Power Supply Stress Testing for High-Speed Network Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-speed network transmission systems face challenges in testing power distribution subsystems for voltage precision and current surges, which can cause malfunctions or damage to components, as existing test equipment often fails to adequately assess these conditions.
Innovation Solution
A test instrument that generates test signals to stimulate current surges over a range of frequencies and amplitudes, simulating stress conditions on network components like forward error correction circuits and packet processors to evaluate the power supply network's ability to maintain voltage precision under varying conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing network test equipment is used to test functionalities of high-speed network transmission systems, then the testing of network functions is adequate, but the equipment is not designed to test for current surges and cannot detect power supply stress conditions
Solution Approach 1:
The test instrument is designed to perform multiple functions: it can generate test signals for functional testing and simultaneously generate surge current test signals for power supply stress testing. This multi-functionality allows a single device to cover both network function testing and power supply resilience testing, resolving the contradiction between reliability improvement and adaptability maintenance.
Solution Approach 2:
The patent combines the functional test signal generation capability with surge current test signal generation capability into a single test instrument. By merging these previously separate testing functions into one unified device, the system achieves both adequate functional testing and new power supply stress testing capabilities without requiring multiple separate instruments.
2Reliability
If surge current testing is implemented to detect power supply vulnerabilities, then component reliability is improved, but existing test equipment lacks the capability to perform such testing
Solution Approach 1:
The test instrument incorporates a controllable current source that can dynamically adjust surge current parameters including amplitude, duration, and repetition rate. This dynamic capability allows the equipment to generate various surge current waveforms to stress-test power supply networks under different conditions, enabling reliable component testing while maintaining ease of operation through programmable control.
Solution Approach 2:
The patent utilizes parameter changes in the test signals (amplitude, frequency, duration) to create different surge current profiles that stress-test the power supply network. By varying these parameters, the test instrument can simulate different fault conditions and evaluate component reliability without requiring multiple specialized devices, thus improving reliability while maintaining manufacturing simplicity.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A test instrument performs a power supply stress test by invoking current surges in a device under test. The current surges are invoked by stimulating functional blocks in the device under test with test signals received via a network interface of the device under test.