Control Circuit Standby Power Reduction via Dynamic Switching
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Solution Overview
Problem
Display apparatuses in standby mode consume significant electric energy due to continuous power supply to various components, leading to wasteful energy usage.
Innovation Solution
A control circuit with a power input terminal, energy storage part, switch part, and trigger part that disconnects power to non-essential components upon receiving a trigger signal, reducing energy consumption by altering the connection status between the power input and output terminals based on the signal received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous power supply is provided to display apparatus components, then the apparatus can maintain operational readiness and respond quickly, but standby power consumption increases significantly
Solution Approach 1:
The patent implements dynamic power management by switching between different power states. The control circuit dynamically adjusts the connection between power input and output terminals based on operational status, transitioning from continuous power supply in operational mode to disconnected state in standby mode, thereby reducing power consumption while maintaining quick response capability through stored energy in capacitors.
Solution Approach 2:
The patent employs periodic power supply through energy storage capacitors that charge during brief operational intervals and discharge during standby periods. This periodic charging and discharging allows the system to maintain operational readiness without continuous power consumption, as the capacitors provide sufficient energy for quick reactivation.
2Loss of energy
If power is completely disconnected during standby, then energy consumption is minimized, but the apparatus cannot respond quickly to user input
Solution Approach 1:
The patent applies preliminary action by pre-charging energy storage capacitors before complete power disconnection. These capacitors are charged during brief operational windows and maintain sufficient voltage levels to enable quick response to user input. The control circuit monitors capacitor charge levels and manages power connection timing to ensure adequate energy is stored in advance, allowing the system to remain responsive even when disconnected from main power during standby.
3Device complexity
If a simple switch is used to control power, then device complexity is reduced, but control functionality and reliability are insufficient
Solution Approach 1:
The patent segments the power control function into multiple independent components: control circuit, energy storage capacitors, switching elements, and monitoring subsystems. This segmentation allows each component to perform its specific function reliably - the control circuit manages logic, capacitors store energy, switches execute connection/disconnection, and monitoring ensures proper operation. The modular segmented architecture achieves high reliability without excessive overall 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
The control circuit significantly reduces standby power consumption by ensuring only a small operation current is present in the display apparatus during standby mode, decreasing energy wastage while maintaining functionality.
Implementation Method 1
An input terminal of the energy storage part is coupled to the power input terminal, the energy storage part is configured to supply power to the control circuit after storing electric energy
Implementation Method 2
a control terminal of the switch part is coupled to an output terminal of the trigger part, the switch part is configured to control the input terminal of the switch part to be coupled to the output terminal of the switch part based on the trigger signal received by the control terminal of the switch part from the trigger part
Data Source
AI summary
The present disclosure provides a control circuit, including a power input terminal, an energy storage part, a switch part, and a trigger part, an input terminal of the energy storage part is coupled to the power input terminal, the energy storage part is configured to supply power to the control circuit after storing electric energy, an input terminal of the switch part is coupled to the power input terminal, an output terminal of the switch part is coupled to the power component, a control terminal of the switch part is coupled to an output terminal of the trigger part, and the switch part is configured to control the input terminal of the switch part to be coupled to the output terminal of the switch part based on the trigger signal from the trigger part received by the control terminal of the switch part.