How to classify the working principle and type of earphone switch

　　Headphone switchWidely used in various fields today, headphone switches include headphone jack, DC jack, usb jack, etc. Headphone jack currently has 2.5mm and 3.5mm series headphone jacks. Specifically, I know that some people do not know much about the relevant knowledge points of headphone switches, such as how to classify the working principle and types of headphone switches. Then, let's learn about the working principle and types of headphone switches!

the structure of the headphone switch:

When the input voltage of the earphone switch is cut off as an AC square wave, its amplitude can be increased or decreased by the transformer, and the number of output voltage groups can be increased by increasing the number of secondary windings of the transformer. These AC waveforms of the earphone switch plug are rectified and filtered to obtain DC output voltage. The main purpose of the controller is to stabilize the output voltage. Its working process is very similar to that of the linear controller, that is to say, the functional blocks of the controller, the voltage reference, and the error amplifier can be designed in the same way as the linear regulator. The difference between them is that the output (error voltage) of the error amplifier passes through the voltage/pulse width conversion unit before driving the power tube. The antiparticle of the electron is the positive electron, and the mass, spin and charge are the same as those of the electron, but the positive and negative of the charge are opposite to those of the electron. The electron and positron disappear from each other in the collision. In the process, more than one pair of photons are generated. Electrons are negatively charged and rotate around the nucleus. The interaction force of electrons working at the speed of light in the same direction is zero.

　　Headphone switchType classification:

1. The structure type of earphone switch base is divided into plastic shell type, frame type, current limiting type, DC fast type, demagnetization type and leakage protection type.

2. The number of poles of the earphone switch can be divided into single pole, two poles and three poles.

3. Headphone switch all off time, general and fast before the trip mechanism action, trip time within 0.02 seconds.

4. The protection forms of the earphone switch are divided into composite disassembly and assembly, hot disassembly and non-disassembly.

BuyHeadphone switchthe attention

1. Confirm that the voltage of the headphone switch application circuit is below the rated voltage on the product specification.

2. Please consider the nature of the load and select the rated current value suitable for the earphone plug. When using the earphone switch, due to the large starting current, if the selected earphone jack cannot withstand the impact of the starting current within the required time, the socket contact will produce an arc, resulting in the socket contact melting, arc splashing, and damage to the earphone jack.

3. The choice of the mechanical life and electrical life of the headphone switch must be determined according to the use of the occasion. When the switch is frequently turned on and off, and the load is not large, please choose the switch that pays attention to the mechanical life. When bearing high power, please choose the switch that pays attention to the electrical life.

4. The headphone switch pays attention to its insulation resistance, and selects the headphone jack of the non-metallic operating handle.

The above is how to classify the working principle and type of headphone switch. If you need to know more, please feel free to contact us!