Oscillator Fault Detection Circuit Using LED Visual Indication

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional methods for detecting oscillator faults are costly due to the need for expensive instruments like oscilloscopes and power supplies, and there is a demand for a more affordable and portable solution.

Innovation Solution

A detection device comprising an oscillator control circuit, a frequency-decreasing circuit with a capacitor and resistor, and a display circuit using a light emitting diode to visually indicate the oscillator's status, allowing for fault detection without costly equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional detection methods using oscilloscope and power supply are employed, then measurement precision is improved, but device cost increases

Engineering Contradiction:
Improveoscillator fault detection accuracyVSAvoiddetection device cost
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces expensive, sophisticated detection equipment (oscilloscope and power supply) with inexpensive, simple components (LED, resistors, capacitors, and basic logic gates). The LED serves as a low-cost visual indicator that can reliably show oscillator status without requiring complex instrumentation. This substitution dramatically reduces device cost while maintaining sufficient detection capability for practical use.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent substitutes electronic measurement systems with optical visualization. Instead of using electronic oscilloscopes to display waveforms, the invention uses an LED that converts electrical oscillation signals directly into visible light patterns. The oscillator's electrical signals drive the LED to produce visual flash patterns that can be observed directly, replacing complex electronic measurement and display systems with simple optoelectronic conversion.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If conventional detection equipment is used, then reliability of detection is improved, but portability deteriorates

Engineering Contradiction:
Improveoscillator detection reliabilityVSAvoiddetection device weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent replaces heavy, professional-grade detection equipment with lightweight, consumer-grade components. The use of an LED instead of an oscilloscope, and simple logic gates instead of complex power supplies, dramatically reduces the weight and size of the detection device. The resulting device is portable and can be easily carried to field locations while maintaining reliable detection functionality through the robust visual indication system.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent replaces heavy electronic measurement equipment with a lightweight optoelectronic system. The LED-based visual indicator system is significantly lighter than oscilloscope equipment and requires minimal power consumption. The direct coupling of the oscillator signal to the LED through simple circuitry eliminates the need for heavy power supplies and complex signal processing equipment, achieving both portability and reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If simple detection components are used, then device cost is reduced, but measurement precision deteriorates

Engineering Contradiction:
Improvedetection device simplicityVSAvoidoscillator fault detection accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent uses the LED's light emission (color/brightness changes) as the detection indicator. The LED converts the oscillator's electrical signals into visible light patterns, where the presence, absence, or pattern of light directly indicates the oscillator's operational status. This optical visualization provides clear, unambiguous detection results that are easily observable and interpret, maintaining high measurement precision despite the simplicity of the components used.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent substitutes complex electronic measurement systems with simple optoelectronic conversion using an LED. The LED acts as a direct visual transducer that converts electrical oscillation signals into observable light patterns. This substitution maintains detection accuracy because the LED responds directly to the oscillator's output signal, providing real-time visual feedback about oscillator functionality without requiring complex signal processing or measurement equipment.

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

Enables accurate and cost-effective detection of oscillator faults through visual observation of a light emitting diode's brightness, reducing the need for expensive instruments and providing a portable solution.

Implementation Method 1

a display circuit using a light emitting diode to visually indicate the oscillator's status

Methodology Applied
Scientific EffectLight emitting diode: Light Emitting Diode

Data Source

PatentUS7443253B2Detection device for detecting oscillator
Publication Date: 2008.10.28 ADVANCED SEMICON ENG INC
  • US7443253B2 patent drawing
  • US7443253B2 patent drawing
  • US7443253B2 patent drawing

AI summary

A detection device for detecting an oscillator is provided. The detection device includes an oscillator control circuit, a frequency-decreasing circuit and a display circuit. The oscillator control circuit is used for outputting the oscillator signal of the oscillator. The frequency-decreasing circuit is connected to the output of the oscillator control circuit and has a capacitor suitable for charging and discharging and a resistor, which can adjust the time constant of the oscillator signal. The display circuit is connected to the frequency-decreasing circuit for showing the output signal of the frequency-decreasing circuit. The detection device can decide whether the oscillator is normal or broken by observing a component of the display circuit, for example, the twinkling of a light emitting diode of the display circuit.