Current Reuse Circuit for Display Power Efficiency
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Solution Overview
Problem
In conventional high-voltage circuits, current collected from the bottom voltage rail is not reused, resulting in unnecessary power consumption as it is flushed to the ground or reference potential.
Innovation Solution
A circuit configuration that includes a first circuit processing signals between a first top and bottom voltage, a second circuit processing signals between a second top and bottom voltage, and a second power source that receives current from the first circuit to provide the second top voltage, allowing current reuse by redirecting it to the second circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If current from the bottom voltage rail is flushed to ground or reference potential, then the circuit operation is simple, but power is consumed unnecessarily
Solution Approach 1:
The patent merges the current path from the first circuit's bottom voltage rail with the second circuit's power supply path. The current that would normally be discarded to ground is instead routed to the second power source, which uses it to generate the second top voltage. This combining of current paths eliminates the waste of energy while integrating the function of current reuse into the existing circuit architecture.
Solution Approach 2:
The patent recovers the current that would otherwise be discarded to ground or reference potential. By capturing the current from the bottom voltage rail of the first circuit and redirecting it to the second power source, the system recovers this energy resource and puts it to productive use by generating the second top voltage, thereby reducing overall power consumption.
2Loss of energy
If current is reused by redirecting to the second circuit, then power consumption is reduced, but the circuit configuration becomes more complex
Solution Approach 1:
The second power source serves multiple functions: it generates the second top voltage for the second circuit and simultaneously acts as a current reuse mechanism by accepting current from the first circuit's bottom voltage rail. This multi-functionality reduces the need for separate current recycling circuits, thereby limiting the increase in overall system complexity while achieving energy reuse.
3Use of energy by stationary object
If current from first circuit is provided to second power source, then unnecessary power consumption is reduced, but the voltage and current management becomes more complex
Solution Approach 1:
The second power source acts as an intermediary between the first circuit and the second circuit. It receives current from the first circuit's bottom voltage rail and transforms it into the second top voltage needed by the second circuit. This intermediary role simplifies the overall management by providing a single component that handles both current reception and voltage transformation, rather than requiring separate control mechanisms.
Data Source
AI summary
A display apparatus includes a first circuit configured to process a signal between a first top voltage and a first bottom voltage, a second circuit configured to process a signal between a second top voltage and a second bottom voltage, and a second circuit power source configured to receive a current provided by the first circuit and provide the second top voltage to the second circuit.