Series Gate Driver Circuit With Voltage Regulation Against Noise
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Integrated gate drive circuits in liquid crystal displays suffer from increased noise and bias distortion due to the lack of a voltage regulator circuit, leading to dysfunction over time, causing the displays to malfunction.
Innovation Solution
A driving unit comprising a primary circuit and two voltage regulator circuits, along with a gate driver circuit that includes multiple driving units connected in series, which receive frequency signals and transmit output signals sequentially, incorporating switches and capacitors to manage voltage regulation and reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If an integrated gate drive circuit is used without a voltage regulator circuit, then the device complexity is reduced, but noise increases and bias distortion occurs leading to dysfunction over time
Solution Approach 1:
The integrated gate drive circuit is divided into multiple driving units (first driving unit, second driving unit, third driving unit, fourth driving unit) that operate independently but are connected in series. Each driving unit has its own voltage regulator circuit, allowing localized voltage control and reducing overall noise and bias distortion while maintaining system integration.
Solution Approach 2:
Voltage regulator circuits are introduced as intermediary components between the signal input and the switching elements in each driving unit. These voltage regulator circuits stabilize the operating voltage, filter noise, and prevent bias distortion, thereby improving reliability without significantly increasing overall device complexity.
2Reliability
If voltage regulator circuits are added to reduce noise and bias distortion, then reliability improves, but device complexity increases
Solution Approach 1:
The voltage regulator circuits are merged with the driving units in a integrated manner, where the voltage regulation function is combined with the signal processing and switching functions. This merging approach allows multiple functions to share common components and signal paths, reducing the overall increase in device complexity while maintaining improved reliability.
Solution Approach 2:
The driving units are designed with multi-functionality, where each unit can perform voltage regulation, signal processing, and switching operations. The series connection configuration allows the system to achieve both integration and localized control, making the added complexity worthwhile for improved long-term functionality.
3Productivity
If driving units are connected in series to transmit signals sequentially, then the gate driver circuit can control multiple columns, but the duration of action increases requiring proper timing management
Solution Approach 1:
The driving units operate in a periodic sequential manner, where each driving unit activates in turn to transmit signals to different column lines. This periodic action allows the system to scan through multiple columns systematically, achieving complete column control within a defined time period while maintaining manageable timing for each individual unit.
Solution Approach 2:
The series connection of driving units enables continuous signal transmission across multiple columns without interruption. As one driving unit completes its signal transmission, the next driving unit immediately takes over, ensuring continuous coverage of all column lines and maximizing productivity while distributing the total duration across multiple sequential operations.
Data Source
AI summary
The present invention discloses a gate driver circuit. The gate driver circuit includes a plurality of driving units electrically connected in series, wherein the gate driver circuit receives a plurality of frequency signals and the driving units transmit a plurality of output signals sequentially. Furthermore, each driving unit includes a primary circuit, a first voltage regulator circuit and a second voltage regulator circuit.