Audio signal infrared transmitting device with self-charging function and its remote control method

Abstract

The invention discloses an audio signal infrared emitting device with a self-charging function and a remote control method thereof. The audio signal infrared emitting device includes a 3.5mm audio plug, a full-wave rectification circuit, a voltage doubler circuit, a capacitor charging circuit and a signal amplification transmitting circuit. The left channel output of the 3.5mm audio plug is respectively connected to the left channel input of the full-wave rectifier circuit and the left channel input of the voltage doubler circuit, and the right channel output of the 3.5mm audio plug is respectively connected to the full-wave rectifier circuit The right channel input terminal of the voltage doubler circuit is connected with the right channel input terminal of the voltage doubler circuit, the voltage doubler circuit is connected with the capacitor charging circuit, the capacitor charging circuit is connected with the signal amplification transmitting circuit, the full wave rectification circuit is connected with the signal amplification transmitting circuit, the full wave The rectifier circuit is respectively connected with the capacitor charging circuit and the signal amplification and transmitting circuit; the advantages are lower cost, longer transmission distance, lower energy consumption, higher reliability and stability, no need for battery power supply, and no environmental damage Pollution and waste of energy.

Description

technical field [0001] The invention relates to an audio signal infrared emitting device, in particular to an audio signal infrared emitting device with a self-charging function and a remote control method thereof. Background technique [0002] With the rapid development of electronic technology, high-tech smart home appliances such as slide projectors, TVs, air conditioners, lighting equipment and game equipment have gradually entered people's lives. As a tool for users to interact with these smart home appliances, the remote control of electrical appliances plays an important role in people's lives. Existing remote controllers for electrical appliances are mainly infrared remote controllers, and the infrared remote controllers implement control of electrical appliances by way of infrared remote control. Because the infrared remote controller has the advantages of low price and mature technology, at present, the infrared receiving device is generally installed in the smart...

AI Technical Summary

Problems solved by technology

However, with the increase of smart home appliances in the family, the number of infrared remote controllers is also increasing. The number of remote controllers used in a family ranges from a few to as many as a dozen, which leads to the following problems: a large number of remote controllers give Inconvenience for users to use and manage; disposable alkaline batteries used in infrared remote controls, if not properly disposed of after disposal, will bring great harm to the environment, which does not meet the needs of today's green and environmentally friendly society; remote controls After accidental damage, it can be difficult to find a matching remote

[0004] The above-mentioned first audio signal infrared emitting device has a simple structure, but because the output power of the 3.5mm audio output interface of the smart phone is usually small, the transmission distance of the infrared emitting device will be very short, and it is not practical.

The above-mentioned second audio signal infrared emitting device is relatively low in cost and small in size, but it has the following problems: 1. The signal processed by the full-wave rectification circuit is directly input into the transistor amplifier circuit. Voltage drop, the output current of the audio interface of the smart phone is too small, the transistor will not be able to conduct and the transistor amplifier circuit will fail, which will eventually lead to poor reliability and stability of the infrared emitting device; 2. The power loss of the transistor amplifier circuit is large when it is static , so that the power consumption of the infrared emitting device is relatively large

The above-mentioned third audio signal infrared emission device generates audio signals through a microcontroller, the transmission distance is relatively long, and the reliability and stability are high, but its cost and power consumption are high, and its volume is relatively large

In addition, the above-mentioned three kinds of audio signal infrared transmitting devices still need to be powered by batteries, and the capacity of the batteries is limited, and the batteries will be replaced after a period of time, which will still cause environmental pollution and waste of energy.

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