Voltage Control Device for Stable Power Supply
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Solution Overview
Problem
In voltage control devices, particularly in digital coherent optical transmission systems, the rapid variation of consumption current due to switching between conduction and non-conduction states causes abrupt changes in output voltage, leading to operation failures and noise, as the power supply struggles to maintain a stable voltage level.
Innovation Solution
A voltage control device with a control unit that adjusts the target voltage based on the operation state of the device, using a voltage converting unit to supply a stable voltage by determining two constant voltage levels for conduction and non-conduction states and smoothing rapid changes in consumption current.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the power supply voltage is kept constant for the modulation/demodulation LSI, then the circuit operation is simplified, but the consumption current varies rapidly causing output voltage to fluctuate and leading to operation failures
Solution Approach 1:
The patent applies dynamics by making the power supply voltage adjustable rather than fixed. The control unit dynamically changes the reference voltage based on the operation state (conduction or non-conduction) of the modulation/demodulation LSI, allowing the system to adapt to varying current consumption patterns and prevent voltage fluctuations that would otherwise cause operation failures.
Solution Approach 2:
The patent changes the voltage parameter based on operation state. Specifically, it sets the reference voltage to a first value during conduction state and a second value during non-conduction state, preventing rapid voltage changes that would occur with constant voltage supply. This parameter adjustment resolves the contradiction between operational simplicity and stability.
2Stability of the object's composition
If the reference voltage is changed based on operation state, then the output voltage stability is improved, but the device complexity increases due to additional control mechanisms
Solution Approach 1:
The patent implements feedback by having the control unit detect the operation state of the modulation/demodulation LSI and adjust the reference voltage accordingly. This feedback mechanism ensures voltage stability during transitions between conduction and non-conduction states while keeping the control logic relatively simple, as it only requires detecting the operation state and selecting between two predefined voltage levels.
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 ensures a stable power supply voltage even as the operation state of the device varies, preventing abrupt voltage changes and operation failures by dynamically adjusting the target voltage in response to consumption current fluctuations.
Implementation Method 1
a voltage converting unit for converting a voltage of a power supply into a target voltage and supplying the converted voltage to a device to be supplied with voltage
Implementation Method 2
a control unit for controlling the target voltage depending on an operation state of the device to be supplied with voltage
Data Source
AI summary
A voltage control device is disclosed. The voltage control device may have a voltage converting unit. The voltage converting unit may convert a voltage of a power supply on the basis of a target voltage. The voltage converting unit may also supply a converted voltage to a device to be supplied with voltage. The voltage control device may also have a control unit. The control unit may control the target voltage depending on an operation state of the device to be supplied with voltage.