[How to connect the voice switch] Simple installation method is introduced!

Lead: Voice-activated switches are mostly used in specific environments, and the circuit system can be started by voice conversion, which is a new energy-saving product. It is mainly composed of microphone, sound signal amplifier and AC switch circuit. When the light is sufficient, the voice control switch is closed, and only when the surrounding brightness decreases will the voice control switch start to work. How to connect the voice switch? During the installation process, many friends think that the structure of the voice-activated switch is very complicated, so let's take a look at the following introduction.

Introduction:

Acousto-optic controlled delay switch is an automatic lighting switch which integrates acoustics, optics and delay technology. Widely used in corridors, building corridors, bathrooms, toilets, factories, courtyards and other places. It is an ideal new green lighting switch in modern times, which can prolong the service life of light bulbs and save electricity. .

During the day or when the light is strong, the switch circuit is in a self-locking state and the light is not on. When the light is dim or the night comes, the switch enters the preparatory working state. At this time, when there are sound sources such as footsteps, voices and applause. The switch is automatically turned on, and the light is automatically turned on after a delay, which realizes "people turn on the light and people turn off the light", eliminating the ever-burning lamp and the trouble of finding the switch in the dark. .

Because of the advantages of voice control and light control delay switch, people have been studying it for a long time. With the development of science and technology, the design of voice-controlled and light-controlled delay switch is more and more simple and convenient. In order to overcome the shortcomings that the energy-saving switch in the prior art has no optical control function, and the switches are all in the form of contacts, especially the energy-saving switch with three functions of voice control, optical control and time delay, people often adopt integrated chips to design. This course design is based on what I have learned and the components I have. It consists of stabilized power supply circuit, acousto-optic signal acquisition circuit, control circuit, controlled circuit and other modules. The main chip used is TC408 1BP. In the whole process, we calculated the parameters of each device in the circuit, simulated the circuit, connected the circuit on the bread board, and finally made a physical object. After adding power, we got our expected results.

At present, there are many kinds of acousto-optic control delay switches with different designs, but we can reform the circuit, increase its control factor and control the whole circuit more accurately, for example, redesign the delay circuit to keep different time for people of different ages. Acousto-optic controlled delay switch is widely used, and we should do more research in this aspect to greatly improve the value of acousto-optic controlled delay switch.

Function:

Sound control

When you make a sound in other ways (or whistle, shout, etc.). ) near the switch, you can turn on the light and use the appliance immediately, which is handy.

stay

Once the self-closing switch is controlled to turn on, it will automatically turn off after a delay of tens of seconds, which reduces unnecessary waste of electric energy and is practical and convenient.

Extend the service life of electrical appliances

The controllable loop of voice-activated switch adopts contactless electronic components, which can eliminate surge current and spark.

Voice-activated switch is also called delay switch by many friends. Its biggest feature is that it has no contact, and it can be controlled by sound exciter under certain circumstances. More and more friends are beginning to pay attention to voice-activated switches. Let's take a look at the following explanation. How to connect the voice switch? You need to pay attention to certain methods, otherwise the voice control switch will not work normally.

Voice-activated switch can also be regarded as an advanced sound sensor, which mainly uses the induction of external sound to convert electrical signals. When the brightness of the surrounding environment is less than the set brightness value, the photodiode will be in a high resistance state, so that the triode is in a conducting state, and touching the LED can activate the bulb to emit light. The control voltage is only 0.8V, which is very energy-saving.

How to connect the voice switch? In fact, the connection is very simple, because there is no need to distinguish between zero line and live line. Because the voice-activated switch adopts bridge circuit rectification, that is to say, it can be controlled in one direction, mainly converting AC mains electricity into half-wave electricity. Even after the SCR is turned off, a small amount of current can still flow, and at this time, the circuit will automatically flow into the energy-saving lamp, resulting in light emission. When connecting, it is generally necessary to rectify 220V alternating current through 100K resistor. For the current limiting setting of the circuit, it is necessary to add four diodes in the circuit to ensure that the voltage between the bulb and the sensor can be 7.5V, so that the circuit can work normally.

How to connect the voice switch? Above, I have introduced it to my friend, so I can install it myself. Now friends can find that voice control switches are widely used in daily life. When installing, I need to arrange it in the right place first, and install it according to my friend's actual lighting needs, so as not to be disturbed by other lights and affect its sensitivity. I also want to do a good job of regular cleaning during use to avoid the brightness being affected.

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