Capacitive Load Switching for Faster Power Supply Testing
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Solution Overview
Problem
Existing electrical testing methods for power supplies require manual plugging and unplugging of capacitors, leading to reduced capacitor life and low accuracy and speed due to operator dependence.
Innovation Solution
An electrical testing device with a capacitive load device and a microcontroller-controlled switch system that automates the connection and disconnection of capacitors based on level signals, improving efficiency and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual plugging and unplugging of capacitors is used for electrical testing, then the testing process can be performed with simple equipment, but the capacitor life is reduced and testing accuracy and speed are low
Solution Approach 1:
The patent replaces the manual mechanical operation of plugging and unplugging capacitors with an automated switching system controlled by a microcontroller. The microcontroller sends control signals to switches that automatically connect and disconnect capacitors based on test requirements, eliminating manual handling and improving testing speed and consistency
Solution Approach 2:
The testing device performs self-automation where the microcontroller autonomously controls the entire testing process. It automatically selects capacitors based on test specifications, controls the switching connections, and manages the testing sequence without requiring operator intervention, thereby improving productivity while maintaining controlled device complexity
2Measurement precision
If manual plugging and unplugging of capacitors is used for electrical testing, then the device structure remains simple, but testing accuracy is reduced due to operator experience limitations
Solution Approach 1:
The patent replaces manual mechanical capacitor handling with an automated electronic switching system. The microcontroller precisely controls switch timing and positioning based on programmed test parameters, ensuring consistent and accurate electrical measurements independent of operator experience
Solution Approach 2:
The testing device incorporates feedback mechanisms where the microcontroller monitors test parameters and adjusts capacitor connections accordingly. This closed-loop control ensures accurate testing by automatically responding to measured values and adjusting the testing sequence to maintain required precision
3Duration of action of stationary object
If repeated manual plugging and unplugging of capacitors is performed, then testing flexibility is maintained, but capacitor life is reduced
Solution Approach 1:
The patent replaces repeated manual mechanical connections with an automated switching system that uses electrical signals to control capacitor connections. This reduces mechanical stress and physical handling on capacitors, extending their operational life while maintaining testing flexibility through programmable control
Solution Approach 2:
The microcontroller pre-programmes the testing sequence and capacitor selection before execution. This allows the system to automatically perform multiple testing cycles without repeated manual intervention, extending capacitor life while maintaining operational flexibility through configurable test parameters
Data Source
AI summary
The present application discloses an electrical testing device, an electrical testing method and a storage medium. The electrical testing device includes a power supply, a capacitive load device used to provide a capacitive load for the power supply, and a testing device. The testing device is used to test electrical information of the power supply according to the capacitive load. The capacitive load device comprises a capacitor, a switch and a microcontroller. The capacitor is connected to the testing device and used to provide the capacitive load for the power supply by the testing device. The switch is connected to the capacitor and used to control connection and disconnection between the capacitor and the power supply. The microcontroller is connected to the switch and is used to control the connection and disconnection of the switch according to a level signal received by the microcontroller.