AC Adapter Power Control for Low Temperature Booting
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Solution Overview
Problem
Conventional methods for booting electronic devices in low temperature environments often fail to account for the AC adapter's temperature limitations, leading to power failures and prolonged boot times, as they primarily focus on heating the device without considering the adapter's performance.
Innovation Solution
A booting method that gradually increases the power output of the AC adapter by executing booting subroutines sequentially, storing a booting process record to resume from the last executed subroutine after a power failure, and incorporating pre-heating jobs to warm internal components and the hard drive, ensuring the adapter can handle the load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the hard drive is heated and the motherboard is powered for a fixed time when the notebook computer abnormally shutdowns or is unable to start, then the internal temperature reaches an allowable working temperature, but the AC adapter is unable to bear the required outputs during the boot process leading to power failure
Solution Approach 1:
The patent applies preliminary action by executing pre-heating jobs before the main boot process to warm up the hard drive and internal components. The controller sequentially executes multiple pre-heating jobs with increasing power output levels, allowing the system to reach operational temperature gradually before attempting to boot, thereby preventing power failure during the boot process
Solution Approach 2:
The patent implements dynamics by making the power output of the AC adapter variable rather than fixed. The controller dynamically adjusts the power output level based on the current booting stage and temperature conditions, increasing power output gradually as the system warms up and as booting progresses, allowing the AC adapter to handle the load without causing power failure
2Temperature
If conventional heating methods are used to increase the temperature of the notebook computer, then the temperature reaches an allowable booting temperature, but it wastes energy and increases unnecessary waiting time
Solution Approach 1:
The patent performs pre-heating actions before the main boot process to ensure components are at appropriate temperature. By executing pre-heating jobs sequentially with controlled power output, the system reaches operational temperature more efficiently, reducing unnecessary waiting time and energy consumption compared to conventional fixed-time heating methods
Solution Approach 2:
The patent changes the power output parameter dynamically during the heating process. The controller adjusts power output levels based on the booting stage and temperature conditions, increasing power output gradually as the system warms up and as booting progresses. This parameter adjustment allows the AC adapter to handle the load without causing power failure while reducing energy waste
3Reliability
If the AC adapter is heated to operational temperature, then the adapter can bear the required outputs, but it requires additional heating components and increases device complexity
Solution Approach 1:
The patent makes the existing power supply unit serve multiple functions: it both powers the system components and simultaneously heats the AC adapter and internal components during the boot process. The power supply unit is used for heating the hard drive, motherboard, and AC adapter itself, eliminating the need for separate heating components and reducing device complexity
Solution Approach 2:
The system performs self-heating by using its own power supply unit to heat its components during the boot process. The AC adapter heats itself and the internal components using power from the power supply unit, eliminating the need for external heaters or additional heating systems, thereby reducing device complexity
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
This approach stabilizes the AC adapter's power supply, reduces unnecessary waiting time, and conserves energy by efficiently warming the device and adapter to operational temperatures, allowing the device to boot normally in low temperature conditions.
Implementation Method 1
a hard drive heating unit is disposed on the hard drive of a notebook computer. When the notebook computer is unable to boot up after receiving a booting signal or the notebook computer crashes because of the low temperature, the notebook computer will heat up the hard drive through the hard drive heating unit
Implementation Method 2
The power supply unit provides a power output, wherein an output value of the power output of the power supply unit controlled by the controller increases gradually as the sequential execution of the booting subroutines
Data Source
AI summary
A booting method for low temperature environment and an electronic apparatus therefor are provided. The booting method includes the following steps: reading a booting process record from a memory unit of the electronic apparatus; executing a booting process according to the booting process record, wherein the booting process includes a plurality of booting subroutines; and when executing one of the booting subroutines, updating the booting process record stored in the memory unit of the electronic apparatus corresponding to the booting subroutine, wherein the booting subroutines include providing a power output by controlling a power supply unit of the electronic apparatus, and an output value of the power output gradually increases as executing the booting subroutines sequentially.