Voltage Multiplying Circuit Using Three Capacitors

Solution Overview

Problem

Conventional voltage multiplying circuits require multiple capacitors, increasing manufacturing costs and design complexity due to the need for voltage stabilizing capacitors.

Innovation Solution

A voltage multiplying circuit is designed using only three capacitors, eliminating the need for voltage stabilizing capacitors by selectively coupling their terminals to different voltage levels through switch elements across various modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If voltage stabling capacitors are used in the voltage multiplying circuit, then voltage stability is improved, but the number of capacitors increases, leading to increased manufacturing cost and design complexity

Engineering Contradiction:

Improvevoltage stabilityVSAvoidnumber of capacitors

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes the voltage stabling capacitors from the conventional voltage multiplying circuit. By extracting these components, the circuit achieves voltage multiplication functionality with fewer capacitors (reducing from 5 to 3 capacitors), thereby lowering manufacturing cost and design complexity while maintaining operational reliability through alternative voltage stabilization mechanisms inherent in the circuit topology.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The capacitors in the patent perform multiple functions: they serve as both charge storage elements for voltage multiplication and as implicit voltage stabilization elements through their strategic connection to fixed voltage potentials (VCI, GND, AVDD). This multi-functionality eliminates the need for separate voltage stabling capacitors, resolving the contradiction between component count and voltage stability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If voltage stabling capacitors are used in the voltage multiplying circuit, then voltage stability is improved, but manufacturing cost increases due to more components

Engineering Contradiction:

Improvevoltage stabilityVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent removes the voltage stabling capacitors from the conventional voltage multiplying circuit. By extracting these components, the circuit achieves voltage multiplication functionality with fewer capacitors (reducing from 5 to 3 capacitors), thereby lowering manufacturing cost and design complexity while maintaining operational reliability through alternative voltage stabilization mechanisms inherent in the circuit topology.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If voltage stabling capacitors are used in the voltage multiplying circuit, then voltage stability is improved, but design complexity increases

Engineering Contradiction:

Improvevoltage stabilityVSAvoiddesign complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes the voltage stabling capacitors from the conventional voltage multiplying circuit. By extracting these components, the circuit achieves voltage multiplication functionality with fewer capacitors (reducing from 5 to 3 capacitors), thereby lowering manufacturing cost and design complexity while maintaining operational reliability through alternative voltage stabilization mechanisms inherent in the circuit topology.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The capacitors in the patent perform multiple functions: they serve as both charge storage elements for voltage multiplication and as implicit voltage stabilization elements through their strategic connection to fixed voltage potentials (VCI, GND, AVDD). This multi-functionality eliminates the need for separate voltage stabling capacitors, resolving the contradiction between component count and voltage stability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

This configuration reduces the number of capacitors required, thereby decreasing manufacturing costs and design complexity while maintaining the ability to generate desired voltages.

Implementation Method 1

a first capacitor, comprising a first terminal and a second terminal, wherein the first terminal of the first capacitor is selectively coupled to a first voltage or a second voltage

Methodology Applied

Scientific EffectCapacitance: Capacitance

Data Source

PatentUS8644039B2Voltage multiplying circuit utilizing no voltage stabling capacitors

Publication Date: 2014.02.04 ILI TECHNOLOGY CORPORATION

AI summary

A voltage multiplying circuit comprising: a first capacitor, comprising a first terminal and a second terminal, wherein the first terminal of the first capacitor is selectively coupled to a first voltage or a second voltage, and the second terminal is selectively coupled to the first voltage or a fourth voltage; a second capacitor, comprising a first terminal and a second terminal, wherein the first terminal of the second capacitor is selectively coupled to the second voltage or the fourth voltage, and the second terminal of the second capacitor is selectively coupled to a third voltage or the fourth voltage; and a third capacitor, comprising a first terminal and a second terminal, wherein the first terminal of the third capacitor is selectively coupled to the second voltage or the fourth voltage, and the second terminal of the third capacitor is selectively coupled to a third voltage or the fourth voltage.