Battery Simulation Circuit for Efficient Device Testing
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Solution Overview
Problem
Testing electronic devices with lithium-ion batteries is time-consuming and can reduce the battery's life, necessitating a more efficient simulation method.
Innovation Solution
A battery simulation circuit with an integrated amplifier, voltage adjustment unit, current limitation unit, feedback unit, temperature control unit, and overcurrent indication unit, which simulates battery power supply and rechargeability without using an actual battery, thereby preserving the battery's life during testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If actual lithium-ion battery is used for testing electronic device functions, then testing can be performed with real battery behavior, but testing takes long time and reduces battery life
Solution Approach 1:
The patent creates a simulation circuit that copies the electrical characteristics and behavior of a lithium-ion battery without using the actual battery. The circuit replicates voltage, current, and charging/discharging profiles, allowing comprehensive testing of electronic device functions while preserving the real battery's life.
Solution Approach 2:
The simulation circuit acts as an intermediary between the electronic device under test and the actual battery. It provides a safe interface that allows testing to be performed on the electronic device while the battery remains protected from excessive discharge cycles and stress conditions that would reduce its lifespan.
2Productivity
If comprehensive function testing is performed on electronic device, then all functions can be verified, but it reduces battery life due to extended testing duration
Solution Approach 1:
By creating a faithful copy of battery behavior through the simulation circuit, the system enables extended and comprehensive testing of all electronic device functions without actually consuming the real battery's capacity or reducing its lifespan.
Solution Approach 2:
The testing system is segmented into two independent parts: the simulation circuit that handles all stressful testing operations, and the actual battery that remains preserved. This segmentation allows comprehensive testing to proceed without impacting battery longevity.
Data Source
AI summary
A battery simulation circuit simulates a rechargeable battery. The battery simulation circuit includes an integrated amplifier, a voltage adjustment unit, a current limitation unit, and a feedback unit. The voltage adjustment unit provides a reference voltage for the integrated amplifier; the current limitation unit provides a reference current for the integrated amplifier and the feedback unit provides a negative feedback signal for the integrated amplifier to control the integrated amplifier working in a linear state. The integrated amplifier outputs an output signal according to the reference voltage and the reference current; the battery simulation circuit supplies power for an electronic device. When the output terminal is connected to a DC power source and a voltage of the DC power source is greater than the output voltage of the output terminal, the battery simulation circuit simulates a battery being recharged by the DC power source via the output terminal.