IiDiodes zeCapacitance eziguquguqukayo
Ukunikezelwa koluhlu olubanzi lweendidi zeemveliso kunye nokuqaliswa okuqhubekayo kweemveliso ezintsha, iimodeli ezikolu luhlu azikwazi ukugubungela ngokupheleleyo zonke iinketho. Sikumema ngokunyanisekileyo ukuba uqhagamshelane nangaliphi na ixesha ngolwazi oluthe vetshe.
IiDiodes zeCapacitance eziguquguqukayo | |||
Umenzi | Iphakheji | Ubushushu bokusebenza | |
Ukuchasa uthotho (ii-Rs) | UReverse Voltage (Vr) | Ulungelelwaniso lweCapacitance | |
I-Diode Capacitance | Buyisa ukuvuza kwangoku (Ir) | ||
I-Variable Capacitance Diode yisixhobo esikhethekileyo se-semiconductor esisebenzisa i-bias reverse ukuguqula iimpawu ze-capacitance ye-PN junction, ngaloo ndlela ifezekise ukuthuthwa kwe-capacitance.
Inkcazo kunye neempawu
Ingcaciso:I-varactor diode yi-semiconductor diode ehlengahlengisa amandla ayo e-junction ngokuguqula i-voltage ye-bias ye-reverse. Ilingana ne-capacitor eguquguqukayo, kunye ne-PN junction capacitance phakathi kwe-electrode yayo emibini iyancipha ngokunyuka kwe-voltage reverse.
Uphawu:Ubudlelwane phakathi kombane we-bias ojikelezayo kunye ne-junction capacitance ye-varactor diode ayikho emgqeni. Xa i-voltage ejikelezayo inyuka, i-depletion layer iyanda, ibangele ukuhla kwe-capacitance; Ngakolunye uhlangothi, xa i-voltage eguqukayo iyancipha, i-depletion layer iba yincinci kwaye i-capacitance iyanda.
indawo yesicelo
Ulawulo oluzenzekelayo (AFC):I-Varactors isetyenziswa ngokubanzi kwiisekethe zokulawula i-frequency ngokuzenzekelayo ukutshintsha i-frequency oscillators ngokulungelelanisa i-capacitance yabo, ngaloo ndlela igcina ukuhambelana nokuphindaphinda kwesignali efunyenweyo.
Ukuskena oscillation:Kwisekethe ye-oscillation yokuskena, i-varactor diode inokuvelisa isiginali ene-frequency eguquguqukayo ngokuhamba kwexesha, esetyenziselwa ukuskena imisebenzi kwi-radar, i-ultrasound, kunye nezinye izixhobo.
Ukumodareyitha rhoqo kunye nohlengahlengiso:Iidiode zeVaractor zikwasetyenziswa kwiisekethe zokumodareyitha rhoqo kunye neesekethe zokulungisa. Ngokomzekelo, i-electronic tuner yesethi ye-TV yombala itshintsha i-junction capacitance ye-varactor diode ngokulawula umbane we-DC ukukhetha i-resonant frequency yamajelo ahlukeneyo.
Ifomu yokupakisha
IiVaractors ziyafumaneka ngeendlela ezahlukeneyo zokupakisha ukukhawulelana neemfuno ezahlukeneyo zosetyenziso
Ukutywinwa kweglasi: I-varactor diode ezincinci kunye naphakathi zamandla zihlala zipakishwe kwiiglasi ezivaliweyo, ezibonelela ngokutywinwa kakuhle kunye nokuzinza.
I-Plastiki ye-encapsulation: Ezinye i-varactor diode nazo zifakwe kwiplastiki ukunciphisa iindleko kunye nobunzima.
Ukutywinwa kwegolide: Kwi-varactor diode enamandla aphezulu, i-casing yentsimbi isoloko isetyenziselwa ukupakisha ukuphucula ukuchithwa kobushushu kunye nokuthembeka.