Selective Recharging Control for Portable Battery Life Extension

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Solution Overview

Problem

Current recharging apparatuses for portable electronic devices always enable recharging regardless of the battery's charge level, leading to unnecessary recharges and reduced battery life due to limited recharge cycles.

Innovation Solution

A recharging apparatus and method that selectively enables or interrupts recharging procedures based on the battery's remaining energy, using an input unit to generate a switching control signal and a control unit to determine whether to output an enable signal to the recharging circuit, thereby optimizing when recharging occurs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the recharging apparatus always enables recharging procedures when connected to an external power source, then the battery can be continuously recharged, but the battery life is reduced due to excessive recharging cycles

Engineering Contradiction:
Improverecharging frequencyVSAvoidbattery life
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The control unit monitors the charging status of the rechargeable battery and uses this feedback information to determine whether to enable recharging. When the battery is fully charged, the control unit interrupts the recharging procedure, preventing excessive charging cycles that would reduce battery life while still allowing recharging when needed.

Inventive Principle:
Principle #23Feedback

2Reliability

If the recharging apparatus interrupts recharging procedures to extend battery life, then battery life is extended, but the device may run out of power if recharging is interrupted when energy levels are low

Engineering Contradiction:
Improvebattery lifeVSAvoiddevice operability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The control unit continuously monitors battery energy levels and uses this feedback to make intelligent decisions. When energy levels are low, the control unit enables recharging even if it means more charging cycles, ensuring the device remains operational. When energy levels are high, it interrupts recharging to extend battery life, thus balancing both concerns.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS7589503B2Recharging apparatus capable of selectively enabling or interrupting recharging procedure for rechargeable battery in portable electronic device and recharging method thereof
Publication Date: 2009.09.15 ASUSTEK COMPUTER INC
  • US7589503B2 patent drawing
  • US7589503B2 patent drawing
  • US7589503B2 patent drawing

AI summary

A recharging apparatus applied to a portable electronic device. The recharging apparatus is capable of selectively enabling or interrupting the recharging procedure for a rechargeable battery in the portable electronic device. The recharging apparatus includes an input unit, a recharging circuit, and a control unit. The input unit is applied to generate a switching control signal; the recharging circuit is applied to receive an enable signal and then output recharging power used for recharging the rechargeable battery; and the control unit, electrically connected to the input unit and the rechargeable battery, is applied to determine whether to output the enable signal to the recharging circuit or not in accordance with the switching control signal.