Electronic Lock Boost Converter for Selective High-Voltage Operation

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Solution Overview

Problem

Electronic locks face high power consumption issues due to constant voltage requirements, leading to frequent battery replacements.

Innovation Solution

An electronic lock with a boost converter that selectively increases voltage on a power bus when needed, using a first processor to determine voltage requirements and activate the converter, combined with a step-down converter to maintain lower voltage for other components, reducing overall power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If constant voltage is provided to all components, then all components can operate reliably, but power consumption increases

Engineering Contradiction:
Improvecomponent operation reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies local quality by providing different voltage levels to different components based on their specific requirements. The processor and memory receive lower voltage (first voltage) to reduce power consumption, while the communication section receives higher voltage (second voltage) when activation is detected to ensure reliable operation. This selective voltage distribution resolves the contradiction by matching voltage supply to actual component needs.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by making the voltage supply adaptive and changeable based on system state. The voltage to the communication section is dynamically adjusted: lower voltage when inactive and higher voltage when activation is detected. This dynamic voltage adjustment allows the system to maintain reliability when needed while minimizing power consumption during normal operation.

Inventive Principle:
Principle #15Dynamics

2Reliability

If higher voltage is always provided, then components requiring high voltage can operate reliably, but power consumption increases

Engineering Contradiction:
Improvehigh voltage component operationVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies periodic action by providing higher voltage to the communication section only during specific periods when activation is detected, rather than continuously. The voltage increases from first voltage to second voltage temporarily when communication is needed, then returns to first voltage. This periodic high-voltage supply ensures reliable operation when required while significantly reducing overall power consumption.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent implements parameter changes by varying the voltage parameter based on system state. The voltage to the communication section changes between two discrete levels (first voltage and second voltage) depending on whether activation is detected. This parameter adjustment allows the system to provide sufficient power for reliable high-voltage component operation only when necessary, reducing overall power consumption.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If voltage is increased for communication section, then communication reliability improves, but overall system power consumption increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidsystem power consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies segmentation by dividing the power supply system into separate voltage domains. The processor and memory operate on one voltage level (first voltage) while the communication section operates on another voltage level (second voltage when activated). This segmentation allows independent voltage optimization for each subsystem, ensuring communication reliability when needed while minimizing power consumption in the processing subsystem.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements parameter changes by adjusting the voltage parameter specifically for the communication section based on activation detection. When activation is detected, the voltage to the communication section changes from first voltage to second voltage to improve communication reliability. When not activated, it remains at first voltage to minimize power consumption, thus resolving the contradiction between communication reliability and system power consumption.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Reduces power consumption by providing higher voltage only when necessary, extending battery life and minimizing replacement frequency while maintaining efficient component operation.

Implementation Method 1

a boost converter configured to selectively increase a voltage of the first power bus from the first voltage to a second voltage

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS20250371920A1Electronic lock comprising a boost converter for selectively increasing a voltage
Publication Date: 2025.12.04 ASSA ABLOY AB
  • US20250371920A1 patent drawing
  • US20250371920A1 patent drawing
  • US20250371920A1 patent drawing

AI summary

It is provided an electronic lock (12) comprising: a first power bus (20); a battery holder (23) configured to hold at least one battery (19) to thereby supply power of a first voltage to the first power bus (20); a boost converter (24) configured to selectively increase a voltage of the first power bus (20) from the first voltage to a second voltage; a first processor (60) connected to the boost converter (24); a first memory (64) storing instructions (67) that, when executed by the first processor (60), cause the electronic lock (12) to: determine a need for increased voltage; and trigger the boost converter (24) to activate to thereby increase a voltage on the first power bus (20). It is also provided a corresponding method, computer program (67) and computer program product (67).