How much do you know about the properties and applications of Polyester/cotton Braided Sleeve?

When it comes to Polyester/Cotton Braided Sleeve, laymen may not know it, but as long as it is about the maintenance and beautification of computer power cables, audio and video cables, lighting, air conditioners, refrigerators, washing machines and other household appliances, as well as optical cables, motorcycles, cars, etc. , everyone probably has a little understanding, but it is not comprehensive. Let's understand the characteristics and applications of Polyester/cotton Braided Sleeve materials.

The Polyester/Cotton Braided Sleeve is a p-n junction formed by a p-type semiconductor and an n-type semiconductor. A space charge layer is formed on both sides of the interface, and a self-built electric field is built. When there is no external voltage, due to the current carrying on both sides of the p-n junction The diffusion current caused by the carrier concentration difference and the drift current caused by the self-built electric field are equal and in a state of electrical balance. When there is a forward voltage bias outside, the mutual suppression and cancellation of the external electric field and the self-built electric field make the carrier diffusion current The increase causes a forward current. When there is a reverse voltage bias outside, the external electric field and the self-built electric field are further strengthened, forming a reverse saturation current I0 that is independent of the reverse bias voltage value within the reverse voltage range. When the external When the reverse voltage reaches a high level, the electric field strength in the space charge layer of the p-n junction reaches a critical value to generate a multiplication process of carriers, a large number of electron-hole pairs occur, and a large reverse breakdown current occurs, which is called washing / Breakdown phenomenon of cotton braided sleeves.
There are many types of braided network tubes. According to the semiconductor materials used, they can be divided into germanium Polyester/cotton Braided Sleeve and silicon Polyester/cotton Braided Sleeve. Regulatory Polyester/cotton Braided Sleeve, switch Polyester/cotton Braided Sleeve, etc., can be divided into point contact type Polyester/cotton Braided Sleeve, surface contact type Polyester/cotton Braided Sleeve and flat type Polyester/cotton Braided Sleeve according to the tube core structure The point contact type Polyester/cotton Braided Sleeve is to press a very thin metal wire on the surface of a smooth semiconductor wafer, and pass a pulse current to make one end of the contact wire and the wafer firmly sintered together to form a PN junction. Contact, only allows a small current to pass through. It is suitable for high-frequency and low-current circuits, such as radio detection, etc. The PN junction area of the surface-contact Polyester/cotton Braided Sleeve is large, allowing a large current to pass. It is mainly used to convert alternating current. In the rectification circuit of direct current, the planar Polyester/cotton Braided Sleeve is a different kind of silicon Polyester/cotton Braided Sleeve, which not only can pass a large current, but also has stable and reliable performance. It is mostly used in switches, pulses, and high-frequency circuits. .
The important characteristic of Polyester/cotton Braided Sleeve is unidirectional conductivity. In the circuit, current can only flow in from the positive pole of polyester/cotton knitted sleeve and flow out from the negative pole. The following simple experiments illustrate the positive and negative characteristics of polyester/cotton knitted sleeve. orientation characteristics.