Indication Control Circuit for Workload Feedback
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Solution Overview
Problem
Conventional electronic devices cannot effectively indicate their instantaneous workload using light-emitting units, limiting user awareness of device performance.
Innovation Solution
An indication control circuit that includes a coupling circuit, a square wave signal producing circuit, and an integral circuit, which modulates the light-emitting unit's brightness by converting changes in power current into proportional sawtooth voltage, causing the light to change brightness quickly when workload increases and slowly when workload decreases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a light-emitting unit is used to indicate device state, then user awareness of device status is improved, but the ability to indicate instantaneous workload is not achieved
Solution Approach 1:
The patent changes the parameter of light brightness intensity to represent workload magnitude. By modulating the brightness of the light-emitting unit dynamically according to the instantaneous workload, the system transforms abstract workload data into visible light intensity variations, enabling users to perceive workload changes through optical parameter changes rather than static indicators.
Solution Approach 2:
The patent replaces traditional mechanical or static indication methods with an optical modulation system. Instead of using physical movement or fixed-state indicators, the system uses electrical signal modulation to control light emission characteristics, substituting mechanical indication with optical-electrical conversion for more precise and dynamic workload representation.
2Loss of information
If workload indication is implemented through light modulation, then instantaneous workload communication is improved, but circuit complexity increases
Solution Approach 1:
The indication control circuit is designed to perform multiple functions: it processes workload information from the processor, generates modulation signals for the light-emitting unit, and provides power management. By making the control circuit multi-functional, the patent reduces the need for separate dedicated components for each function, thereby managing complexity while achieving effective workload indication.
Solution Approach 2:
The patent introduces an indication control circuit as an intermediary component between the processor and the light-emitting unit. This intermediary translates complex workload data into appropriate light modulation signals, serving as a bridge that simplifies the overall system architecture by centralizing the indication control function rather than requiring direct complex integration between all components.
3Loss of information
If dynamic light brightness is used to indicate workload changes, then real-time feedback to users is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic light emission cycles rather than continuous emission. The light-emitting unit operates in alternating on/off periods, where the brightness modulation occurs during active periods. This periodic operation maintains real-time feedback capability while significantly reducing average energy consumption compared to continuous illumination, as the light unit is inactive during portions of the cycle.
Solution Approach 2:
The system dynamically adjusts the light emission parameters (brightness intensity and duty cycle) according to the instantaneous workload. During low-workload periods, the light emits at lower intensity or shorter durations, while high-workload periods trigger brighter, longer emissions. This parameter adaptation allows the system to maintain effective feedback communication while minimizing energy consumption by matching emission intensity to actual information transmission needs.
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
Effectively communicates the electronic device's workload through dynamic light brightness changes, providing users with timely feedback on device performance.
Implementation Method 1
a coupling circuit, a square wave signal producing circuit and an integral circuit. The coupling circuit is used to induce the current output by the power input circuit and produce a corresponding induced voltage proportional to the amount of current output by the power input circuit
Implementation Method 2
The square wave signal producing circuit is connected to the coupling circuit, and converts the induced voltage produced by the coupling circuit to a square wave voltage Vf with a certain frequency. An amplitude of the square wave voltage Vf is proportional to the induced voltage
Implementation Method 3
The integral circuit is connected between the square wave signal producing circuit and the light-emitting unit. The integral circuit modulates the square wave voltage to produce a sawtooth voltage Vs and power the light-emitting unit by using the sawtooth voltage Vs
Implementation Method 4
The light-emitting unit emits light, and a brightness of the emitted light is proportional to a voltage and a current provided to the light-emitting unit
Data Source
AI summary
A workload indicating control circuit includes a coupling circuit, a square wave signal producing circuit, and an integral circuit. The coupling circuit induces a current output by a power input circuit of an electronic device and produces a proportional induced voltage, the current output by the power input circuit being proportional to the workload of the electronic device. The square wave signal producing circuit converts the induced voltage from the coupling circuit into a square wave voltage with corresponding amplitude. The integral circuit takes the square wave signal and modulates the square wave voltage into a sawtooth voltage, to drive the light-emitting unit to emit light according to the sawtooth voltage.