Unoziva Nezve MOSFET Masekete?

MOSFET maseketi anowanzo shandiswa mumagetsi, uye MOSFET inomiririra Metal-Oxide-Semiconductor Field-Effect Transistor. Dhizaini uye mashandisiro eMOSFET maseketi anovhara akasiyana siyana minda. Pazasi pane ongororo yakadzama yeMOSFET maseketi:

I. Basic Structure and Working Principle yeMOSFETs

1. Basic Structure

MOSFETs anosanganisira kunyanya matatu emagetsi: gedhi (G), sosi (S), uye dhiraivha (D), pamwe nesimbi oxide insulation layer. Zvichienderana nerudzi rweiyo conductive chiteshi, MOSFETs inoiswa muN-chiteshi uye P-chiteshi mhando. Zvinoenderana nekudzora mhedzisiro yegedhi voltage pane conductive chiteshi, ivo vanogona zvakare kukamurwa kuita yekusimudzira modhi uye depletion mode MOSFETs.

2. Kushanda Nheyo

Nheyo yekushanda yeMOSFET yakavakirwa pamagetsi emunda mhedzisiro yekudzora conductivity ye semiconductor zvinhu. Kana gedhi remagetsi richichinja, rinoshandura kugoverwa kwechaji pane semiconductor pamusoro pezasi pegedhi, iyo inodzora hupamhi hweiyo conductive chiteshi pakati pechitubu nekudonhedza, nekudaro ichigadzirisa kudonha ikozvino. Kunyanya, kana gedhi regedhi richipfuura chimwe chikumbaridzo, chiteshi chinotungamira chinoumba pane semiconductor pamusoro, chichibvumira conduction pakati pechibviro uye dhizaini. Sezvineiwo, kana gwara rikanyangarika, tsime uye dhiraini zvinogurwa.

II. Zvikumbiro zveMOSFET Circuits

1. Amplifier Circuits

MOSFETs inogona kushandiswa seamplifiers nekugadzirisa gedhi voltage kudzora kuwanikwa kwazvino. Iwo anoshandiswa muodhiyo, redhiyo frequency, uye mamwe amplifier maseketi kuti ape yakaderera ruzha, yakaderera simba mashandisiro, uye yakakwira-kukwidziridza.

2. Kushandura Circuits

MOSFETs anoshandiswa zvakanyanya sechinjo mumaseketi edhijitari, manejimendi emagetsi, uye madhiraivha. Nekudzora magetsi egedhi, munhu anogona kushandura dunhu nyore kana kudzima. Sekuchinja zvinhu, maMOSFET ane zvakanakira kukurumidza kushandura kumhanya, kuderera kwesimba rekushandisa, uye nyore kutyaira maseketi.

3. Analog Switch Circuits

Mune analog maseketi, MOSFETs anogona zvakare kushanda seanalog switch. Nekugadzirisa magetsi egedhi, vanogona kudzora on / off state, vachibvumira kuchinja uye kusarudza zviratidzo zveanalog. Rudzi urwu rwekushandisa rwakajairika mukugadzirisa zviratidzo uye kutora data.

4. Logic Circuits

MOSFETs anoshandiswawo zvakanyanya mudhijitari logic maseketi, senge logic magedhi (AND, OR magedhi, nezvimwewo) uye ndangariro zvikamu. Nekubatanidza akawanda MOSFETs, yakaoma dijitari logic dunhu masisitimu anogona kugadzirwa.

5. Power Management Circuits

Mumagetsi ekutonga maseketi, maMOSFET anogona kushandiswa kushandura magetsi, kusarudzwa kwemagetsi, uye kutonga kwesimba. Nekudzora iyo yekumisa / yekudzima mamiriro eMOSFET, manejimendi anoshanda uye kutonga kwesimba kunogona kuwanikwa.

6. DC-DC Vashanduri

MOSFETs anoshandiswa muDC-DC converter yekushandura simba uye voltage regulation. Nekugadzirisa maparamendi senge basa kutenderera uye kushandura frequency, inoshanda magetsi shanduko uye yakagadzikana kubuda inogona kuwanikwa.

III. Yakakosha Dhizaini Mafungiro eMOSFET Masekete

1. Gedhi Voltage Control

Iyo gedhi voltage ndiyo yakakosha parameter yekudzora conductivity yeMOSFET. Paunenge uchigadzira maseketi, zvakakosha kuti uve nechokwadi chekugadzikana uye kurongeka kwegedhi voltage kudzivirira kuderedzwa kwekuita kana kutadza kwedunhu nekuda kwekushanduka kwemagetsi.

2. Drain Current Limitation

MOSFETs inogadzira imwe huwandu hwekudonha ikozvino panguva yekushanda. Kuchengetedza MOSFET uye nekuvandudza mashandiro edunhu, zvakakosha kudzikamisa dhizaini iripo nekugadzira dunhu nemazvo. Izvi zvinogona kuwanikwa nekusarudza iyo chaiyo MOSFET modhi, kuseta kwakaringana gedhi voltages, uye kushandisa kwakakodzera mitoro kuramba.

3. Temperature Kugadzikana

Kuita kweMOSFET kunokanganiswa zvakanyanya nekushisa. Madhizaini edunhu anofanirwa kuverengera kukanganiswa kwetembiricha pakuita kweMOSFET, uye matanho anofanirwa kutorwa kuwedzera kugadzikana kwetembiricha, sekusarudza mhando dzeMOSFET dzine kushivirira kwakanaka uye kushandisa nzira dzekutonhora.

4. Kuzviparadzanisa nevamwe uye Kudzivirirwa

Mumasekete akaoma, matanho ekuzviparadzanisa anodiwa kudzivirira kukanganisa pakati pezvikamu zvakasiyana. Kuchengetedza MOSFET kubva mukukuvadzwa, maseketi edziviriro akadai seanopfuura uye overvoltage kudzivirira anofanirwawo kuitwa.

Mukupedzisa, maseketi eMOSFET chikamu chakakosha chemagetsi edunhu kunyorera. Dhizaini chaiyo uye mashandisiro eMOSFET maseketi anogona kuzadzisa akasiyana edunhu mabasa uye kusangana nezvinodiwa zvakasiyana zvekushandisa.