Headphone sockets are generally composed of multiple contacts and socket structures, which mainly include headphone plugs, sockets, and conductive sheets. Firstly, for the headphone socket, there is a central plug on the headphone plug, followed by an auxiliary plug on both sides. There are two or more sets of metal plates on both sides of the auxiliary plug. However, there is a circular plug hole in the center of the headphone socket, which serves as the connecting part of the headphone plug column. The conductive piece of the headphone socket also has a curved contact part, which can contact the metal pieces located on both sides of the auxiliary plug, forming effective conductive contact and providing an independent transmission. However, at the same time, auxiliary plug holes are also installed on both sides of the headphone socket, relative to the auxiliary plug column. In addition, there are two opposite conductive pieces inside the auxiliary headphone plug plug holes.
Types of headphone sockets
1. The structural types of earphone sockets are divided into plastic shell type, frame type, current limiting type, DC fast type, demagnetization type, and leakage protection type.
2. The number of poles for headphone sockets can be divided into single pole, two pole, and three pole.
3. When the headphone socket is fully disconnected, the general and fast types operate before the release mechanism, and the release time is within 0.02 seconds.
4. The protection forms of headphone sockets are divided into composite release, thermal release, and no release.

Working principle of headphone socket
Once the input voltage of the headphone socket is chopped into an AC square wave, its amplitude can be increased or decreased through a transformer. By increasing the number of secondary windings in the transformer, the number of output voltage groups can be increased. The AC waveforms of the headphone socket are rectified and filtered to obtain a DC output voltage. The main purpose of the controller is to maintain stable output voltage, and its working process is similar to a linear controller. That is to say, the functional blocks, voltage reference, and error amplifier of the controller can be designed to be the same as linear regulators. Their difference is that the output of the error amplifier (error voltage) needs to go through a voltage/pulse width conversion unit before driving the power transistor. The antiparticle of an electron is a positron, with the same mass, spin, and charge magnitude as an electron, but the charge polarity is opposite to that of an electron. Electrons and positrons will annihilate each other due to collision, producing more than one pair of photons during this process. Electrons are negatively charged and rotate around atomic nuclei. The interaction force between electrons moving in the same direction at the speed of light is zero. Suggestions for purchasing headphone sockets
When choosing headphone sockets, don't be tempted by cheap prices. You may think that low-priced headphone sockets can also be used, but there is a big reason for the price difference. It may be defective headphone sockets, and cheap headphone sockets are all made of plastic structures as shells. Although they are relatively cheap, their safety, pressure resistance, and durability are not as good. Generally, there are certain safety hazards and other issues during use.

During use, the leakage, overload, and short circuit protection characteristics of the earphone socket protector cannot be adjusted or modified casually to avoid affecting the working performance of the earphone socket. And after a new installation or operation for a certain period of time, it is necessary to check its operating status while it is closed and powered on. If the circuit breaker in the headphone socket cannot be disconnected, it indicates that there is a malfunction in the internal wiring of the headphone socket and requires maintenance. But if the circuit breaker can break, it indicates normal operation and can continue to be used.