Reconfigurable Logic Gate Circuit Without External Initialization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing reconfigurable logic gate devices have large circuit structures and require high voltages for operation, along with an external initialization circuit, which increases the footprint area and power consumption.
Innovation Solution
A logic gate device comprising a transistor and three resistors, where the resistors are connected between input terminals, the transistor gate, and a voltage supply, allowing for reconfiguration by tuning the resistance of one resistor to perform different logic functions without an external initialization circuit, using a 1T1R+2R circuit configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing reconfigurable logic gate devices are used, then logic function reconfiguration is achieved, but circuit structure becomes large and footprint area increases
Solution Approach 1:
The patent merges multiple logic gate functions into a single compact circuit structure using one transistor and three resistors. The shared resistor configuration allows multiple logic functions (NAND, NOR, AND, OR) to be implemented in the same physical space, dramatically reducing the footprint area compared to traditional separate logic gate implementations.
Solution Approach 2:
The logic gate device achieves multi-functionality by allowing a single circuit configuration to perform different logic operations. By selectively connecting the resistors to different voltage levels (Vdd or Gnd), the same physical circuit can function as NAND, NOR, AND, or OR gates, providing universal logic operations without requiring separate dedicated circuits for each function.
2Adaptability or versatility
If existing reconfigurable logic gate devices are used, then logic function reconfiguration is achieved, but external initialization circuit is required
Solution Approach 1:
The logic gate device performs self-initialization by using its own internal transistor and resistor network to set the initial states. The transistor can be turned on or off to automatically charge or discharge the resistors to appropriate voltage levels, eliminating the need for external initialization circuits. This self-service mechanism simplifies the overall system architecture by removing dependent external components.
3Adaptability or versatility
If existing reconfigurable logic gate devices are used, then logic function reconfiguration is achieved, but power consumption increases
Solution Approach 1:
The logic gate device uses periodic switching of the transistor to achieve reconfiguration between different logic functions. Instead of maintaining continuous high-power states, the transistor is switched on only when needed to change the resistance values and logic function, then turned off to maintain the state with minimal power. This periodic action reduces average power consumption while maintaining reconfigurability.
Data Source
AI summary
According to various embodiments, a logic gate device includes a transistor, a first resistor, a second resistor and a third resistor. The first resistor is connected between a first input terminal of the logic gate device and a gate terminal of the transistor. The second resistor is connected between a second input terminal of the logic gate device and the gate terminal. The third resistor is connected between a voltage supply terminal and a first terminal of the transistor. The logic gate device is configured to generate an output voltage at the first terminal based on input voltages received at the first input terminal and the second input terminal.