Power Driver Circuit Standby Mode Bypass Control
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Solution Overview
Problem
Existing lighting equipment in standby mode continues to supply power to electronic components like processors, leading to increased circuit complexity due to the need for additional circuits to bypass power, which complicates energy conservation efforts.
Innovation Solution
A driver circuit comprising a conversion circuit, a bypass circuit, and a control circuit that adjusts output current and voltage to enable a standby mode with reduced power consumption without additional circuits, allowing continuous power supply to essential components while minimizing overall circuit complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If additional circuits (such as auxiliary winding) are employed to bypass power for intelligent control in standby mode, then energy saving is achieved, but device complexity increases
Solution Approach 1:
The patent merges the standby mode power management function into the existing power conversion circuit by utilizing the auxiliary winding for both normal operation and standby mode control. The control circuit intelligently switches the auxiliary winding between driving the load unit and bypassing power to essential components, eliminating the need for separate additional circuits and reducing overall device complexity while maintaining energy saving capabilities
Solution Approach 2:
The auxiliary winding is designed to serve multiple functions: it provides power to the load unit during normal operation, bypasses power to essential components during standby mode, and enables intelligent control in both modes. This multi-functionality eliminates the need for dedicated separate circuits for each function, thereby reducing circuit complexity while achieving energy conservation
2Reliability
If output current continues to flow to light emitting elements in standby mode, then electronic components remain powered, but power consumption increases
Solution Approach 1:
The control circuit dynamically adjusts the switching state of the auxiliary winding based on the operational mode (normal or standby). In standby mode, it switches to bypass configuration to reduce power consumption while maintaining power supply to essential components. This dynamic adaptation allows the system to balance reliability and energy efficiency by changing the power distribution topology according to real-time needs
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 solution achieves low power consumption in standby mode with simplified circuit operations, reducing complexity and cost by controlling output current through a bypass circuit instead of the load unit, enabling efficient energy management without additional components.
Implementation Method 1
a conversion circuit (110), a bypass circuit (130), and a control circuit (120). The conversion circuit is configured to convert an input voltage into an output voltage
Data Source
AI summary
A driver for driving a load unit includes a conversion circuit, a bypass circuit and control circuit. The conversion circuit is configured for converting an input voltage into an output voltage, in which the load unit is coupled to the conversion circuit to receive the output voltage and an output current. The bypass circuit is electrically coupled to the conversion circuit and the load unit. The control circuit controls the output current to flow through the load unit to drive the load unit in a driving mode. The control circuit controls the output current to flow through the bypass circuit in a standby mode, in which the output current in the standby mode is lower than the output current in the driving mode.