Power Supply Circuit Simulating Battery Discharge and Recharge

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Solution Overview

Problem

The frequent discharge and recharge of batteries during testing of electronic device components reduce battery life, necessitating a power supply circuit that can simulate battery function without actual battery usage.

Innovation Solution

A power supply circuit comprising an operational amplifier, voltage adjusting circuit, current controlling circuit, feedback circuit, driving circuit, and protection circuit, which simulates battery power by outputting adjustable voltage and current to electronic device components, mimicking both discharge and recharge processes while being powered by an external source.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a battery is used to power functioning parts during testing, then the functioning parts can be tested, but the battery life decreases due to frequent discharging and recharging

Engineering Contradiction:
Improvefunctioning parts testingVSAvoidbattery life
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent creates a power supply circuit that copies the essential electrical characteristics of a battery (voltage output, current supply, discharge/recharge cycles) without using an actual battery. The circuit uses operational amplifiers and switching components to simulate battery behavior, providing the same testing functionality while eliminating battery degradation.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces a power supply circuit as an intermediary device between the power source and the functioning parts. This circuit acts as a mediator that can simulate battery characteristics and control power delivery, replacing the direct battery connection while maintaining testing capabilities.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Duration of action of moving object

If a power supply circuit simulates battery function, then battery life is prolonged, but the device complexity increases

Engineering Contradiction:
Improvebattery lifeVSAvoidpower supply circuit complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The power supply circuit is designed to perform multiple functions: it can simulate battery discharge, simulate battery recharge, provide voltage regulation, and offer protection mechanisms. By consolidating these functions into a single circuit module, the patent reduces overall system complexity compared to using multiple separate components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the voltage regulation, current control, and protection functions into an integrated power supply circuit. The operational amplifiers and switching components are merged into a unified design that replaces what would otherwise require separate battery, voltage regulator, and protection circuit components.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If a power supply circuit provides adjustable voltage and current, then it can mimic battery discharge and recharge processes, but the control mechanism becomes more complex

Engineering Contradiction:
Improvebattery function simulationVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The power supply circuit uses dynamic switching of operational amplifiers and control components to adapt between different operating modes (discharge simulation, recharge simulation, voltage regulation). The circuit transitions between states based on control signals, providing versatile battery-like functionality through dynamic reconfiguration rather than static design.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The circuit incorporates feedback mechanisms where the output voltage and current are monitored and fed back to the control components. This allows the operational amplifiers to automatically adjust their output to maintain desired voltage and current levels, simplifying the control mechanism by using self-regulating feedback loops rather than complex external control circuits.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9110648B2Power supply circuit to simulate battery power
Publication Date: 2015.08.18 FU TAI HUA IND SHENZHEN
  • US9110648B2 patent drawing
  • US9110648B2 patent drawing
  • US9110648B2 patent drawing

AI summary

A power supply circuit includes a power output port, an operational amplifier, a voltage adjusting circuit, a feedback circuit, and a current controlling circuit. The power output port connects with an electronic device under test and provides a power supply which in all respects simulates the behavior of a battery being discharged as it supplies working power, the circuit also mimics the behavior of a battery in testing the battery-recharging abilities of the electronic device.