Sampled Voltage Conversion Circuit for Low-to-High Signal Shifting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing voltage conversion schemes for integrated circuits require multiple level shifters, leading to high power consumption and large component occupancy due to the need for signal boosting across circuits with different operating voltages, especially when transitioning from low-speed mode.
Innovation Solution
A voltage conversion circuit with a first input module operating at a higher voltage and a second input module that samples and outputs a signal, using transistors and inverters to convert a low-voltage input signal to a higher voltage output signal, reducing component count and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a level shifter is used to boost the signal from low-voltage circuits to high-voltage circuits, then the signal transmission reliability is improved, but the component occupied area and power consumption increase
Solution Approach 1:
The patent merges multiple level shifters into a single voltage conversion circuit that handles multiple interface signals simultaneously. The first input module receives multiple low-voltage signals and converts them to high-voltage signals through a unified circuit structure, eliminating the need for separate level shifters for each signal and thereby reducing component occupied area while maintaining signal transmission reliability.
Solution Approach 2:
The voltage conversion circuit is designed with multi-functionality to handle multiple interface signals through a single circuit. The first input module and second input module work together to convert various low-voltage signals to high-voltage signals, making the circuit universal for different signal types and reducing the overall component count compared to using dedicated level shifters for each signal.
2Reliability
If multiple level shifters are used to boost signals from low-voltage circuits, then signal transmission reliability is improved, but total power consumption increases
Solution Approach 1:
The patent combines multiple level shifting functions into a single voltage conversion circuit. By merging the functionality of multiple level shifters into one unified circuit with shared components (first input module, second input module, and output module), the total power consumption is reduced while maintaining signal transmission reliability for all interface signals.
Solution Approach 2:
The voltage conversion circuit provides universal signal conversion capability for multiple interface signals through a single power-consuming unit. This multi-functional approach eliminates the redundant power consumption that would result from operating multiple separate level shifters, thereby reducing total power consumption while ensuring reliable signal transmission.
3Use of energy by stationary object
If the operating voltage of some circuits is lowered to reduce power consumption, then power consumption is reduced, but signal transmission to high-voltage circuits becomes problematic
Solution Approach 1:
The voltage conversion circuit acts as an intermediary between low-voltage circuits and high-voltage circuits. The first input module receives signals from low-voltage circuits, and through the second input module and output module, converts and transmits them to high-voltage circuits. This intermediary structure enables low-voltage operation for power consumption reduction while ensuring reliable signal transmission to high-voltage circuits through proper voltage conversion.
Data Source
AI summary
A voltage conversion circuit is provided. The circuit includes a first input module and a second input module. The first input module is connected to a first voltage and has a first input terminal for receiving an input signal and outputting a conversion signal, a high level of the input signal is a second voltage which is less than the first voltage; The second input module is connected to the first input module and has a second input terminal and an output terminal, the second input terminal is configured to receive a sampling signal, and the second input module is configured to sample the conversion signal according to the sampling signal and output an output signal via the output terminal.