Conversion Controller Circuit for Smart Lighting Power Management

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Solution Overview

Problem

Conventional smart lighting systems continue to consume power unnecessarily after luminance adjustments, as the wireless communication module remains in active operation mode despite no need for continuous command transmission.

Innovation Solution

A lighting system with a conversion controller circuit that adjusts the power supply to the wireless communication module, allowing it to enter a standby mode by controlling the output voltage, reducing power consumption by switching between high and low voltage levels based on command requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the wireless communication module remains in active operation mode to ensure immediate responsiveness to control commands, then the system responsiveness is improved, but the power consumption increases unnecessarily after luminance adjustments are completed

Engineering Contradiction:

Improvesystem responsivenessVSAvoidpower consumption of wireless communication module

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The patent applies the dynamics principle by making the operating state of the wireless communication module changeable between active and standby modes. The conversion controller circuit dynamically switches the module between these states based on whether command transmission is needed, allowing the system to respond quickly when required while conserving power during idle periods.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by adjusting the power supply voltage to the wireless communication module. The conversion controller circuit changes the voltage parameter from a higher level (during active operation) to a lower level (during standby), thereby reducing power consumption while maintaining the ability to restore full functionality when needed.

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If the wireless communication module enters standby mode to reduce power consumption after luminance adjustment, then the power consumption is reduced, but the system responsiveness may be delayed

Engineering Contradiction:

Improvepower consumption of wireless communication moduleVSAvoidresponse time for control commands

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The patent applies preliminary action by keeping the conversion controller circuit in a ready state even when the wireless communication module is in standby mode. The controller continuously monitors for incoming commands and can immediately wake up the module or handle simple commands without full module activation, thus reducing the effective response time delay.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements periodic action through the conversion controller circuit's continuous monitoring cycle. The controller periodically checks for command signals and can rapidly transition the wireless communication module from standby to active state when a command is detected, minimizing the effective idle time and maintaining system responsiveness.

Inventive Principle:

Principle #19Periodic action

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 system effectively reduces power consumption by enabling the wireless communication module to enter a sleep mode after luminance adjustments, minimizing active operation power usage and extending battery life.

Implementation Method 1

a conversion controller circuit, which is configured to operably receive the input power and convert the input power to a adjustable output voltage

Methodology Applied

Scientific EffectElectrical power conversion:

Implementation Method 2

a power stage including at least one power switch, wherein the power stage is configured to operably convert the input power to the output power

Methodology Applied

Scientific EffectElectrical power conversion:

Implementation Method 3

an AC-DC converter circuit, which is coupled to the power supply circuit and which is configured to operably receive an AC power and operably convert the AC power to the input power

Methodology Applied

Scientific EffectAC to DC conversion:

Data Source

PatentUS11304272B2Lighting system and conversion controller circuit thereof

Publication Date: 2022.04.12 RICHTEK TECH

AI summary

A lighting system includes: a power supply circuit, an AC-DC converter circuit and a wireless communication module. The wireless communication module receives an external command from a wireless communication device and generates an adjustment command according to the received external command. The adjustment command includes a luminance adjustment command and a driving power control command. The power supply circuit includes a power stage and a conversion controller circuit. The conversion controller circuit supplies a adjustable output voltage to the wireless communication module, to power the wireless communication module. The conversion controller circuit controls the power stage according to the luminance adjustment command, to adjust an output current of an output power, thereby adjusting the luminance of a light emission device. And, the conversion controller circuit controls the adjustable output voltage according to the driving power control command, to regulate the adjustable output voltage to a high voltage level or a low voltage level.