Charge Sharing Circuit for Integrated Line Precharge
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Solution Overview
Problem
Precharge style lines in integrated circuits waste charge and power due to frequent precharging and long line lengths, especially in high-speed operations, which increases power consumption and heat generation in mobile devices.
Innovation Solution
Implementing charge sharing systems that couple precharge style lines with charge sharing devices, allowing charge transfer between lines to reduce the amount of charge needed for precharging, thereby minimizing power consumption and enabling faster operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If precharge style lines are used to carry electrical signals, then the lines may be faster and have lower input capacitance, but charge is wasted due to frequent precharging
Solution Approach 1:
The patent merges multiple precharge style lines into groups and shares precharge resources among them. By coupling lines in a group together, the precharge operation on one line can benefit adjacent lines, reducing redundant precharging operations and minimizing charge waste while maintaining fast signal transmission.
2Adaptability or versatility
If long lines are used in integrated circuits, then more functionality can be integrated, but the charge required for precharging increases
Solution Approach 1:
The patent segments long lines into multiple shorter segments and organizes them into groups. By dividing the long lines and sharing precharge operations within groups, the total charge required for precharging is reduced compared to charging each long line independently, while still achieving the required circuit integration.
3Speed
If precharge operations are performed frequently to maintain fast operation, then operational speed is improved, but power consumption increases
Solution Approach 1:
The patent combines multiple lines into groups where precharge operations are shared. This allows the system to maintain fast operational speed through frequent precharging while reducing power consumption by eliminating redundant precharge operations on adjacent lines within the same group.
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 charge sharing systems reduce power consumption and enhance operational speed by minimizing the charge required for precharging, thus addressing the inefficiencies of traditional precharge style lines in integrated circuits.
Implementation Method 1
charge sharing systems that couple precharge style lines with charge sharing devices, allowing charge transfer between lines
Data Source
AI summary
Systems, circuits, and methods are disclosed for charge sharing. In one such example system, a first line is configured to be driven to a first voltage representative of data to be placed on the first line and then precharged to a first precharge voltage. A second line is configured to be driven to a second voltage representative of data to be placed on the second line and then precharged to a second precharge voltage. A charge sharing device is coupled between the first line and the second line. The charge sharing device is configured to selectively allow charge from the first line to flow to the second line after the first and second lines are driven to the respective first and second voltages representative of data to be placed on the respective lines.