Wireless Switching Circuit for Standby Power Management
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Solution Overview
Problem
Existing solutions for reducing power consumption in electronic equipment in standby mode are inefficient, as they often require unplugging the equipment, which is not practical.
Innovation Solution
A wireless switching circuit comprising a voltage converter, single chip microcomputer, infrared sensor unit, zero trigger circuit, thyristor, charging capacitor, and switch, which automatically disconnects the equipment from the power source when in standby mode using infrared signals to control the thyristor and switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the electronic equipment remains connected to the power source in standby mode, then the equipment is ready for immediate use, but power consumption continues
Solution Approach 1:
The system automatically detects standby state through infrared sensor and control circuit, then autonomously disconnects the power connection via relay switch without requiring user intervention. The equipment serves itself by monitoring its own operational state and making appropriate power management decisions.
Solution Approach 2:
The patent replaces the manual mechanical action of unplugging the power cord with an automated electromagnetic switching system. The relay switch, controlled by the circuit board detecting infrared signals, electronically disconnects power without requiring physical manual operation.
2Loss of energy
If the equipment is automatically disconnected from power source, then power consumption is reduced, but manual control is lost
Solution Approach 1:
The infrared sensor continuously monitors for remote control signals, and the control circuit processes this feedback information to determine whether the equipment should be in power-on or power-off state. This closed-loop feedback system allows automatic power management while still responding to user commands when needed.
Solution Approach 2:
The control circuit serves multiple functions: it processes infrared signals from remote controls, determines operational states, controls the relay switch for power disconnection, and can also wake the equipment from standby when a power-on signal is received. This multi-functionality maintains manual control capability while enabling automatic power saving.
3Extent of automation
If a wireless switching circuit is implemented, then automatic power disconnection is achieved, but device complexity increases
Solution Approach 1:
The power management system is divided into distinct functional modules: infrared sensor unit for signal detection, control circuit for processing and decision-making, relay switch for power disconnection, and indicator light for status display. This segmentation allows each component to perform its specific function efficiently while making the overall system easier to understand and maintain.
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 efficient power saving by automatically disconnecting the equipment from the power source during standby mode without the need for manual intervention, reducing energy consumption.
Implementation Method 1
an infrared sensor unit 103, which is used to output a power signal or a standby signal to the SCM 102 according to infrared signals sensed by the infrared sensor unit 103
Implementation Method 2
An output end of the zero trigger circuit 104 is connected to the thyristor Q1. The thyristor Q1 is connected to a socket 30
Data Source
AI summary
A wireless switching circuit includes a charging capacitor, a voltage converter, an infrared sensor unit, a single chip microcomputer (SCM), a zero trigger circuit, and a thyristor. The charging capacitor is used to store and supply power. The voltage converter is used to convert alternating current (AC) voltage into direct current (DC) voltage to charge the charging capacitor. The infrared sensor unit is used to output control signals according to sensed infrared signals. The SCM outputs a trigger signal according to the control signals from the infrared sensor unit. Input ends of the zero trigger circuit are connected to the SCM to receive the trigger signal. An anode and a cathode of the thyristor is connected to a power supply line for the socket. A control end of the thyristor is connected to an output end of the zero trigger circuit.