Video: Dab tsi yog hav point hauv Ujt?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
hav point (1) (ntawm programmable unijunction transistor characteristic) Cov taw tes ntawm qhov tam sim no-voltage yam ntxwv sib xws rau qhov thib ob qis tshaj tam sim no ntawm dvAK/diA = 0 thaum lub rooj vag yog biased los ntawm ib tug resistive voltage divider.
Hais txog qhov no, dab tsi yog qhov ncov point thiab hav taw tes hauv Ujt?
Kuvp. Nws yog lub emitter tam sim no ntawm lub peakpoint . Nws sawv cev rau rnimrnum tam sim no uas yuav tsum tau ua rau lub cuab yeej ( UJT ). Nws yog inversely proportional to the interbase voltage VBB. Valley Point VoltageVV Cov hav point voltage yog lub emittervoltage ntawm lub hav point.
Ib sab saum toj, vim li cas Ujt hu ua so oscillator? UJT relaxation oscillator . Cov UJT relaxationoscillator yog hu ua Yog li vim hais tias lub sij hawm ncua sij hawm yog teeb tsa los ntawm kev them nyiaj ntawm lub capacitor thiab lub sij hawm ncua sij hawm yogceased los ntawm qhov tawm sai sai ntawm tib lub capacitor.
Tsis tas li ntawd, kev siv Ujt yog dab tsi?
Feem ntau daim ntawv thov ntawm a unijunctiontransistor yog ib yam khoom siv rau SCR's thiab Triacs butother UJT Cov ntawv thov suav nrog sawtoothed generators, simpleoscillators, theem tswj, thiab lub sij hawm circuits. Qhov yooj yim tshaj plaws UJT circuits yog Relaxation Oscillator uas tsim cov non-sinusoidal waveforms.
Peak voltage ntawm Ujt yog dab tsi?
Cov ncov voltage ntawm unijunctiontransistor ( UJT ) qhia qhov siab tshaj plaws hluav taws xob hauv qab no uas qhov kev sib tshuam ntawm cov terminals emitter thiab puag 1 (B1) ntawm UJT ua raws li ib tug qhib Circuit Court thiab tsis triggerinto conduction.
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