Switched Multi-Unit Power Supply Circuit for Longer Ranging Runtime

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Solution Overview

Problem

Traditional ranging devices rely on dry batteries for power supply, leading to insufficient battery life and power supply issues.

Innovation Solution

A power supply circuit with multiple power supply units, voltage protection modules, and a power supply switching module that switches between units to provide sufficient power, enhancing battery life and reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If traditional dry batteries are used for power supply, then the device structure remains simple, but the battery life is insufficient and power supply is inadequate

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 divided into multiple independent power supply units (first power supply unit, second power supply unit, etc.), each capable of independently supplying power to the functional module. This segmentation allows the system to extend operational duration by switching between multiple units while keeping each individual unit relatively simple in structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The power supply switching module dynamically switches between different power supply units based on operational needs. This dynamic switching capability enables the system to adaptively manage power resources, extending battery life through multiple rechargeable units while maintaining manageable complexity through automated control logic.

Inventive Principle:
Principle #15Dynamics

2Power

If multiple power supply units are used to extend battery life, then power supply amount is sufficient, but the circuit complexity increases with multiple voltage protection modules and switching modules

Engineering Contradiction:
Improvepower supply amountVSAvoidcircuit structure complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The power supply system is segmented into multiple independent power supply units, each with its own voltage protection module. This segmentation allows the system to provide sufficient total power by combining multiple units while maintaining modular architecture that simplifies overall circuit design and management.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Voltage protection modules are pre-configured for each power supply unit before operation begins. This preliminary setup ensures that when multiple power supply units are activated, the protection mechanisms are already in place, reducing the need for complex real-time control logic and simplifying the switching module's design.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If voltage protection modules are added to each power supply unit, then power supply reliability is improved, but the device complexity and number of components increase

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The power supply system is divided into multiple independent units, each with its own voltage protection module. This segmentation isolates protection functions to individual units, ensuring that a failure in one unit's protection module does not affect other units, thereby improving overall reliability while maintaining a manageable number of components through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each power supply unit is equipped with its own dedicated voltage protection module, providing localized protection tailored to that specific unit's characteristics. This local quality approach ensures reliable protection for each unit without requiring a complex centralized protection system, balancing reliability improvement with component count management.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20260031614A1Power supply circuit and ranging device
Publication Date: 2026.01.29 SHENZHEN MILESEEY TECH
  • US20260031614A1 patent drawing
  • US20260031614A1 patent drawing
  • US20260031614A1 patent drawing

AI summary

A power supply circuit and a ranging device, the power supply circuit includes multiple power supply units, multiple voltage protection modules and a power supply switching module, each voltage protection module is connected to each power supply unit in one-to-one correspondence; the input end of the power supply switching module is connected to each voltage protection module, and the output end of the power supply switching module is configured to connect with the functional module of the ranging device; the power supply switching module is configured to achieve the electric circuits' “on” and “off” between power supply units and the functional module.