HVIC Internal Charge Pumping Voltage Source
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Solution Overview
Problem
High voltage gate driver ICs used in applications like Plasma Display Panels require external floating voltage sources, which increase costs and circuit complexity due to the need for additional regulation circuits and space.
Innovation Solution
Incorporating an internal charge pumping voltage source within the HVIC to regulate external floating voltage sources, reducing the need for external regulation circuits and minimizing auxiliary circuits, space, and cost by using a simplified switch driving scheme with low voltage switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external floating voltage sources with regulation circuits are used, then voltage regulation is achieved, but circuit complexity and cost increase
Solution Approach 1:
The patent combines the charge pumping voltage source and regulation functionality into the HVIC itself, merging previously separate external components (floating voltage sources and regulation circuits) into a single integrated device. This eliminates the need for external regulation circuits while maintaining voltage regulation capability through internal charge pumping circuits controlled by the HVIC.
2Reliability
If external floating voltage sources with regulation circuits are used, then voltage regulation is achieved, but circuit space increases
Solution Approach 1:
The patent integrates the charge pumping voltage source and regulation functionality into the HVIC, eliminating the need for separate external floating voltage sources and regulation circuits. This consolidation significantly reduces the circuit space required while maintaining voltage regulation capability through the internal charge pumping mechanism.
3Reliability
If external floating voltage sources with regulation circuits are used, then voltage regulation is achieved, but cost increases
Solution Approach 1:
The patent integrates the charge pumping voltage source and regulation functionality into the HVIC, eliminating the need for separate external floating voltage sources and regulation circuits. This consolidation reduces component count and assembly complexity, thereby reducing manufacturing cost while maintaining voltage regulation capability.
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 internal charge pumping voltage source eliminates the need for external voltage source regulation circuits, minimizing circuit size and cost while maintaining effective voltage regulation for high voltage applications.
Implementation Method 1
an HVIC having at least one internal charge pumping voltage source circuit
Data Source
AI summary
A circuit for using a high voltage gate driver IC (HVIC) for regulation of external floating voltage sources without use of regulation circuits. The circuit including high and low switches; at least one external voltage source coupled to the high and low switches; an HVIC having at least one internal charge pumping voltage source circuit, the HVIC being coupled to gate terminals of the high and low switches; and at least one charge pumping capacitor coupled to the at least one internal charge pumping voltage source circuit for regulating the external voltage of at least one external voltage source.