Power Discharge Control Device for Computer System Shutdown
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Solution Overview
Problem
Computer systems experience abnormal operations due to misjudgments caused by remaining power when shut down or powered off, leading to false BIOS operations and potential damage.
Innovation Solution
A power discharge control device and method that generates a control signal based on a pin signal from the computer system to execute a controlled power discharge process, using a control unit and discharge unit, such as a Timer 555 IC and a switch unit, to safely discharge residual power when the system is shut down or powered off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic power management setting is used in BIOS, then power management convenience is improved, but false operations occur due to misjudgments from remaining power
Solution Approach 1:
The patent implements a preliminary power discharge action before the system considers itself fully shut down. When the system receives a shutdown signal, the control unit activates the discharge unit to discharge remaining power from capacitors and other components before the system officially transitions to the off state, preventing false operations upon restart
Solution Approach 2:
The patent employs feedback mechanisms where the control unit monitors the shutdown signal from the system and responds by activating the discharge unit. The control unit receives feedback about the system state and adjusts the discharge timing accordingly, ensuring that discharge occurs at the appropriate moment to prevent BIOS misjudgments
2Speed
If remaining power is not discharged completely, then system restart speed is improved, but false BIOS operations occur due to power misjudgments
Solution Approach 1:
The control unit performs the power discharge action preliminarily during the shutdown sequence, before the system restart is initiated. This preliminary discharge ensures that when the system restarts, there is no remaining power to cause BIOS misjudgments, while the overall restart process remains fast because the discharge occurs in the background during shutdown
Solution Approach 2:
The patent implements periodic or timed discharge actions controlled by the control unit, which activates the discharge unit for specific time intervals during the shutdown process. This timed approach ensures complete discharge while maintaining efficient system operation and fast restart capability
3Reliability
If a power discharge control device is added, then false operations are prevented, but device complexity increases
Solution Approach 1:
The patent introduces a control unit as an intermediary component that mediates between the system shutdown signal and the discharge unit activation. This intermediary intelligently controls the discharge process, preventing false operations while keeping the overall system relatively simple by using a dedicated control component rather than complex circuitry throughout the system
Solution Approach 2:
The discharge unit is designed to automatically discharge power when activated by the control unit, without requiring additional complex control mechanisms. The capacitor and discharge circuit form a self-service system that naturally discharges power through the controlled path, reducing the need for additional active components and simplifying the overall device structure
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
Prevents abnormal operations and reduces power consumption by ensuring complete discharge of residual power, thereby extending system life and preventing damage during restarts.
Implementation Method 1
a capacitor, coupled to the diode
Implementation Method 2
a diode, coupled to a voltage source
Data Source
AI summary
A power discharge control device for a computer system is disclosed. The power discharge control device includes a control unit for generating a control signal corresponding to a pin signal of the computer system, and a discharge unit coupled to the control unit, for executing a power discharge process of the computer system according to the control signal, wherein the pin signal is generated when the computer system is shut down normally or powered off abnormally.