Pulse Generation Level Shifter for Flexible Sequential Outputs
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Solution Overview
Problem
Existing level shift ICs either consume many pins due to requiring an equal number of input and output clock signals, or they are inflexible in producing a fixed number of sequential output signals, making them unsuitable for applications with varying output needs.
Innovation Solution
A level shift device with a pulse generation circuit that uses three input signals to control the production of pulse output signals, allowing for adjustable output numbers within each cycle, where the third input signal determines the termination and start of cycles, enabling flexible output configurations without increasing pin consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a level shift IC requires an equal number of input and output clock signals, then the input and output connections are simple, but the number of pins consumed increases
Solution Approach 1:
The level shift IC is designed with a universal interface that accepts multiple input signal configurations (single input, dual input, or multiple inputs) and automatically adapts to produce the required number of output signals. This multi-functionality allows the same IC to replace multiple different ICs, reducing pin consumption while maintaining operational simplicity.
2Quantity of substance
If a level shift IC uses a fixed number of sequential output signals, then fewer input pins are consumed, but the output flexibility decreases
Solution Approach 1:
The level shift IC incorporates dynamic control mechanisms that allow the output signal configuration to be adjusted based on application requirements. The IC can dynamically switch between producing sequential outputs, parallel outputs, or a combination thereof, providing adaptability without increasing pin consumption.
Solution Approach 2:
The output signals are segmented into independently controllable groups, allowing selective activation of different output channels. This segmentation enables the IC to provide flexible output configurations (different numbers and types of outputs) while maintaining a compact pin structure.
3Device complexity
If a level shift IC produces a fixed number of output signals, then the design is simplified, but it cannot accommodate applications with varying output needs
Solution Approach 1:
The IC employs a universal design that can function in multiple modes (single-input single-output, single-input multi-output, multi-input multi-output) within the same device architecture. This universality maintains design simplicity while achieving high adaptability to different application requirements.
Solution Approach 2:
The IC allows dynamic parameter changes in its output configuration through control signals or programming, enabling the same hardware design to adapt to different output requirements without physical reconfiguration or redesign.
Data Source
AI summary
The present invention teaches a level shift device and a related method. The level shift device contains a first input terminal, a second input terminal, a number of output terminals, and a pulse generation circuit. The first input terminal is for receiving a first pulse input signal. The second input terminal is for receiving a second pulse input signal. The pulse generation circuit cyclically produces pulse output signals, one on each output terminal, according to the first and second pulse input signals. The level shift device further contains a third input terminal for receiving a third pulse input signal. The pulse generation circuit controls the number of pulse output signals produced within each cycle according to third pulse input signal. The present invention is able to produce various numbers of pulse output signals, which is flexible for different applications without investing a new design.