Integrated Circuit Voltage Stabilization for Logic Protection

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Solution Overview

Problem

The miniaturization of electronic apparatuses has led to increased voltage accuracy requirements due to lower power supply voltages, causing peak voltages to exceed the maximum rated voltage of logic circuits, potentially damaging them, and existing technologies fail to effectively manage these fluctuations for cost reduction and integration.

Innovation Solution

An integrated circuit with a trigger signal generating unit, input unit, pulse signal generating unit, detecting unit, and output unit that generates and manages pulse signals with a coil and capacitor to stabilize voltage levels, stopping pulse output based on detection and satisfying predetermined conditions to prevent peak voltage exceedance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If circuit miniaturization is promoted to increase integration degree, then integration degree is improved, but voltage accuracy requirement increases causing peak voltage to exceed maximum rated voltage of logic circuits

Engineering Contradiction:

Improveintegration degreeVSAvoidvoltage accuracy

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The detecting unit detects the reset signal before the logic circuit is damaged by overvoltage, and the stopping unit stops the pulse signal output in advance based on this detection, preventing the voltage peak from exceeding the logic circuit's maximum rated voltage

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The detecting unit continuously monitors the reset signal state and provides feedback to the stopping unit, which adjusts the pulse signal output accordingly - when reset signal is detected, pulse output is stopped; when reset signal is not detected for a predetermined time, pulse output resumes

Inventive Principle:

Principle #23Feedback

2Use of energy by moving object

If switching type power supply circuit is used for higher energy efficiency, then energy efficiency is improved, but peak voltage fluctuations occur that can damage logic circuits

Engineering Contradiction:

Improveenergy efficiencyVSAvoidpeak voltage damage

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The detecting unit and stopping unit act as intermediaries between the pulse signal generating unit and the logic circuit, monitoring the reset signal state and controlling the pulse signal output to prevent harmful voltage peaks from reaching the logic circuit while allowing the switching power supply to maintain its high energy efficiency

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention replaces mechanical voltage regulation methods with an electronic control system consisting of detecting and stopping units that use electrical signals (reset signal monitoring) to control the pulse signal output, enabling faster and more precise voltage protection

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 solution effectively stabilizes voltage levels, preventing peak voltage exceedance and ensuring the safe operation of logic circuits, thereby enabling miniaturization and cost reduction of electronic apparatuses while maintaining voltage accuracy.

Implementation Method 1

a pulse signal generating unit configured to generate and output a pulse signal with the predetermined voltage value to a power supply unit configured to generate a voltage to be supplied to the control unit with a coil and a capacitor

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

Methodology Applied

Scientific EffectCapacitance: Capacitance

Data Source

PatentUS7898231B2Integrated circuit and electronic apparatus

Publication Date: 2011.03.01 CANON KK

AI summary

An integrated circuit includes a trigger signal generating unit configured to generate a trigger signal for setting a control unit connected thereto in a reset state, an input unit configured to input a DC voltage of a predetermined voltage value, a pulse signal generating unit configured to generate and output a pulse signal with the predetermined voltage value to a power supply unit configured to generate a voltage to be supplied to the control unit with a coil and a capacitor, a detecting unit configured to detect generation of an event which requires an output of the trigger signal, a stopping unit configured to stop outputting of the pulse signal based on a detection result from the detecting unit, and an output unit configured to output the trigger signal generated by the trigger signal generating unit after outputting of the pulse signal is stopped and a predetermined condition is satisfied.