Charge Recycling Memory Driving Circuit
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Solution Overview
Problem
Conventional memory driving circuits waste charge energy as discharged parasitic capacitors are not reused during the charging process of other capacitors, leading to inefficiencies in power consumption.
Innovation Solution
A charge recycling method is implemented in the driving circuit, where switches form short-circuit loops between capacitors, allowing stored charges to be recycled from one capacitor to another, reducing power consumption and optimizing voltage levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional driving circuits charge parasitic capacitors through voltage supply, then the capacitors are charged to required voltage levels, but the discharged charges are wasted and power consumption increases
Solution Approach 1:
The patent recovers charge energy that would otherwise be wasted by implementing a charge recycling mechanism. When a parasitic capacitor discharges, its charges are not simply discarded but are recovered and reused to charge other capacitors, thereby reducing overall power consumption and energy loss in the driving circuit.
Solution Approach 2:
The driving circuit performs self-service by using its own discharged charges to facilitate the charging process of other capacitors. The charge recycling mechanism allows the circuit to reuse its internal charge resources, reducing dependence on external power supply and minimizing energy waste.
2Stability of the object's composition
If charges are discharged from parasitic capacitors, then voltage levels are reset, but the discharged charges cannot be utilized and are wasted
Solution Approach 1:
Instead of discarding the discharged charges from parasitic capacitors, the patent recovers them through charge recycling. The charges are reused to charge other capacitors in the circuit, thereby maintaining voltage level stabilization while preventing energy loss.
Solution Approach 2:
The charge recycling mechanism ensures continuity of useful action by continuously reusing charges throughout the operating cycle. Rather than allowing charges to be wasted after discharge, the system maintains a continuous cycle of charge recovery and reuse, maximizing energy efficiency.
3Reliability
If multiple parasitic capacitors are charged sequentially, then each capacitor is charged to POWER voltage, but the charging process takes time and consumes power
Solution Approach 1:
The patent implements continuous useful action through charge recycling, where discharged charges from one capacitor immediately serve to charge another capacitor. This eliminates idle time between charging operations and ensures that capacitors are charged completely and reliably without unnecessary delays or power consumption.
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 recycling method effectively reduces power consumption and shortens charging time by reusing stored charges, stabilizing voltage levels and improving overall efficiency in memory driving circuits.
Implementation Method 1
charges stored in one of the first capacitor and the second capacitor flow to the other one of the first capacitor and the second capacitor in a direction from a higher voltage level to a lower voltage level
Implementation Method 2
the first switch, the third switch and the fourth switch are turned on, the second switch and the fifth switch are turned off so that a voltage level of the first capacitor is the second voltage and a voltage level of the second capacitor is the first voltage
Data Source
AI summary
A driving circuit includes a first switch, a first driver and a second driver. The first switch has a first terminal coupled to a first voltage. The first driver includes a second switch and a third switch. The second switch has a first terminal coupled to a second terminal of the first switch, and a second terminal coupled to a first capacitor. The third switch has a first terminal coupled to the second terminal of the second switch, and a second terminal coupled to a second voltage. The second driver includes a fourth switch and a fifth switch. The fourth switch has a first terminal coupled to the second terminal of the first switch, and a second terminal coupled to a second capacitor. The fifth switch has a first terminal coupled to the second terminal of the fourth switch, and a second terminal coupled to the second voltage.