Misa nan PIN Diode?

Maa shi PIN Diode?

Takardar PIN Diode

PIN diode shine karamin kwaikwayar mutanen da ke ciki na karamin waɗanda suka fito da kafin kwaikwayar silicon ko germanium a taka da kafin kwaikwayar p-type da n-type. Duk da cewa an yi amfani da kwaikwayar haka a matsayin wata, yana da layi mai mahimmanci a kan amfani da shi a wurare dabam-dabam. Yana da kafin p, sannan kafin intrinsic, sannan kafin N, don haka ya zama PIN diode kuma suna ce ta daga haka.

Alamomin PIN Diode

Girman PIN Diode

Kamar yadda aka bayyana, PIN diode na da kafin intrinsic (da kashi mai mahimmanci) a taka da kafin PN junction, za a tafi girman kwaikwayar a cikin bayanai.

PIN diodes na girman da ake amfani da Mesa ko Planar structures. A cikin girman Mesa, an yi amfani da layers da suka fito a substrate, wanda ke taimaka wajen kontrola level of doping da thickness. A cikin girman Planar, an yi amfani da epitaxial layer a substrate, tare da p+ region da ake yi amfani da ion implantation ko diffusion.

Yadda Ake Amfani Da PIN Diode

Duk da cewa maa shi da diodes masu karatu a cikin yadda ake amfani, PIN diodes na da kafin intrinsic wanda yake taimaka wajen amfani da shi a wurare dabam-dabam kamar switches da attenuators.

Amfani Da PIN Diode a Tsakiyar Tsakiya

A tsakiyar tsakiya, depletion region a PIN diode’s p-n junction yana goma, wanda ke taimaka wannan current flow. Wannan gomjin yana taimaka diode a zama variable resistor da kuma yadda ake amfani da electric field mai yawa, wanda ke taimaka shi a high-frequency applications.

Amfani Da PIN Diode a Tsakiyar Rike

Idan PIN diode a tsakiyar rike, width of the depletion region yana fiye. A kan baya tsakiyar rike, kafin intrinsic layer yake goma da charge carriers. Wannan tsakiya ana magana -2v. An yi amfani da shi a switching purposes a tsakiyar rike.

Tsari Na PIN Diode

A cikin tsakiyar rike mai karfi, depletion layer yana goma da charge. Capacitance of the pin diode yana zama independent of the level of bias idan depletion layer yake goma. Wannan shine saboda ba a kai net charge a intrinsic layer. Leakage of RF signal yana da tsarin da yake da kai da diodes masu karatu saboda capacitance level yana da kai.

A tsakiyar tsakiya, diode yana taimaka wajen resistor kadan da non-linear device kuma ba ake amfani da rectification ko distortion. Value of the resistance yana da shugaban tsakiya. PIN diode na amfani a RF switch ko variable resistor saboda ba ake amfani da distortions kadan da normal diode.

Amfani Da PIN Diode

• RF switch

• High Voltage Rectifier

• Photodetector