles a switch and measures parameter magnitudes, such as voltage, to determine if a fault exists, allowing for rapid status checks without external controller command, thereby minimizing power interruption time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If status check is performed by external controller commanding each step, then system control is centralized, but status check time duration is prolonged
Solution Approach 1:
The driver device performs autonomous status checks of the switch without requiring continuous external controller commands. The driver independently toggles the switch, measures voltage magnitudes at different instances, and determines fault conditions, enabling self-service operation that reduces status check time while maintaining system reliability
2Loss of time
If status check is performed quickly to meet industry standards, then power interruption time is reduced, but measurement accuracy may be compromised
Solution Approach 1:
The driver device performs preliminary actions by capturing voltage magnitude measurements at specific predetermined instances during the switch toggling sequence. By pre-defining measurement points (first instance before toggling, second instance after toggling, third instance after re-toggling), the system ensures accurate fault detection within the brief power interruption window required by industry standards
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
Enables faster and more efficient fault detection in power supply systems, reducing the duration of power interruptions and enhancing system safety by allowing autonomous status checks to be performed quickly, meeting industry standards for brief power interruptions.
Implementation Method 1
determining a parameter magnitude at the switch at a second instance after toggling the switch at the first instance by at least determining a voltage magnitude at the switch at the second instance
Data Source
AI summary
In some examples, a device includes a control circuit configured to deliver driving signals to a switch. The device also includes a testing circuit configured to cause the control circuit to toggle the switch at a first instance and determine a parameter magnitude at the switch at a second instance after toggling the switch at the first instance by at least determining a voltage magnitude at the switch at the second instance. The testing circuit is also configured to cause the control circuit to toggle the switch after the second instance and determine a parameter magnitude at the switch at a third instance after toggling the switch after the second instance. The testing circuit is further configured to generate an output based on the determined parameter magnitudes at the switch at the second and third instances.