Power Source Managing Unit Timing Control for Server Voltage Stability

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Solution Overview

Problem

In server systems, improper timing of voltage output can lead to leakage, erroneous operation, and unrecoverable damage, highlighting the need for precise control of voltage output to ensure system stability.

Innovation Solution

A power source protection device comprising a power supply, a power source managing unit, and a signal sending unit, which includes an eFuse circuit and a complex programmable logic device, that transforms DC input voltage into standby power output voltage only when a control signal is received within a specified enabling time, preventing unintended voltage supply.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If voltage is supplied immediately when DC input voltage reaches a certain value, then power supply speed is improved, but system reliability deteriorates due to leakage and erroneous operation

Engineering Contradiction:
Improvepower supply speedVSAvoidsystem reliability
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The patent applies preliminary action by implementing a pre-charging process before the main power supply. The pre-charging circuit activates first to charge capacitors and prepare the circuit, then after a predetermined time delay (using a timer circuit), the main power supply is enabled. This ensures that voltage is supplied in the correct sequence and at appropriate times, preventing leakage and erroneous operation while maintaining efficient power supply speed.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If voltage transformation circuits are added to control voltage output timing, then system reliability is improved, but device complexity increases

Engineering Contradiction:
Improvesystem reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into integrated circuits to reduce overall device complexity. The voltage transformation circuit includes integrated voltage regulators, timer circuits, and control logic that work together as a unified system. By combining these functions into a single integrated voltage transformation unit rather than separate discrete components, the patent achieves reliable timing control while minimizing the increase in device complexity.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If enabling time control is implemented to prevent erroneous operation, then system stability is improved, but loss of time increases due to waiting period

Engineering Contradiction:
Improvesystem stabilityVSAvoidenabling time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent applies parameter changes by making the enabling time a可调 (adjustable) parameter rather than a fixed value. The timer circuit allows the enabling time to be configured based on specific system requirements, balancing the need for stability with the desire to minimize time loss. Additionally, the pre-charging time constant can be adjusted by changing capacitor or resistor values, allowing optimization of the timing to achieve the minimum necessary delay for system stability while reducing unnecessary waiting time.

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

This solution effectively prevents system damage by ensuring the standby power output voltage is provided at correct time points, avoiding leakage and unrecoverable errors by entering a shutdown state if the control signal is not received within the enabling time.

Implementation Method 1

the power source managing unit transforms the DC input voltage into a standby power output voltage

Methodology Applied
Scientific EffectVoltage transformation:

Data Source

PatentUS9729004B2Power source protection device and method
Publication Date: 2017.08.08 INVENTEC PUDONG TECH CORPOARTION
  • US9729004B2 patent drawing
  • US9729004B2 patent drawing
  • US9729004B2 patent drawing

AI summary

A power source protection device and a power source protection method are disclosed herein. The power source protection device includes a power supply, a power source managing unit and a signal sending unit. The power supply provides a DC input voltage. The power source managing unit receives the DC input voltage, and when a determining voltage related to the input voltage is larger than a set voltage, enters a startup state and outputs a supply voltage. After receiving the supply voltage, the power source managing unit transforms the DC input voltage into a standby power output voltage and provides the standby power output voltage when the signal sending unit sends a control signal to the power source managing unit within an enabling time. VVhen it has not received the control signal within the enabling time, the power source managing unit enters a shutdown state.