Power Adaptor Testing via Electronic Load Simulation

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Solution Overview

Problem

Current power adaptor testing methods are not comprehensive and pose safety risks, as they often require a real mobile device as a workload, which is inconvenient and can lead to explosions during short-circuit tests.

Innovation Solution

An apparatus comprising a testing module, an electronic load, and a host computer that simulates the working state of an electronic device to test power adaptors, controlling them to achieve target output states and detecting output information to ensure safety and efficiency without using a real device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a real mobile device is used as workload for testing, then the test can reflect actual working conditions, but it is inconvenient and poses safety risks including explosion during short-circuit tests

Engineering Contradiction:
Improvetest safetyVSAvoidtest convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent uses an electronic load to simulate the battery and device characteristics instead of using a real mobile device. The electronic load replicates the electrical characteristics, discharge curves, and working states of actual devices, providing a safe virtual copy that eliminates explosion risks while maintaining test relevance.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The electronic load acts as an intermediary between the power adaptor under test and the actual device. It interfaces the adaptor with simulated device parameters, allowing safe testing of protection functions and working states without direct connection to real devices that could explode during short-circuit conditions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a real mobile device is used for testing, then comprehensive test coverage can be achieved, but the test environment setup becomes complex and inconvenient

Engineering Contradiction:
Improvetest coverageVSAvoidtest environment complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The electronic load creates a simplified model of the mobile device that captures essential electrical characteristics without requiring the actual device hardware. This virtual representation maintains test comprehensiveness while dramatically reducing environmental setup complexity.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The testing system is divided into independent functional modules: the power adaptor under test, the electronic load simulating device characteristics, and the control system. This segmentation allows each component to be independently configured and tested without requiring a complete real device ecosystem.

Inventive Principle:
Principle #1Segmentation

3Reliability

If comprehensive testing is performed on multiple adaptors, then test quality improves, but testing time and efficiency decrease

Engineering Contradiction:
Improvetest qualityVSAvoidtesting efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

By using electronic loads that can be rapidly reconfigured to simulate different device types and states, the system enables comprehensive multi-adaptor testing without the time-consuming setup required for real devices. The same electronic load infrastructure supports multiple test scenarios sequentially.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The electronic load system dynamically adjusts its parameters to simulate different working states, discharge curves, and device characteristics. This dynamic reconfiguration allows comprehensive testing of multiple adaptors with varying requirements without physical reassembly, maintaining high testing efficiency while improving coverage.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11249141B2Apparatus and method for testing adaptor
Publication Date: 2022.02.15 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US11249141B2 patent drawing
  • US11249141B2 patent drawing
  • US11249141B2 patent drawing

AI summary

Provided are an apparatus for testing an adaptor, a method for testing an adaptor, and a computer storage medium. The apparatus includes a testing module, a host computer, and an electronic load. The testing module is coupled with the electronic load to simulate a working state of an electronic device, to acquire a simulated battery voltage value corresponding to the working state. The testing module is configured to be coupled with an adaptor to-be-tested to control, according to the simulated battery voltage value, the adaptor to-be-tested to be in a target output state. The testing module is coupled with the host computer, to detect the target output state of the adaptor to-be-tested to obtain output information of the adaptor to-be-tested and send the output information to the host computer. The host computer is configured to output a test result of the adaptor to-be-tested according to the output information of the adaptor to-be-tested.